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Lecture Notes in Economics and Mathematical Systems
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continuation on page
137
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Lecture
Notes
in Economics and
Mathematical
Systems
Managing Editors: M. Beckmann and
H. P.
Kunzi
Mathematical Economics
116
K. Miyazawa
Input-Output Analysis and the
Structure of Income Distribution
Springer
Verlag
Berlin· Heidelberg·
New York 1976
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Editorial Board
H. Albach'
A.
V.
Balakrishnan' M. Beckmann (Managing Editor)
P.
Dhrymes . J. Green . W. Hildenbrand . W. Krelle
H. P.
KUnzi (Managing Editor) . K. Ritter' R. Sato .
H.
Schelbert
P. Schonfeld
Managing Editors
Prof. Dr. M. Beckmann
Brown University
Providence, RI 02912/USA
Author
Dr . Kenichi Miyazawa
Hitotsubashi University
Kunitachi,
Tokyo, 1861Japan
Library
or
Congress Cataloging n Publication Data
Miyazawa, Ken' ichi , 1925-
Prof. Dr. H.
P.
KUnzi
Universitat ZUrich
8090 ZOrich/Schweiz
Input-output analysis and
the st ructure of
income
dis tr ibut ion.
(Mathematical economics) (Lecture
notes
in economics
and mathematical systems ; 116)
Bibliography: p.
Includes
index.
1.
Inter indust ry economics.
2.
Income
d is t r ibu t ion - ·
Mathematical
models. 3 . Japan--Economic
condi
i ons -
Mathematical models. I .
Ti t l e .
I I . Ser ies. I I I .
Se
r ies : Lecture
notes
in
economics
and mathematical
systems
;
116.
HB142.M59 339.2 76-000006
AMS Subject Classifications (1970): 90AlO, 90A15,
90A99
ISBN 978-3-540-07613-1 ISBN 978-3-642-48146-8 (eBook)
001 10.1007/978-3-642-48146-8
This w.ork is subject to copyright. All rights are reserved, whether the whole
or part of the material is concerned, specifically those of translation, re
printing, re·use of illustrations, broadcasting, reproduction by photocopying
machine
or
similar means, and storage
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Under § 5. of the German Copyright Law where copies are made for other
than private use, a fee is payable to the publisher, the amount of the fee
to
be determined by agreement with the publisher.
© by Springer-Verlag
Berlin'
Heidelberg 1976
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FOREWORD
The purpose of this study is in keeping with the
shift
in concern over the eco
nomic problems
of
growth to
those of
income
distribution in recent years. Income
distribution problems may be
analyzed
by
not only the
traditional
procedures, but
also
by
some
extensions of the input-output technique
as
I shall demonstrate in
this
volume of the Lecture Notes. Some
fruitful
results are obtained by applying the
extended input-output technique to
income
analysis
as
well
as
to output analysis.
This
volume
consists
of three
parts.
These parts
may
be
viewed
along
two
veins,
with
some overlapping unavoidable: (1) Parts One and Two contain extensions of the
input-output analysis
and
(2) Parts One
and
Three contain studies of the
effects
of
the structure of
income distribution
on some other
economic relationships.
First, as
an
extension of the input-output analysis, we present a synthesis of
the Leontief
interindustry
matrix
multiplier and
the
Keynesian
income
multiplier
in
disaggregated form, and introduce a
new
concept
which may be called
the Interrela
tional Income Multiplier"
as
a matrix. It
is
designed
to
analyze the
interrelation
ships
among
various income-groups in the process of
income
formation through the
medium of industrial
production
activity.
Although
this
multi-sector
multiplier
follows
from Leontief's interindustry
matrix
multiplier, i t is
formulated
by
the
inclusion of the
income
generation process,
which
is omitted in the usual input
output
open
model,
and by
projecting the
multiplier
process
into
not only the output
determination
side,
but also
into
the income-determination side.
Secondly,
we
shall proceed
to
formulate a
method
of
partitioning off
the
origi
nal Leontief inverse in terms of the combined
effects
of "Internal"
and
"External"
matrix
multipliers
and their
induced
sub-multipliers. Because
the usual Leontief
inverse provides
us
with
knowledge
of only the ultimate
total
effects of interindus
try propagation and not the disjoined effects separable
into
the partial multipliers,
as
such, our
method may
well
be
applied to the various kinds of problems
that
re
quire
us
to trace
back
to
the
interactions
among
two
or
more
strategic
industry
groups.
Finally,
some
empirical applications of these
two models
are introduced, deal-
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IV
ing with several cases from the Japanese economy and with
an
international comparison
of the interdependence between service and goods-producing sectors. The empirical
illustrations
also include the applications of
an
interregional version of the input
output
model
in the extended forms.
The other theme of
this
volume deals with the structure of income
distribution.
In
this context,
we
employ
two methods
of
entirely different
nature.
The first is an application of the above mentioned
interrelational
income multi
plier model, by which we clarify the effects of income-distribution-factors
on
the
income determination process.
In
the standard income analysis or in the standard
input-output open model, the
same
amount of autonomous expenditures cannot have vary
ing effects on the level of national
income
even
if
the expenditures consist of dif
ferent
commodity proportions.
The same criticism
holds for the Kalecki-Kaldor type
of models -incorporating income-distribution-factors as
far
as there are
no
changes in
the relative
income
shares.
But
in the real world this situation is not so.
It
will
be shown
that
in order to have the value of income vary in conjunction with the com
modity proportions of
demand,
i t
is
not
sufficient
to introduce the
structure
of
income
distribution by types of income-group alone, but we must introduce
at
the
same
time the
distribution-factors by
the types of
industrial
value-added for the
production structure also.
The second study is a differentials-analysis
especially
of
wages
and interests
as
rewards to the factors of production.
In contrast
to the above approach which
focuses upon the interindustry intermediate inputs
as
factors of production, we
concentrate our attention
directly
on income
distribution
among
the primary inputs
by the
size
of firms. The analysis is an integral part of the last Chapter's
in
vestigation of Japan's
dualistic
structure. The dualistic character of the Japanese
economy, reflected mainly in production techniques and financial arrangements, are
considered in relation to
distribution
and to economic growth.
While numerous individuals
have made
important suggestions
and criticisms,
I am
especially in debt to K. Ara, A.
S.
Bhalla. W.
H.
Branson,
S.
Masegi,
K.
Ohkawa.
M.
Shinohara.
Y.
Shionoya, and
T.
Watanabe. Special
gratitude
is extended to Ryuzo
Sato who read through the original manuscript with constructive criticisms
and
who
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v
recommended this volume
for publication in
this
Series.
The
author
gratefully
acknowledges Gilbert
Suzawa
for correcting and improving the English content of the
original manuscript. Lastly, the author wishes to thank the various Journals,
as
noted in the footnotes to each chapter,
for
permission to reproduce the original
articles in various revised form.
Tokyo,
August 1975
Kenichi
Miyazawa
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FOREWORD
INPUT-OUTPUT
ANALYSIS
AND THE STRUCTURE OF INCOME DISTRIBUTION
BY KENICHI MIYAZAWA
CONTENTS
PART ONE: INPUT-OUTPUT
AND
INCOME FORMATION
CHAPTER
1
INTERINDUSTRY ANALYSIS
AND
THE
STRUCTURE
OF INCOME
DISTRIBUTION
. . . . . .
.
I. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
II. Interindustry Analysis and the Process of Distribution and Expenditure
of National Income.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1)
The
Leontief Multiplier,
Keynesian
Multiplier
and
Kalecki Multiplier
2) Gener&lization of the Input-Output Model
3) The
Coefficients of Inter-Income-Groups
III.
The
Relationship of Inter-Income-Groups
and
the Multi-Sector
Income
Multipl ier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1) The
Income
Multiplier
as
a Matrix
2) Accepted Multipliers
as
Special Cases
3)
Structure of the Propagation Process
IV. The Convergence Conditions of the Model
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14
1)
The
Properties of Leontief-type Matrices
2)
Convergence Conditions in the
Model
CHAPTER
2
INPUT-OUTPUT
ANALYSIS AND INTERRELATIONAL INCOME MULTIPLIER
AS A MATRIX
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22
I. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
II. Formulation of a Regional
Income
Multiplier in the
form
of a Matrix .. 23
III.
The
Interrelational
Income
Multiplier
among
Regions
. . . . . . . . . . . . . . . . . . 26
IV.
Composition
of Final Demand and the Regional Income-Distribution
. . . . .
29
V. Output Determination and Interregional Income Generation . . . . . . . . . . . . . 36
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VIII
CHAPTER 3 FOREIGN
TRADE MULTIPLIER, INPUT-OUTPUT ANALYSIS
AND
THE
CONSUMPTION
FUNCTION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
I. Introduction
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
43
II. The Foreign
Trade
Multiplier
and
the Circular Flow of Intermediate
Products
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
III. The Modified Multiplier and the Fundamental Equation for an Open
Economy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
IV. Interindustry Analysis and the Consumption Function . . . . . . . . . . . . . . . . . .
48
V.
Empirical Estimates
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
51
VI.
Formula
for the
Computation
of the Subjoined Inverse showing the Effect
of Endogenous Changes in Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
1)
Derivation of the
Computation Formula
2) Propagation P ~ c e s s Combining Leontief's Multiplier and the
Keynesian Multiplier
PART TWO:
INTERNAL
AND
EXTERNAL
MULTIPLIERS
CHAPTER 4 INTERNAL AND EXTERNAL MATRIX MULTIPLIERS IN THE INPUT-OUTPUT MODEL . . . . 59
I. Introduction
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
59
II. Partitioned Matrix Multipliers
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
60
III.
Interregional Repercussion Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
IV. Some Extensions of the Model
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
71
1)
Extension
in the
Number
of Partitioned
Groups
2)
Inclusion of the Income Formation Process
CHAPTER
5 AN ANALYSIS OF
THE
INTERDEPENDENCE
BETWEEN SERVICE
AND GOODS-PRODUCING
SECTORS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
I. Introduction
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
76
II. Income
and Employment
Analysis of Interdependency of
Two
Sectors
. . . . . 77
III. Input-Output Analysis of the Interdependency of
Two
Sectors . . . . . . . . . . 85
1)
Intersectoral Propagation Pattern
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IX
2) Cost-Push Effects of Service-Prices
IV. International Comparison
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
93
PART
THREE: DUAL
ECONOMIC
STRUCTURE
CHAPTER 6
THE
DUAL STRUCTURE
OF THE JAPANESE
ECONOMY
AND
ITS GROWTH PATTERN
I. Introducti on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100
II.
Economic
Growth
and
Differentials
in Capital Intensity
by
Size of
Firm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
1) Schema of Capital Concentration
and Growth
of Enterprises
2) Differentials in Wages and Capital Intensity
3)
Permanence of the
Dual
Structure
III.
Differentials in Composition of
Funds and Interest
Rates . . . . . . . . . . . . .
111
1) Funds of Enterprises and Capital Accessibility
2) Differentials in Interest Rates on Borrowed
Funds
and Cost of
Funds
3)
Differentials in Interest Rates
and Unequal
Distribution of
Loans
IV. Structural Peculiarities of Capital Concentration . . . . . . . . . . . . . . . . . . . . 120
1) Factor Proportion
and
Differentials in Wages and Interest Rates
2) Structural Peculiarities of Capital Concentration in Japan
V. Conclusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
REFERENCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
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PART ONE
INPUT-OUTPUT
AND
INCOME
FORMATION
CHAPTER 1
INTERINDUSTRY ANALYSIS
AND THE STRUCTURE OF
INCOME DISTRIBUTION*
I .
r n t n o d u c t i o ~
In
the standard interindustry analysis, consumption demand is treated
as
an
exogenous
variable,
so
that
the usual Leontief matrix multiplier analysis lacks the
multiplier process via the
consumption
function
that
one customarily finds in a
Keynesian
Model. In
order to treat consumption demand as an e ~ g e n o u o variable in
the Leontief system, the household sector
is
routinely transferred to the processing
sectors, and is regarded as an industry whose output is labor and whose inputs are
consumption goods. But the appropriate procedure in dealing with
consumption
is not
to regard i t as a fictitious production activity, but to introduce the Keynesian
consumptiqn_function on a disaggregated level.
To this
end, we
have
formulated a
matrix multiplier
which combines Leontief's propagation process with the
Keynesian
propagation process in the form of the Leontief inverse multiplied by a
~ u b j o ~ ~ e d
~ n v ~ e matnix. The subjoined inverse reflects the
effect
of endogenous
changes
in
consumption demand.
l
)
Nevertheless, this extension of the standard Leontief model
may
not adequately
deal with the
interrelation
between
the interindustry
and
consumption
structures.
The
reason for this
is'
that the
consumption
structure generally
depends
on the
structure of income-distribution. The income-distribution structure regulates the
consumption pattern in that the consumption pattern consists of the expenditure be-
havior of various income-groups.
* This is a revised and integrated version of two articles which are originally
published, under the same title, in M ~ o e c o ~ o ~ c a Vol.15 Fas. 2-3, Agosto
Dicembre
1963
(with collaboration of
Shingo
Masegi),
and
in the theoretical part
of "Input-Output Analysis and Interrelational Income Multiplier as a Matrix,"
H ~ o t h u b ~ h i J O U A ~ a t 06 E c o n o ~ ~ Vol.8, No.2, Feb. 1968.
1) K. Miyazawa [32J, especially Section IV and VI. See Chapter 3 in this
volume.
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2
In
this
chapter,
we
shall
try
to incorporate the process of income distribution
and
expenditure into the input-output system. If we denote the
income
multiplier
manifesting the income-distribution-factors as the "Kalecki
multiplier ,2)
then our
task is one of
combining
the Leontief output multiplier and the Kalecki multiplier
into its disaggregated
and
generalized form.
I I .
In;tvUndu..6tJr.y
Anal.y.6,u, and .the PJc.Oc.e.6.6 06 V,u,:tJc..i..bution and
E x p e ~ e 06 National. Inc.ome
At the outset, in order to delineate the salient aspects our problem, we will
give a
brief
macro-numerical
example
of the model
to be
developed
later.
In the
standard input-output model, final demand
f
(= consumption C + investment I
=
10)
determines the level of output X
via
the input coefficient a = R/X = 3/4 (where R =
,
R
C
30
8
W 6
- - - - - - - - - -
p
4
total
X
40
f total intermediate inputs),
i.e.
,
I
I
I
I
I
I
I
I
I
2
I
\
X
40
1 - 1
X = f =
1 _ 3/4 . 10
= 40.
This is a
macrocosmic
expression of the Leontief output matrix multiplier.
But consumption C is originally induced by the income Y
( = wage W+
profit
p = 10). The consumption coeffi
cient is e =
e/y
= 8/10,
so
that the Keynesian income
multiplier equation is Y = 1 e I = 1 _18/10 . 2 = 10.
Thus by combining
the simple Keynesian income multiplier with the simple Leontief
output multiplier, we obtain the following output solution for an input-output model
with endogenous consumption demand:
3
)
1 f- 1 1 I .
X=r:a
= r : - a ~
( i)
2)
M.
Kalecki [25],
Chap.
5.
3)
This macro-multiplier (or its disaggregated form) is derived more convincingly by
tracing the propagation process from the initial injections. This
method
of
derivation is
utilized
in Chapter 3.
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3
Of
course, the income-multiplier
-1_1---
holds only for a
particular
income-dis
- a
tribution
pattern. Let dl
=
w/y
and
d2
=
p/Y
denote the
relative
shares of
wages
and
profit,
respectively,
and let
a
l
= Gw/W and a
2
= Gp/P
the propensities
to
consume of
laborers and capitalists, respectively, then
we
have
the generalized Kalecki income
multiplier
= 1 _ a l d ~ + a
2
d
2
) , which
incorporates the income-distribution
factors.
4
)
The
input-output solution is then expressed in the form of (ii):
(i
i)
If
we let v = y/x =
1 -
a
denote the value-added
ratio, and
v
l
= w/X, v
2
= p/x
the value-added
ratios
of
wage-income and
profit-income,
respectively,
the output
solution takes the following
form:
(i
i i)
This equation
(iii)
is
the macro-counterpart of the matrix
multiplier
which
we
will
develop next.
2) GenVta..Uza;tion 06
the
Inpu.t-Ou.tpu.t
Model
The
value-added
sector
in the
interindustry model is
not only divided into
n
industry-groups along the column, but is also divided
into
r income-groups along the
row, as
our simple macro-numerical
example
illustrates.
Let
us
express the
income
of the kth group earned
from
the
jth
industry
as Y
k j
(j
= 1, . . .
n ;
k =
1, . . . r ) ;
1
4) If we let
al =
1 ,0
<
a
2
<
1, we have
Kalecki
's own
formulation
1
(1 _ dl)(l _ (
2
) as a special case of this expression. If we let a
l
= 1,
a
2
_-,--'-1-.----,------;-, I -
1/2,
then
we
have
Y =
T -
(ald
l
+ a
2
d
2
) -
1
1
- 1/2
1
(6/10
+
1/2.4/10) • 2
10 or
2 =
10.
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4
this r x n income-formation matrix shows the most generalized pattern of income-dis-
tribution.
Corresponding to
this
income-distribution
pattern,
consumption
demand C
ik
is also defined as consumption for the ith
commodity
by the kth income-group (i = 1,
. . .
,
n
;
k
= 1,
. . . ,
r). The
coefficients
of our
model
are represented in Figure 1,
where:
Fi gure 1
A =
the n x n matrix
of input
coefficients
a . . =
x
. .
x.,
1.-J
1.-J
J
V =
the r x n matrix
of value-added
ratios v
k j
= Y
k
·Ix.,
J J
C =
the
n
x
r
matrix of consumption
coeffi cients
n
a ..
1.-J
x.
=
jth industry's
output,
J
Y
k
= kth income-group's income.
Let
x = a column vector of output,
fa = a
column
vector of consumption
demand,
i
, j
1, 2, . . . , n
k = 1 , 2 ,
. . .
,r
f
= a
column
vector of final demand other than consump-
(n > r)
ti on,
then, the input-output system
can be
conveniently expressed as
x = AX
+
fa
+
f·
(1
. 1 )
In
the standard input-output analysis
where fa'
as well as
f,
is treated as
an
exogenous variable, the following well
known
solution is obtained:
(1 .2)
But if we treat
the consumption
demand fa
as an endogenous set of variables and
re-
gard the household
sector as
a
distinct
decision-making unit instead of
as
a
ficti
tious production unit, the introduction of a disaggregated consumption function
is
necessary.
The
consumption function of our
model
can
be
written
as
follows:
f
=
Cv.x
=
~ k ) v k ) x - v
.x
l..
v -
l.. v k k .
a k=l k=l 1.-
J J
(1 .3)
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5
(k) _ ( (k)
where
°
-
0lk' 02k' . . .
,
°nk)
, is
a column vector and v =
(v
kl
' v
k2
' . . .
,
v
kn
)
is a
row
vector.
If
we
add
nonhomogenous
terms, or
exogenous
elements to the
con
sumption function,
C
becomes the matrix of marginal
coefficients, and
in
this
case we
can include the
nonhomogenous
terms in f.
5
)
Substituting the
consumption
function
(1.3) into
(1.1),
we get
X = A X + C V X + f
Solving (1.4) for X,
we
obtain the following alternative expressions:
X = [I - A - CV]-l f
=B[I - CVBr I f
=B[I + CKVB]f
( i )
(i
i)
(i i i)
where, of course, B =
[I
-
A]-l, i .e.,
Leontief inverse matrix multiplier.
(1 .4)
(1. 5)
The
first
expression (i) in (1.5) gives
us
the ~ g e i n v ~
matnix
multi
p l i ~ showing the total effects of exogenous final demand
on
outputs via interindus-
try and
induced
consumption activities. The
existence of the inverse
[I - A - cv]-l
is generally verified. Expression (i) can be converted into the second expression
(ii),
namely,
the "original Leontief inverse"
B
postmultiplied
by
the inverse
The
conversion
is as
follows:
[
-1
I - A -
cv]
[{I -
CV(I
- A)-l}(I -
A)]-l
(I
-
A)-l[I
_
CVB]-l
=B[I -
CVBr
l
(1 .6)
We can
refer
to the inverse [I -
CVB]-l
as the hubjoined i n v ~ matnix. This in
verse
reflects
the effect of endogenous
changes
in
each
income-group's consumption
expenditure. Matrix mul tiplier equation (1.6) corresponds perfectly to the
macro-
5)
If
we
define
some
o(k),
which
is
the
capitalist
group's
coefficient,
as , our
model
formally contains the prob
lem
of
induced
investment.
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6
multiplier
(iii)
in our previous example.
6
)
The
advantage of matrix multiplier formula (ii) in (1.5) is
that i t
distin-
guishes the inverse reflecting
endogenous consumption
activity from the inverse re
flecting production activity, in contrast to formula
(i)
which
does
not make
such
a
distinction. Moreover, if consumption coefficients and value-added ratios are not
as
stable
as
the input coefficients, i t is desirable to have the "subjoined inverse"
expressed in a form which can be easily computed and revised.
The
development of
such a practical computation formula is also useful
from
the standpoint of under
standing the theoretical aspects of inter-income
group
activity.
We
now
turn to
such
a task.
Let us write
k = l , . . . ,r
v = l ,
. . .
, r .
Then, as
we shall
show,
we can
prove
that:
B[I - CVBr
1
= B[I
+
CXVB].
(1.7)
The
third expression (iii) in (1.5) means that the n x n subjoined inverse
[I - cv.s]-l
can
be obtained, without inversing the matrix, by the means of using the
~ ~ e t t i o n l income m u t t p l ~ X whose order is r x r . A proof of the identity
between (ii)
and
(iii)
is as follows:
with the definition
then
X[I
- VBC] = I
'"
CX[I
- VBC]VB
=
CVB
CXVB[I
- CVB]
=CVB
I - CKVB[I - CVB] = I - CVB
I = [ I +
CXVB][I
- CVB]
: . [ I
-
CVBr
l
= I + CKVB,
where identity matrices I 's in the first and second equations have the order of
6)
If
we set r = 1 in (1.6), i.e.,
if
we
do
not
make
a distinction
among
the income
groups, the equation (1.6) coincides with the formula which
we have
derived else
where (see [32] p. 63 or (3.20) in
Chap.
3), and i t corresponds perfectly to the
macro-multiplier (i) in Section 1).
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7
l
X 1 ' , and those in the third and subsequent equations
have
the order of n x n
respectively. In practical terms, since l in
most
cases is very much smaller than
n,
the
l
x
l
matrix K should be readily obtainable. Consequently, if we already have
the numerical table for B, we
can
renew the subjoined inverse
whenever i t
is neces
sary to do so.7)
3)
The
Coe6McLent6 06 IntVt- Inc.ome-GlWupb
W e may also work out the proof of formula (iii) in (1.5) by the method
which
traces the propagation process initiated by the original injections. This method
may, at the
same
time, reveal the
economic meaning
of matrices Land K.
Denoting
by
m
the numerical stage of the propagation process, we get
(m 1;
2)
Hence,
Thus,
x
=I X = Bf
+
BC( I L
m
-
2
)VBf.
m=l m
m=2
Hence,
if the term
I
L
m
-
2
(i.e.
I
Lm) is convergent,8)
m=2 m=O
X = B[I + C(I - L)-lVB]f
=B[I + CKVB]f.
The result again confirms (1.7).
(1.8)
(1. 9)
(1.10)
(loll)
The
matrix
L =VBC
may
be
interpreted as
an
array of coefficients which show
the interrelationship among income-groups in the process of propagation resulting
from each income-group's
consumption
expenditure pattern. In order to prove this
7) Our
model
can be
easily
extended to accomodate
an open
economy with foreign trade.
8)
The convergence conditions of our
model
will be examined in Section IV.
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8
point,
we
take the vth
income group
as representative and trace its
consumption
ex
penditure
effect
on another kth income group's income.
-> ->
->
increase in output increase in income increase in consumption
of each industry of the vth
group
of the vth
group
->
increase in output of each
industry due to the additional
consumption
of the vth
group
increase in income of the kth
group
due
to additional
income
of the vth income group
Thus the element of
L,
i.e. Zkv' can be written as
(1.12)
That
is,
the coefficient Zkv shows how much income of the kth'income-group is gener-
ated by the expenditure
from
1 unit of additional income of the vth income-group.
Thus we
can
term L the "matrix of inter-income-group coefficients , and K "the
interrelational multiplier of
income
groups".
A proposition
arises
in connection with the matrix of inter-income-group co
efficients: the column sums of the matrix L equal the total consumption coefficients
of each income group, i.e.
i
L = i'VBC = i [ I - A]BC = i 'C
I
I
n n
where and i ; are
row-summation
vectors of order
n
and I respectively.
I I I .
The.
Re1.a.UonolUp
06
In.:teJt-Income.-GJtouP.6
and
the. Mutti-Se.etoJt Income. MuttiplieJt
(1.13)
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9
1) The
Inc.ome MuLUpUeJl.
a6
a. Ma.tJvi.x
We
shall now project equilibrium output into equilibrium income.
As
before,
denoting by Y the
column
vector of r order
whose
elements are household
incomes by
income-groups, we get
Y = VX.
(1.14)
substituting
formula (iii) of (1.5) into this expression (1.14), the income equation
becomes
Y
=
VB[I + CXVB]f
[I
+
VECX]VEf
[I
+ LX]VBf,
in which r + LX = X because [r
-
L]K = I , so we obtain
Y = KVBf.
(1.15)
(1.16)
Justification for the existence of formula (1.16)
may
be attempted by tracing
the propagation process caused
by
the
initial
autonomous injection of f , or final
demand
excluding endogenous
consumption
expenditure.
Using
suffix
m
in parentheses
( ) to denote the numerical stage of propagation,
we
get
VX{l)
= VBf
VX (m) = VECY (m-
1 )
(1.17)
m-1
=
LY{m-1)
=
L Y{l) '
for m 2
This gives the expansion in powers as:
00 2 3
Y
=
m ~ r
(m)
=
Y
(1)
+
LY
(1)
+
L
Y
(1)
+
L
Y
(1)
+
2 3
=
[ r + L + L + L + . . . ]Y (1
) .
(1.18)
Hence, if the
term
L
m
is convergent, we obtain the following fundamental equation of
income
formation:
Y
=
[I
-
L]-l
VEf
=
KVBf·
(1.19)
We may des i gnate the r x
n
matri x
KVB
as the
m u L U - ~ e c . : t o J t
..[nc.ome
muLUpUeJl.
in
matrix form or simply ma.tJvi.x
muLUp£..{eJt
on ..[nc.ome
noJtma.t..[on.
This matrix has the
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10
following composition: the interrelational income multiplier" K post-multiplied by
the coefficient matrix of induced income VB.
9
) Thus, equation (1.19) will give us
the direct and indirect induced incomes of each income-group attributable to the
initial autonomous demand.
10
)
This multi-sector
income
multiplier is a distinguishing feature of our model.
In
the conventional input-output analysis, where
consumption demand
is
entirely
exogenous, the outputs of various industries
have
different values depending
on
the
proportions of final
demand;
but as
far as
the value-added sector is concerned, in
come has the same value as final demand
and
does not depend on the proportions of
final demand. In contrast, as is evident in (1.19) of our model, incomes (both
total
income and group
incomes) have
different values depending on the proportions of final
demand,
and
this is due to the fact
that
our
model
takes explicitly into account the
structure of income
distribution.
2)
Ac.c.epted Mu1:UpUeM M Special.
e M U
This conclusion cannot
be
obtained
by
the introduction of
an
endogenous consump-
tion structure without some explicit consideration of the distribution-pattern.
The
reason for this is as follows.
(a) If we do not distinguish among the income-groups, i.e. if we let r =
1,
the matrix V becomes the row vector of
n
order and, correspondingly, matrix C be
comes
the
column
vector of n order. If we denote these vectors as
v '
and a,
respectively, and assume that all value-added in the national economy consists of
the income accruing to the household
sector,ll)
then
9)
An
alternative justification for formula (1.19) was suggested
by
W. H.
Branson
[4] at the Econometric Society Meetings,
Washington
D.C., 1967. Income gener
ated by exogenous expenditure is equal to VBf,
and
income generated through
endogenous
demand
as
a function of income is
equal
to VBCY, thus
income
Y is
10)
11)
given by Y = VBCY +
VBf
=
[I
- VBCr
1
VBf.
To
combine the income-effect in our model with the
relative price-effect,
we may
be
utilized R. Stone's "linear expenditure system". See [50], [52].
With
this
assumption,
v'
becomes
the vector of value-added
ratios for
the
whole
economy, and in an economy with
no
foreign trade and government activities, the
conversion
v'
= i [I -
A]
becomes possible. Then we get
v'B
= i [I
- A][I -
A]-l = i I =
i .
Of course, if the household sector accounts for only
one part
of the value-added
sectors in the national economy,
this
conclusion
must be
modified.
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11
L
= VBC =
v'Ba
= i [ I
- A]Ba
= i 'a
=a
(=Keynesian
macro-propensity to
consume)
[
-1 1
K = I -
L]
= - -
1 -
0
(1. 20)
where
i
is a row-summation vector. So, the income multiplier equation (1.19) be-
comes
Y
= KVBf
= _ 1 _ v'Bf = _ 1 _
i f
=
_ 1 _
f
1 - 0
1 - 0 1 - 0
a
(1.21 )
where fa
is
a
scalar,
where fa
=
fl
+
f2
+
f3
+
. . .
+
fn'
and
the vector Y
becomes
a
scalar, too. This scalar multiplier coincides exactly with the
Keynesian
multiplier.
Thus
our conclusion
that
income
has different
values depending
on
the proportions of
exogenous demand
is not substantiated in the special Keynesian case.
12
)
(b)
Furthermore,
even
if we introduce income-distribution-factors in macro
economic form
as
in the Kalecki or Kaldor models, the above Keynesian result is not
improved. Denoting by
d the column vector of k order
whose
elements are
relative
shares of each income-group,13) we
may
rewrite the matrix Vas V =
dv',
and the
matrix L takes the following
form:
L = VBC = dv'BC =
di'C
= de',
where e ' = i 'C is the row vector of
k
order whose elements are the
total
propensities
to consume of
each
income-group.
Then,
we get L
m
=
(de,)m
=
d(e'd)m-l
e
,
=
dim-le',
where
i is a scalar
showing
the weighted average of propensities to consume of each
income-group. Thus, the
interrelational
income
multiplier in
this
case
is
K = [I - L]- l = I + I L
m
m=l
=
+ I
i
m
-
1
de' = I
+
_ 1 _
de'
,
m=l 1 - i
12)
The
output
multiplier
corresponding to
this
case will
be
X
=
B[I
+
_ 1 _
ai']f
1 - a
and this coincides with the
result
(3.20) in Chapter 3.
13)
Where,
of course, the
sum
of all elements of d is equal to
1,
i .e.,
2k
d + d +
. . .
+ d - 1 .
(1 .22)
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12
and the fundamental equation takes the
form:
Y = KVBf
= [I
+
_ 1
_ de']
dv'Bf
=
[I
+
_1__ de']
di f
=
[d
+
~ d ] f
1-1.
1-1. 1-1.
= _l-df.
1 -
i
0
(1. 23)
In which case, the autonomous
demand
vector f becomes a scalar fO' and the equation
(1.23) coincides with the
Kalecki multiplier,
except when i t is expressed in some
generalized
form.
In order to convert the above equation into a scalar multiplier,
all that
is
required
is
to multiply both sides of the equation
by
summation
vector
i , i .e .
i Y =
i,_l_
df =
i d-
l
- f
=_1_
f •
l i 0 l i
O
l_ i
O
(1. 24)
If we assume the constancy of
relative
shares, the scalar 'i
always
takes a constant
value, and, after all, equation (1.24) ends
up
being formally equivalent to the
Keynesian multiplier (1.21).
(c) Again, if
we
regard consumption
demand
as
an exogenous
variable
as
is
customary
(f = f + f), the income multiplier equation becomes
()
Y
= VBf =v'Bf = i f = fO'
(1. 25)
and
income equals final demand irrespective of the proportions of final demand.
Thus, in order to conclude that the values of income
differ
depending
on
the
proportions of autonomous final
demand,
i t is necessary to introduce not only the
structure of consumption
demand,
but also the structure of
income
distribution.
3) Sbw.c.twr.e
06 .the PILOPll9ilioYl PILOC.e1>.6
If we
lump
together the above two
mechanisms
of output and income determination,
we
have the following system:
~ ] = [*J +
(1.
26)
Solving
this
system for
X
and
Y,
we
get
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13
and
i t is expected that this solution
can
be converted to the
form:
(1.27)
where g
is
a
column
vector of exogenous income.
14
) The preceding separate solutions
(1.5) and (1.16) are equivalent to (1.27)
where
g is disregarded.
Now, let
us return to the output propagation equation (1.10). Equation (1.10)
can
be
interpreted
as the propagation process viewed
from
the income-formation side.
But the same propagation process can also be observed from the consumption side or
the production side as well. These three aspects of the propagation process are:
(a) the income-formation side
(VBC
=
L)
x
=
Bf + BC[I + VBC + (VBC)2 +
. . .
]VBf
= Bf
+
BC[I - L]-lVBf
(b) the consumption expenditure side
(CVB)
x
=
B[I + CVB + (CVB)2 + . . . ]f
= B[I + C(I -
L)-lVB]f
(c) the production side (BCV)
X =
[I
+
BCV
+ (BCv)2 + ..• ]Bf
[I
+
BC(I -
L)-lV]Bf.
(1
.28)
(1. 29)
(1. 30)
It is interesting to note that in all cases, we can obtain the computation for
mula
(1.7) by projecting the propagation process
into
the income-formation side L =
VBC.
On
the other hand, if
we
derive the
sum
of the geometrical progression
from
the
consumption side (CVB) or the production side (BCV), we
do
not obtain the computation
formula (1.7) directly, but instead obtain the equation (1.6) which is the product of
two inverse matrices. This means
that
the income-formation side
has
a homogeneous
14)
The proof of (1.27) is easily demonstrable by use of the following identity:
IPEI + CKVB] IBCK] [r - A I-C] = W ]
L KVB IK
L-V
0
iPr
I
The
expression (1.27) in
this
chapter
is
equivalent to the formula in
K.
~ i y a z a w a
[33], or (4.7) in Chap. 4, in which, if we let Bl = VB, B2 = BC and M = K, we get
(1. 27) .
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14
character
which contrasts
strikingly with the
nonhomogeneous
character of both pro-
duction
and
consumption
activities.
One other
point
regarding the propagation process should be explained. Equa
tions
(1.28) (1.30)
assume
a propagation process in
which
the
entire
process
is
a
succession of
separate
two-step movements: in the
first,
the propagation
from
the
production
side is
represented entirely
by
the effect of matrix
B, and
in the next
step,
the propagation occurs on the income-formation and consumption expenditure
sides.
But
instead of
this
assumption,
we may
assume
that
propagation occurs simul
taneously in
all
three sides, i .e . , production, distribution and expenditure.
In
the
latter case, instead of equation (1.28) (1.30), the propagation equation may
be
rewritten
as
follows:
x = f +
(A
+ CV)f +
(A
+ Cv)2f +
(1.31 )
00
We write
A
+
CV = Q,
and,
if
we
assume
the term
L
to be
convergent, we
have
m=O
(l
.32)
which
coincides with
(i)
of
(1.5). By
formulae
(ii) and (iii)
of
(1.5), we
get
X =
B[I
-
CVB]-lf
=
B[I +
CKVBJf.
Thus, the two propagation cases, i.e. the case of (1.28) (1.30)
and
the case of
(1.31),
have
the same
sum,
but obviously the
~ n c t e d muttiplien
in the case of
(1.28) (1.30) has generally a larger value than the truncated
multiplier
in the
case of (1.31).
We turn
next
to
the analysis of the convergence conditions of these
two
cases.
IV.
The
Convengence CondLtiOn6 06
the
Model
So
far,
we have
assumed
the existence of a meaningful solution,
X
0,
for
our
fundamental equation, X = AX + CVX + f, (f
0),
i .e . , we
assumed
the existence of
1
1 -1
(I
- A - CV) =
(I
-
Q)
0
and
of K = I - L) .
In
order to
treat
these prob-
lems
and their relationships, we will first review the properties of the Leontief
type matrices as preparation for developing the convergence conditions of our model.
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15
1) The PfWpeJLtie.-6 06 Leon.tie6-type
Ma:tJUce.-6
For
non-negative square matrices in general, the following properties are well
known:
[I] Let a
be
a n x n non-negative matrix. Then the conditions (1°) - (4°)
below are equivalent.
00
(1
0) Lam
converges
m=O
(2°)
All
characteristic roots of a are less than 1 in absolute value.
(3°) I - a is non-singular and
(I
-
a)-l
is non-negative
(4°) For any non-negative vector f , the equation (I -
a)x = f
has a
unique non-negative solution.
For Leontief-type matrices,. i.e. non-negative matrices with
no
column-sums
greater than 1,
Woodbury
gives the following
lemma:
15
)
[II]
Let
a
be
Leontief-type and I - a nonsingular. Then the equation
(I - a)x = f has a unique non-negative solution.
From
propositions
[I]
and
[II] we
obtain
00
Lemma
1.
Let
a
be Leontief-type. L
am
converges
if
and only
if I
-
a
is
m=O
nonsingular.
Now,
we may transform a into the form (1.33) below by some permutation matrix P
A2 •••••.••
A2k
(1 .33)
o
where A
l
, A
2
, . . . ,
Ak
are indecomposable square submatrices, and k > 2 or k
=
1
depending
on
whether or not
a
is decomposable.
Then we may improve upon another proposition of Woodbury's.16)
15)
M.
A.
Woodbury
[54],
p.
353,
Lemma
3.2.
16)
M.
A. Woodbury [54],
p. 357,
o n o L t ~ y 3.6,
where
the condition is stated
as
follows: at least one of the column sums
be
less than 1 for some column in
each block.
06 columlU>
of the matri
x"
.
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16
[III]
Let a be Leontief-type. A necessary and sufficient condition that
any non-negative
v e t o ~
t,
the
equation
(I -
a)x =
t ha6
a non-negative ~ o ~ o
is
that at least
one of the column
sums be
less than 1 for some column in each
submatrices A
l
,
A
2
, . . . ,
Ak in (1.33).
Based on
[I],
another
form
of [III] is obtained by replacing the paragraph
italicized
in [III] with "all characteristic roots of a be less than 1" in absolute
value,
which
we call
[III'].
Solow's Theorem asserts that condition [III '] is a sufficient one.
17
)
W e
can
also
show
that
i t
is
necessary too.
18
)
A different form of [III] or
[III '] ,
more convenient for our purpose, is
Lemma 2. 19) Let a be Leontief-type.
00
(1°) If all column-sums are less than 1, Lam converges.
m=Q
00
(2°) If all column-sums are equal to 1,
L m
diverges.
m=Q
17)
R.
Solow
[47], p. 36, Theorem 1
and
p. 38, Corollary.
18) Proof of the necessity of condition
[III '] .
We show that
(i) implies (ii)
below.
(i) All characteristic roots of
a
are less than 1 in absolute value.
(ii) Each A
l
,
A
2
,
. . .
,
Ak has at least
one column-sum
less than 1.
Suppose that the condition (ii) does not hold. Then all column-sums of
some
A . are equal to 1. For m-dimensional vector j = (1, 1, . . .
, 1 ) ,
m being the
d ~ g r e e of A., jA. =
l . j ,
i. e. 1 is a characteri stic root of
A.. As
the
'I. 'I. ' .
characteristic
roots of A
l
, A
2
, . . . ,
Ak
are also
that
of
a,
1 is a characteris-
tic
root of
a,
unlike
(i).
19) Proof of Lemma 2.
(1°), (2°) and the necessity of condition (3°) are immediately evident from
[III '] and [I].
(As
to (1°) and (2°), see also R. Solow [47], p. 32, p. 37).
00
Sufficiency of condition (3°):
Suppose that
Lam diverges. Then,
by [III '] ,
m=Q
a
must be
decomposable
and, for
some A.
in (1.33),
all
column-sums are equal to
1. If
i = 1, let
Al
= A(l).
If i t -
1: A
l
. ,
. . .
,
A.
1 . are all zeromatrices
'I. '1.- ,'I.
(otherwise, at least one column-sum in the i-th block of columns of a
must be
greater than 1).
Hence
we can remove A in (1.23) to the upper
left
corner by
some
simultaneous permutation of rows and columns, without losing the character
of the
form
(1.33).
Then
we
let
A. =
A (1).
'I. n
In
either case,
a
is decomposable
into
the
form
(1.34).
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17
(3°)
In
case some
column-sums
are equal to 1 and some
less
than 1,
00
L
am
converges
if
and
only
if
a
is
not decomposable into the
m
following
form (by
some simultaneous permutation of
rows
and
columns) :
[
~ l )
A(l2) ]
A(2) ,
where all column-sums
of A(l)
are equal to 1.
(1. 34)
The
assertions (1°) and (2°) in this proposition have nothing to do with the
decomposability of a. And as for (3°),
i t is
the
particular
and not the general
decomposability
which
matters.
To
be
precise, condition (3°) includes two cases: the case
where a is
indecomposable and the case
where a is
decomposable, but not into the form (1.34).
Now,
let
us
return to our model. We may assume that the matrices
A, V
and e
in the preceding sections have the following properties [pl] - [p4].
n
l
[pl]
L a .
+
L v
k
· = 1
i=l
1.-J
k=l
J
( j
1, 2,
. . .
,
n)
l '
n
[p2]
L v
k
·
> 0
or
La ..
< 1
( j
1, 2,
. . .
,
n)
k=l
J
i=l
1.-J
n
[p3]
LVkj
> 0 (k
1, 2,
00 . ,
1')
j=l
[p4] (k = 1, 2, . . . , 1'), where a
k
These assumptions are reasonable from an economic standpoint.
(A
generaliza-
tion of [pl]
is
to be examined later).
The existence of B = (I = A)-l
is
guaranteed
by
[p2J (See Lemma 2 (1°)). As
A, V
and
e
are respectively non-negative,
n
x
n, l
x
nand n
x
1',
matrices, VEe =
L
=
(Zk
) and A + ev = Q = (q .. ) are also respectively non-negative,
l
x
l
and n x
n,
v 1.-J
matrices, and the following
equalities
hold:
Lemma 3.
l
00) L Zkv
k=l
=a
V
(v
1,2,00 ' ,1 ' )
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18
n
(2°)
I q . .
=
1
i=l
1-J
1 , 2 , . . . ,n ) .
From
the
equalities
and [p4]:
C o ~ o ~ y
Land
Q are Leontief-type.
2)
Convengenee C o n ~ O n 6 ~ n ~ h e Model
We can now consider the convergence properties of the propagation process in our
model.
' '
T h e o ~ e m
1.
The
convergency of
I
Lm
coincides with
that
of
I ~ .
m=O
m=O
= jn. Thus, R is also Leontief-type. Since I
+
R . . •
+
= I
+ C(I +
L
+
•••
m-l)
m m
+
L VB, the convergency of IE and that of are equivalent. Next,
from
Lemma
1,
Ign
and IQm converge
if
and only if
I
I - R
I
f 0
and I
I -
Q I
f 0,
respectively.
And, since I - Q = I - A - CV = (I - CVB) ( I - A), I I - Q I = I I - R I· I I - A
I ,
where
always I I - A I f O. Hence I I - Q I f 0 and I I - R I f 0 are equivalent.
This
means that I ~
converges
if
and only if
I ~
converges, and therefore
if
and only
if
IL
m
converges.
A simultaneous permutation of rows and columns in
A, reflecting
a change in the
order of industry groups, induces a permutation of the
columns
in V and that of the
rows in C. On the other hand, a permutation of
rows
in V, reflecting a change in
the order of income groups, induces a permutation of
columns
in
C,
and conversely.
For brevity, we call the former I-permutation and the latter II-permutation.
Then, as a convergence condition of
I ~ we
have:
n
T h e o ~ e m 2. Let a
k
= I a.
k
i=l
1-
(k
=
1,
. . . , X')
be the total propensities to consume of income groups.
(1
0) If all
a
l
, . . . ,
aX
are 1ess than 1, then I ~ converges.
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19
(2°) If 01 = . . .
=
0 p
=
1, then LQ diverges.
(3°)
In
case some of ok (k =
1,
. . . ,
p)
are equal to 1
and
some less than
1,
LQ
converges
if
and only if A, V and C are not decomposable
by
any 11- and
I-permutations sumultaneously into the following respective forms:
A =
c =
(1.35 )
V
=
where 0 < h <
n,
0 < 8 < P , and all column-sums of C
l
are equal to 1.
n
Proof. From Lemma.
3 ,
(2°), Lq
. .
= 1
if
and only if
i= 1
1.J
(k = 1, . . . , p)
(1°)
ok < 1 (k = 1, . . . , p):
Suppose that
there exists a number j such
that
n
L
q
•. = 1. Then v
l
. =
.•.
= v . = 0 from (i). This contradicts [p2]. Hence,
i=l 1.J J PJ
n
L
q
.• < 1 for all j , and therefore LQ converges (Lemma. 2, 1°).
i=l 1.J
n
(i )
(2°) 01 = . . . = = 1: As equation
( i )
holds for all j, L
q
. . = 1 ( j =
1,
. . . , ~
" i=l 1.J
Thus,
LQ
diverges from
Lemma.
2 (2°).
(3°) A simultaneous permutation of rows and columns in
Q
induces a I-permutation of
A, V and C only, and conversely. A II-permutation leaves
Q
unchanged. Therefore
LQ
converges, from
Lemma.
2. (3°),
if
and only if Q is not decomposable by any I-permuta
tion of A, V and
C, into
the following
form:
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20
where
all
column-sums
of
Q
1
are
equal
to 1,
0 <
h
<
n.
(i i)
We
shall prove that Q is decomposable into (ii)
if
and only if A, V and Care
decomposable into the respective forms represented in (1.35).
Let Q be
decomposed
into (ii). By a
suitable
II-permutation, without changing
Q,
we
may take
(O< t
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21
The condition in (3°) of this theorem contains the following two cases:
(a) A is indecomposable, (b) A is decomposable, but not into (1.35) together with V
and C simultaneously.
As a consequence we have
Corollary
1. In the case where some c
l
' . . . , c
r
are equal to 1 and some less
than 1, L ~ comverges if A is indecomposable.
So we can treat Kalecki 's Model as a special case of o n o L t ~ y 1, where
n
= 1,
r
=
2.
According to
Theonem
1,
we
have
o n o L t ~ y 2. The convergence condition of L ~ given in Theonem 2 is also
that
of
LLm.
In
addition, from [I] we
have
o n o ~ y 3.
A necessary
and
sufficient condition that, for
any
f 0, the
equation
(I
-
Q)X
= f has a non-negative solution coincides with
the convergence condition given in
Theonem
2.
The zero parts of
A,
V and C in (1.35) may
be
as large, but
no
larger as V
2
and C
l
will vanish in
view
[p3] and [p4].
Moreover, we may adopt a
more
general assumption than [pl]:
n
r
[pl' ]
La . . + LV
k
· 1.
i=l
7-J k=l J
Then, the
possibility
of
L ~
diverging
becomes
more
limited: (1°) in
Theonem
2
remains
true,
but (2°) no longer holds.
As
for (3°), the given condition is a suf
ficient,
but not a necessary one.
20
)
20) One case represented
by
assumption [pl '] is an open economy with foreign trade.
As
shown in Section III, in the case of a
c i o ~ e d economy
with no foreign
trade,
the conclusion
that
income
has different
values depending on the proportion of
final demand can be derived only
by
introducing the
structure
of income distri
bution.
But
in the case of
an
open
economy
with foreign trade the
same
conclu
sion can
be
derived without introducing the distribution
structure,
because the
coefficients on
the production side enter
into
the income-formation process
through imports. For the
open
economy model, refer to Chapter 3.
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CHAPTER
2
INPUT-OUTPUT ANALYSIS AND INTERRELATIONAL INCOME MULTIPLIER AS
A MATRIX*
I .
rntnoduction
As
an
extension of the input-output
analysis,
we have introduced in the previous
chapter a
new
concept
which might
be called the
interrelational income
multiplier"
in matrix
form.
It
was
designed to analyse the
interrelationships
among various
income-groups in the process of income formation, and in this respect i t
tells
us
how
much
of one group's
income is
generated
by
another group's expenditure from one
unit
of additional income via the
medium
of
industrial
production activity. Although this
multi-sector
multiplier
follows from Leontief's "interindustry matrix
multiplier ,
i t
is formulated
by
the inclusion of the income generation process,
which is
omitted in
the standard input-output open model, and
by
projecting the
multiplier
process into
the income-determination side
rather
than the output-determination side.
Our extended model contains a theoretical implication not found in the Keynesian
model
nor
in the standard Leontief input-output model. In the Keynesian income-
determination
multiplier model,
the same amount of autonomous expenditures cannot
have different effects on the level of national income, even
though
the expenditures
have different
commodity proportions. The same restriction holds for extended
models
incorporating income-distribution-factors, such as the Kalecki-Kaldor type, in so
far
as
there are
no
changes in the
relative
shares of
income
and
in the propensities to
consume of each income group. Similarly, in the Leontief input-output model, al
though
the outputs of industries vary depending on the proportions of autonomous
expenditures, the
total income is
independent of the composition of autonomous ex-
penditure. This result also holds in the case
where
household consumption expendi-
ture
is
treated as
an
endogenous
variable,
in
so
far as
we retain
the assumption
that
* This is a
slightly
revised version of the empirical application part of
article
which
was originally
published, under the same t i t le, in
H i t a ~ u b a h i
o ~ n a t 06
Eeanomic6, Vol. 8 No.2,
Feb.
1968.
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the level of
income
and its use do not
depend on
the composition of production.
l
) In
the real world. however. autonomous expenditures of equal amount. but having differ
ent
commodity
compositions. appear to have different effects on income formation.
In
order to have an input-output model in which the value of income differs depending on
the proportions of
autonomous
demand.
i t
is necessary to introduce not only endoge
nous consumption in disaggregated form. but also the structure of
income
distribution
by
the type of income-group as
well as by
the tupe of industrial value-added. This
is exactly what our extended model accomplishes.
In
this
chapter
we
shall see whether or not our extended
model
is
consistent
with facts. We shall use the
model
to interpret input-output and
related
empirical
data.
I I .
Fotunula.tion
06
a Regional.
Inc-arne Au£.;t[p'ueJt in
;the
60tun 06
a MabUx
An
application of our model
is made
for interregional income-distribution.
Our
model is thus reformulated in a form
suitable
for this purpose. However. the gener-
al model itself is applicable to the study of class-distribution or size-distribu-
tion of
incomes
as well. The
ommision
of the
income
formation process in input-
output analysis
is
especially unwarranted in the interregional
interindustry
case.
because the location of production depends on
the location of consumption.
and
the
latter
cannot be determined separately from the calculation of
income
generated in
each region.
Let us divide k regions into n industry
sectors.
and express the coefficients
of the model as follows:
A =
[{jJ
... the nk x nk matrix of interregional input
coefficients.
~ ~ the amount of ith commodity produced in region r for
use
of 1
1.-J
unit
of output of the jth industry in region s
(i.
j
=
1. 2 •
. . . .
n;
r,s=1.2, . . . , k ) .
1)
This
is
true in the case of a closed economy with no foreign trade
and
government
activities. But in the case of
an open
economy with foreign trade and government
activities,
the same conclusion does not hold, because the composition of produc
tion plays a part in the
income
formation process through imports, subsidies and
taxes. .
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v =
[ y ~ S J . . .
the k x nk matrix of value-added ratios of household sectors
J
in each region.
the income of a household in region r earned from 1
unit
of
J
production of the
jth
industry in region
S (j
= 1,2, . . . , n;
r , s = 1 , 2 ,
. . . , k ) .
the nk x k matrix
of coefficients
of regional consumption
expenditure.
rs
c
i
the consumption expenditure for the ith
commodity
produced in
region r
from
1
unit
of
income
earned in
s region's
household
sector
( i =
1,2, . . .
, n; r , s = 1,2 , . . . , k).2)
Using
the nk x nk matrix of the usual Leontief
interindustry
inverse:
B
= [I -
Ar
1
= [ b ~ ~ J
1.-J
(2.1)
the corresponding earnings by the household sectors in each region are easily deter-
mined as follows:
~
rs sr]
VB=
lv.b . . ,
• J J1.-
,s
(2.2)
which forms the k x nk matrix of coefficients showing induced income earned from
production activities among
industries
and regions. On the other hand, the induced
production
due
to endogenoU4 consumption per 1 unit of income in each
region's
house-
hold sector is given as the following nk x k matrix:
Be =
r b ~ ~ C x : s J
Lz:,r
J1.-
1.-
(2.3)
Joining these two expressions,
we
get the following square matrix:
(2.4)
2)
Instead of
this definition,
if we denote byeS the
total
propensity
to
consume in
region
s, and by h ~ s
the consumption-allocation
coefficients
for the ith
commodi-
1.-
ty produced in region r , then
we
get e h ~ s = cX:
s
1.- 1.-
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since the multiplication of rectangular and square matrices V,
Band
C makes a
new
k x k square matrix whose order is
equal
to the number of regions. This square
matrix
L
may be interpreted
as
an array of coefficinets
which
shows the interrela
tionships among
incomes
of various regions through the process of propagation from
consumption
expenditure in
each
region. Its elements
Zrs
show
how
much income in
region r is generaged by the expenditure
from
1 unit of additional
income
in the
region
s.
Of course, the
income
propagation process does not terminate
after
the
one
round
of inducement indicated
by
the
coefficient
matrix
L,
because the next
round
of
earnings will be generated as a result of the production activity induced by the ex
penditure from the preceding
round
of additional
incomes.
This has come to
be
known
as the "successive income generating process". Ultimately, such a successive reper
cussion process naturally leads to the intersectoral income multiplier among regions
of the following type:
K =
[I -
Lr
1
=
[krsJ.
(2. 5 )
The matrix K will be called the interrelational regional income multiplier matrix".
This matrix
shows
the direct and
indirect
income-generaged per unit of
income
region
ally originated, where, of course, I is the identity matrix having the order of
k x k.
Denote by X a
column
vector of nk order whose elements are output of n indus
tries in
each
region, and
by
Y a column vector of k order whose elements are incomes
of the household sector in
k
regions. Let
f
stands for a
column
vector having
nk
order of final
demand
other than
endogenous
consumption expenditure, and
g
stands
for a column vector having k order of exogenous
income. Then we have
the following
system:
(2.6)
As
shown
in Chapter 1, solving this system for X and Y, we get
=
~ [ I
; ~ K V B J
I
iKJ
~ J
(2.7)
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III. The
I n t ~ e l a t i o n a l Income M u t t i p t i ~ among
R e g ~ o n
An empirical application of our
model
is made for a three-region view of the
Japanese economy by utilizing the large 1960 interregional input-output table pub
lished in 1966 by MITI (the Ministry of International Trade
and
Industry). The table
required
more
than three years of preparation prior to its publication. For analyti
cal purposes, the original data tabulated in 9 blocks and 25 industrial sectors
was
aggregated into three regions and 25 sectors. All estimations of parameters and
other calculations for our
model were
done under the cooperation of the MITI-staff,
t