1 the vessel buyback program and its impact on the offshore fishery in taiwan jenny chin-hwa sun,...
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The Vessel Buyback Program and its Impact on the
Offshore Fishery in Taiwan
Jenny Chin-Hwa Sun, Ph.D.Professor and Director
Institute of Fisheries Economics, National Taiwan Ocean Univ.
INTERNATIONAL WORKSHOP ON FISHING VESSEL AND LICENSE BUY-BACK PROGRAMSMarch 22-24, 2004, La Jolla, California
Southwest Fisheries Science Center and the Office of Science and Technology, NOAA Fisheries (NMFS); CERUM and Department of Economics, Univ. of California, San Diego
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I. Introduction
In 2002, the total marine fish landing in Taiwan reached 1 million metric tons with a total value around US$2 billions.
Around 72.7% of the total landing value is generated by the distant water fishery with only 1,297 vessels, which are mostly greater than 100 gross tons and account for only 4.8% of the total fishing vessels in Taiwan (Table 1).
The total number of fishing vessels in 2002 is 26,994 and there are 15,741 fishing rafts (built with plastic pipelines) and sampans (small boat without fixed engine), which are mostly equipped with gill net, are the major fishing gears in the coastal region.
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0
1,000
2,000
3,000
4,000
0-10 10-50 50-100 100-200 200-500 >500
Number of Vessels by Tonnage Class
Figure 2. Fishing Vessels by Tonnage Class in Taiwan(2002)
By excluding the fishing rafts and sampans, there are only 9,453 vessels left and 86% of the vessels are less than 100 gross tons, which are devoted to offshore fishery.
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0
500
1,000
1,500
2,000
2,500
3,000
Tuna LongLine
Trawl Torch Light Net
Pole & LineBoote
Gill Net OtherOffishore/Costal
Fisheries
Number of Vessels by Fishing Gear
Figure 1. Fishing Vessels by Fishing Gear in Taiwan (2002)
Most of the vessels operated as tuna long line fishery, trawl, and torch light net.
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The offshore and coastal fisheries only account for 19.9% and 7.3%, respectively, of the total landing value in 2002.
Since 1978, the offshore harvests follows a downward trend, but the number of fishing vessels, the total vessel tonnage, and the total horsepower follow an steady increasing trend until 1992 when the overall restriction on the construction of fishing vessels was imposed.
With a great number of fishing vessels competing in the same area, overfishing occurred both in the offshore and coastal fisheries.
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In order to maintain the sustainability of Taiwan’s offshore fisheries stocks and to avoid overfishing, the government has implemented a fisheries management policy which regulates harvests by suspending fishing licenses, restricting construction of fishing vessels, and buying back used vessels in order to reduce the offshore fleet size.
Furthermore, a major revision of the Fisheries Act in 1991 gave the government the explicit right to adjust the fishing effort according to resource abundance. Four amendments that regulate the number of offshore fishing vessels in Taiwan were enacted in 1967, 1980, 1989, and 1991.
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The most recent measure, announced on Dec. 24, 1991, which is still in effect, restricts the construction of all fishing vessels, except for fish transport vessels over 2,000 tons.
The government adopted two voluntary vessel buy back programs in 1991-1995 and 2000-2004, respectively.
2,319 vessels with 118,354 gross tons were bought back during 1991-1995 and the total government expenditure reaches NT$1,721 million (US$52.16 million).
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8Figure 1. Structure of Powered Fishing Vessels of Offshore Fisheries (1953-2002)
0
50
100
150
200
250
300
350
400
1953
1955
1957
1959
1961
1963
1965
1967
1969
1971
1973
1975
1977
1979
1981
1983
1985
1987
1989
1991
1993
1995
1997
1999
2001 Year
Production (1,000 M.T.)Vessel Tonnage (1,000 Ton)Number of Vessels (100 Vessel)Horse Power (10,000 H.P.)Catch per Ves. Ton (M.T./0.5Ton)
Restricts the construction of all fishing vessels in 1991
Buy back programs in 1991-1995 and 2000-2004
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-
100
200
300
400
500
600
700
1991 1992 1993 1994 1995 2000 2001 2002 2003Year
Million NT$
0
200
400
600
800
1,000Vessels
Amount (Million NT$)
Number of Vessels
Figure 4. Government Expenditure on Vessel Buyback Program(1991-1995 and 2000-2003)
2,319 vessels with 118,354 gross tons were bought back during 1991-1995 and the total gov’t expenditure reaches NT$1,721 million (US$52.16 million).
The purchase price of the vessel is based on price per gross ton which is around NT$14,552 per vessel tonnage (US$441/ton) in 1991-1995.
Even though the second phase buyback program initiated in 2000 which offers NT$18,000 (US$545) to buy back the vessel per ton, only 5 vessels accept the offers.
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Hence, a new scheme in the 2001 buyback program was to set up a scheme to increase the price per gross ton to NT$50,000 for vessels less than 5 gross ton.
(1) NT$50,000 for vessels less than 5 tons; (2) NT$40,000 for vessels between 6 to 10 vessel ton;(3) NT$30,000 for vessels between 11 to 20 vessel ton;(4) NT$20,000 for vessels between 21 to 100 vessel ton,(6) NT$18,000 for each gross ton for vessels over 100 vessel ton.
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However, the second stage buy back program implemented in 2001 was still not very successful as fishermen under rational expectation were holding out in waiting for higher payment scheme to be introduced in the near future. Only 28 vessels were bought back in 2001.
This prompted the government to announce a new payment scheme in 2002 designed to speed up the buy back by offering a higher amount in 2002 but the amount would decrease in the subsequent years as follows:
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For example, if purchased as the year indicated, then it follow different price scheme as follows,
NT$70,000 in 2002, NT$60,000 in 2003, NT$50,000 in 2004
for each gross ton for vessels less than 5 tons;
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(2) NT$60,000 if purchased in 2002, NT$50,000 in 2003, and NT$40,000 in 2004 for each gross ton for vessels between 6 to 10 vessel ton;
(3) NT$50,000 if purchased in 2002, NT$40,000 in 2003, and NT$30,000 in 2004 for each gross ton for vessels between 11 to 20 vessel ton;(4) NT$40,000 if purchased in 2002, NT$40,000 in 2003, and NT$25,000 in 2004 for each gross ton for vessels between 21 to 50 vessel ton;(5) NT$40,000 if purchased in 2002, NT$30,000 in 2003, and NT$20,000 in 2004 for each gross ton for vessels between 51 to 100 vessel ton.(6) NT$40,000 if purchased in 2002, NT$30,000 in 2003, and NT$18,000 in 2004 for each gross ton for vessels over 100 vessel ton.
(7) The total payment per vessel will not exceed 9.5 million for any vessel purchased, in 2002, NT$8.5 million, in 2003, NT$ and 7.9 million, in 2004.
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0
10
20
30
40
50
60
70
80
0-10 10-20 20-50 50-100 100-200
2000 2001 2002 2003
Number of Vessels by Tonnage Class
Figure 4. Number of Vessels Bought Back by Tonnage Class inTaiwan (2000-2003)
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15
0
20
40
60
80
100
120
140
Long Line Trawl Gill Net Miscellaneous
2000 2001 2002 2003
Number of Vessels by Fishing Gear
Figure 5. Number of Vessels Bought Back by Fishing Gear in Taiwan(2000-2003)
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0
20
40
60
80
100
120
140
160
North East South Remote IslandsRegion
Figure 6. Number of Vessels Bought Back by Region in Taiwan(2000-2003)
Number of Vessels in Various Regions
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2. Economic Performance of Offshore Fisheries and Aquaculture
Since the offshore Fishing vessels are mostly smaller than 100 tons, which are mostly owned by individual. Some of these small-scale, individual vessels switch back and forth between two or more types of fishing gear, according to season and target species.
The cost and revenue data for the different tonnage classes of offshore fishing vessels were obtained from the database released by the Annual Economic Survey of Offshore Fisheries and Aquaculture (Taiwan Fisheries Bureau, 2001).
The revenue and cost data are used to approximate the revenue-cost ratios for fishing vessels in the different tonnage classes.
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Tonnage Class
Average Yield per
Vessel Ton
(Kg./Ves. Tons)
(O)
Average Revenue per
Vessel Ton
(NT$/Vessel Tons)
(A)
Average Cost
(NT$/Vessel Tons)
(B)
Average Variable
Cost
(NT$/Vessel Tons)
(C)
Revenue-
Cost
Ratio
(D=A/B)
Short Term
R-C
Ratio
(E=A/C)
Percentage of
Total Ton
(F)
under 5 2,362 188,442 136,136 81,242 1.38 2.31 5.16%
5 - 10 2,339 146,777 121,037 81,081 1.21 1.81 8.42%
10 - 20 1,972 135,705 121,214 83,813 1.11 1.61 19.67%
20 - 50 1,523 99,349 88,731 65,943 1.11 1.5 58.16%
50 - 100 1,226 69,993 68,187 40,498 1.02 1.72 8.59%
Weighted
Average
1,698 112,569 98,522 69,336 1.14 1.62 -
Table 2a. Offshore Fisheries Production, Revenue,and Cost in Taiwan, 1992
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Table 2. Offshore Fisheries Production, Revenue, and Cost in Taiwan, 2002
Average Yield per
Vessel Ton
(Kg./Ves.
Tons) (O)
Average Revenue per
Vessel Ton
(NT$/Vessel Tons)
(A)
Average Cost per
Vessel Ton (NT$/Vessel Tons) (B)
Average Variable Cost per
Ves. Ton
(NT$/Vessel Tons) (C)
Revenue-Cost
Ratio
(D)
Short Term
Revenue
-Cost Ratio
(E)
Percentage of
Total Ton
(F)
under 5 Tons
1,506 259,600 196,000 136,000 1.32 1.91 2.94%
5 - 10 Tons
2,276 183,467 157,333 124,667 1.17 1.47 4.38%
10 - 20 Tons
1,342 146,600 134,600 109,200 1.09 1.34 11.05%
20 - 50 Tons
1,612 126,000 116,857 91,371 1.08 1.38 35.32%
50 - 100 Tons
1,867 89,640 80,307 64,587 1.12 1.39 46.31%
Weighted Average
1,726 117,883 105,991 83,709 1.11 1.40 -
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3. Estimates of Optimal Number of Fishing Vessels
What's the optimal number fishing vessels to regulate?How's the effectiveness of vessel reduction program?How's the impact on the long term wealfare of fishermen?
Sun, C.H. 1998. Optimal Number of Fishing Vessels for Taiwan’s Offshore Fisheries: A Comparison of Different Fleet Size Reduction Policies. Marine Resource Economics 14:275-88.
to build a empirical production function to estimate the MSY and to investigate the operating cost and per unit price of production in order to estimate the MEY, and OY.
to simulate the short, intermediate, and long run policy effect of the limit license and vessel retirement program.
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III. Model SpecificationThis study specifies a generalized harvest function which permits
the estimation of an unconstrained Cobb-Douglas production function (Comitini and Huang 1967; Hannesson 1983; Tomkins and Butlin 1975; Tsoa, Schrank and Roy 1984):
(1)tt
q
ttttXEA)E,X(HY
tY
tA
tE
tX
where : offshore fisheries harvest in period t, : offshore fisheries technological effeciency in period t, : offshore fisheries fishing effort, which is defined as total vessel tonnage of the offshore fisheries in period t, : an assessment of offshore fisheries resource stock , , and are parameters, , , .
q
10 10 10
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The dynamic movement of the fisheries resource stock is,
(2)
where r is the intrinsic growth rate, and K is the environmental carrying capacity.
1t
1t
1t1t1t1t1ttY)
K
X1(rX)E,X(H)X(GXX
Suppose the error term is multiplicative normal, then the empirical model is specified as follows: (5)
t1t
2
1t
q
1t
1t
1
1t
q
1t
1t
tttY)
EA
Y(
K
r)
EA
Y)(r1(lnElnqnAYln
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Estimating Maximum Economic Yield and Optimal Yield
Suppose that the offshore industry net benefit is specified as: (6))Y,C(X-)Y,R(X=)Y,(X tttttt
The problem of maximizing industry net benefits over time becomes: (9)
with a current value Hamiltonian as defined by:
(10)
0
tttt1t
T
0tttt
t
X=X(0)
)E,X(H)X(GX-X s.t
)cE)E,X(pHMAX
]Y)X(G[u)Y,X()u;Y,X(H tttttt
~
where u is the shadow price which represents the marginal return of the slackness of the resource constraint.
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Under a steady-state equilibrium, the first order conditions of the optimal yield solution, XOY and EOY, are defined to satisfy the following two equations:
(11) and
(12)
cpH
cH)X(G
E
X
0)E,X(H)X(G
The implicit function which defines XOY and EOY in (11) and (12) can be simplified as: (13)
0)E,X(f
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Table 3
Comparison of the Estimates of the Offshore Fisheries Production, Vessel
Tons, Resource, and Aggregate Profit under Actual Production in 1993,
MSY, OY, and MEY in Taiwan
Estimates
Production in 1993
MSY
OY
MEY
Production (Tons) 201,157
236,221
209,238
197,569
Vessel Tons (Tons) 164,447 100,800 51,742 43,012
Resource (Tons) 900,991 1,522,977 2,029,991 2,132,991 Profit
(NT$1,000) -2,865,944 5,735,164 8,773,708 8,860,209
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26Figure 1. Estimates of MSY, MEY, and OY of the Offshore Fisheries in Taiwan
-400
-200
0
200
400
600
800
1,000
Fisheries Resource(Thousand Tons)
Production: Y (Thousand Tons)
Profit (NT$ Ten Million)
OY Equation: f (X , E)
XMSY XOY XMEY
Profit
Production
OY
300020001000
Thousand TonsNT$ Ten Million
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(1) Evaluation of the Effectiveness of the Vessel Retirement and Buy Back Program
Scenario 1. If the government did not apply the vessel
retirement and buy back program in 1991, which serves as a base Scenario.
Scenario 2. Assume that the government applies the vessel retirement and buy back program from 1991 to 1993.
Both the fisheries stock and fisheries harvests decline steadily under the base case. A passive vessel retirement and buy back program is determined to be an ineffective resource stock recovery program.
Policy Simulations
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(2). Evaluation of Long-run Equilibrium Vessel Reduction Scenarios Suppose that starting in 1994, the government had implemented a vessel reduction program aimed at maintaining fisheries harvests at MSY levels.
Suppose that fishing effort and total vessel tonnage are fully adjusted to effort under MSY level giving that horse power is held at 1993 levels.
Five different long-run equilibrium vessel reduction scenarios present themselves:
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Table 4. Net Present Value of Profit in Simulations (1) Effectiveness of the Vessel Retirement Program and (2) Evaluation of Equilibrium Vessel Reduction Scenarios
Simulations
(Million NT$)
(1) Effectiveness of the
Vessel RetirementProgram (1990 to 2003)
(2) Evaluation of Equilibrium Vessel Reduction Scenarios (1993 to 2008)
Scenarios S 1 (Base) S 2 S 1 S 2 S 3 S 4 S 5
Net Present Value of Profit
-62,840
-33,052
18,144
(1 Year)
6,316 (5 Y)
-1,144 (10 Y)
-7,815 (15 Y)
-26,705 (Base)
Net Present Value of Short term Profit
3,562
23,617
48,125
40,034
35,177
30,982
19,177
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The government in Taiwan had instituted a comprehensive program to remunerate fishermen for voluntarily reducing fishing effort in accordance with the bulletin of “In reward for closing fishery season procedure” since Sep. 2002.
The program has been running with an annual budget of approximately US$12 million. All kinds of fishing vessels that covers all ocean fisheries in Taiwan with valid fishing licenses, except illegal recreational and over 30 years vessels.
The vessels shall have 100 days of fishing activities and sum 120 days of suspending fishing activities in the fiscal year.
The reward will be even higher if the vessels have 100 days of fishing activities and continue 60 days of suspending fishing activities in the fiscal year.
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To date, the program has not been very successful, as the payments offered to fishermen for curbing fishing activities are so low which are not sufficiently attractive and there are only 21% of the vessels are voluntary to fulfill the requirement.
With a great number of fishing vessels from Mainland China competing in the same area, we believe that one way to make the program work is to restrict it to a few selected fisheries with special environmental and resource considerations. By concentrating rewarding on certain few species, the program could be redesigned to provide sufficient incentives to reduce the effort further.