www.economicsnetwork.ac.uk using games and classroom experiments in learning economics six examples
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Using Games and Classroom Experimentsin Learning Economics
Six examples
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Tell me and I will forgetShow me and I will rememberInvolve me and I will understandStep back and I will act
(Chinese proverb)
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I've taughtSnoopy to
whistle
I can'thear himwhistle
I said that I'dtaught him, not that
he'd learned
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Using games and experiments
• Learning by doing
• Fun
• Students encouraged to consider its relevance
• Helps in seeing the applicability of economics beyond the strict context of a model
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Games, experimentsand role playing in PBL
• Strengths
– motivation, involvement, empathy, fun!
– encourages active and deep learning
– illustration and contextualisation
• Potential weaknesses
– over-simplification
– not taken seriously
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Games, experimentsand role playing in PBL
• Overcoming the drawbacks
– clear guidelines
– feedback and reflection
– drawing on concepts in later classes
– linked to seminar activities
• The Exeter FDTL5 project (link)
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Game 1: A trading game
• Students divided into buyers and sellers• Students given cards
– Black for sellers of the item• Number on card gives cost of item in £s• Want to sell above value of card
– Red for buyers of the item• Number on card gives value of item in £s• Want to buy below value of card
• Trading takes place– Individual buyers and sellers agree prices– Mark their gain on their sheet– No deal gives no gain or loss
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Game 1: Reflections
• Students get considerable insight into the working of pit markets
• Equilibrium prices rapidly emerge
– Can vary the cards to see the effects on equilibrium
• Easy to demonstrate producer and consumer surplus
• Can discuss information issues
• Can introduce a tax of £x on suppliers
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£2 tax imposed on sellers
(b) One we tried earlier(b) Potential gains
An 18 player game
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www.whystudyeconomics.ac.uk
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www.whystudyeconomics.ac.uk
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Game 2:Expected value game
• TV show: Deal or No Deal?– Channel 4, six days per week (45 mins)
• US version playable online (link)
– 26 people each with a suitcase of money, the amount not known to them
• Sums of money vary from 1¢ to $1,000,000
– One contestant us selected to play• … who eliminates suitcases in batches, whose
contents are then revealed
• After each batch, the contestant is offered a ‘Deal’ by the ‘Banker’, based on the values yet to be eliminated
• The contestant chooses ‘Deal’ or ‘No Deal’
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Game 2: Reflections
• Virtually all students will be familiar with the game
• Easy to set up:– It can be played online
– Or with envelopes and the sums of money on the whiteboard
• Illustrates decision-making under risk– Expected value; risk premia; probability;
risk attitudes and what affects them
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Game 3:Production function game• Activity
– Production runs (2) in a factory, involving moving balls from one place to another
– Extra workers are added one at a time
• Equipment:
– About 30 balls (e.g. tennis balls)
– 4 buckets (or baskets or cardboard boxes)
• Students divided into two teams
– Object to get as many balls from one end to the other in 30 seconds
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Game 3: Reflections
• Easy to set up and fun to play– Can bring alive a potentially dry subject area
– Flexible: can be played with 1, 2 or more teams
• Can demonstrate– Diminishing returns
– TP, AP and MP
– Can derive TC, AC, MC, TR, AR, MR and Profit
– Shifts and movements along product and cost curves from technological change
– Effects of changing fixed and variable costs
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Game 4:Public goods game
• Aim– Aim is to make as much money as possible,
irrespective of what others make
• Activity– Each person (or pair) is given four cards of the
same value (e.g. four threes or four queens)
– Each person plays two cards each round
• Scoring– Black cards have no value
– Red cards are worth £1 for everyone if played and £4 just to the individual if not played.
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Game 4: Reflections
• Very easy to set up and fun to play
– Can easily be played in a seminar
– Flexible: can be played with up to 13 individuals or pairs
• Can demonstrate
– Public goods and external benefits
– Prisoners’ dilemma and Nash equilibrium
– Collusion versus competition
– Motivation and altruism
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Game 5:Auctioning a pound coin
• Activity
– This is a simple auction of a pound coin
– The only difference is that both the winner and the next highest bidder have to pay
• At the end
– The money earned can be returned to students (but don’t tell them this at the start).
– A discussion can then take place about the issues raised
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Game 5: Reflections
• Simple and flexible
– Simple equipment: a pile of pound coins and a sheet for recording results
– Can be played in a seminar group
• Can demonstrate
– Sunk costs and marginal costs
– Risk attitudes
– Collusive bidding
– Concepts of equity
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Game 6: A ‘Keynesian Beauty Contest’
• A game about investor expectations– predicting share prices based on what you think
other people will do
• Simple to play– No equipment required other than:
• a calculator for the tutor
• a whiteboard/flipchart for recording results
• The game (each round)– Students have to select a number from 0 to 100
– A prize is given in each round to the student who selects a number closest to 2/3 of the mean
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Game 6: A ‘Keynesian Beauty Contest’
• Each person of N-players is asked to choose a number from the interval 0 to 100.
• The winner is the person whose choice is closest to p times the mean of the choices of all players (where p is, for example, 2/3). The winner gets a fixed prize (e.g.a chocolate).
• The same game should then be repeated for several periods. Students are informed of the mean, 2/3 mean and all choices after each period.
• Students should write down each time (or at the end) a brief comment about how they came to their choice.
• Time to think in each period: about 3 minutes
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Game 6: Reflections
• Link1 Link 2
• At the end
– Students can be asked to explain their decisions
• Can demonstrate:
– Expectations formation
– Iterative thinking / progression
– Movement to Nash equilibrium
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References
• Classroom Expernomics
– http://www.marietta.edu/%7Edelemeeg/games
• Charlie Holt’s Games papers– http://www.people.virginia.edu/~cah2k/papers.html
• Charlie Holt’s Veconlab
– http://veconlab.econ.virginia.edu/admin.htm
• Bringing Economic Experiments into the Classroom (FDTL5 project: Univ. of Exeter)– http://www.economicsnetwork.ac.uk/projects/fdtl5/experiments.htm