Design of a Worldwide Public Good Game Experiment
A global experiment was designed to study cooperation using a ten-round public good game. In this game, anonymous participants were randomly assigned to small groups, usually of four. For each round, every player was given a $20 endowment and could choose how much to contribute to a common pool. This pool functioned as a public good, where every dollar contributed yielded a $0.40 benefit for all group members, including the one who contributed. A key feature of the design was that after each round, players were informed about the contributions made by the other members of their group.
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Ch.4 Strategic interactions and social dilemmas - The Economy 2.0 Microeconomics @ CORE Econ
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Design of a Worldwide Public Good Game Experiment
Benedikt Herrmann
Christian Thoni
Simon Gachter
Science (Journal)
In a public goods experiment, four participants are each given $20 and can contribute any amount to a group project. For every dollar contributed, each of the four members receives a $0.40 return. After contributions are revealed, participants have the option to pay a small fee to reduce another player's earnings. Player 1 contributes $18, Player 2 contributes $15, Player 3 contributes $16, and Player 4 contributes $1. After seeing these results, Player 4 pays a fee to reduce Player 1's earnings. Based on experimental findings from a large cross-societal study on this topic, what is the most accurate classification of Player 4's action?
Critique of a Cross-Societal Public Goods Experiment
Consider an economic system where the state owns all major means of production, such as factories and machinery. The state leases this equipment to private individuals who then hire workers in a competitive labor market and sell the resulting products in a competitive goods market, aiming to make a personal profit. Based on the core institutional definition of an economic system centered on private property, markets, and firms, why would this system not be classified as capitalist?
Interpreting Punishment Patterns in Public Goods Games
Predicting Punishment Behavior in a Public Goods Game
A large-scale economic experiment was conducted in cities around the world. In the experiment, groups of four anonymous individuals played a game for ten rounds. In each round, players received an endowment and could contribute to a group project. After contributions were revealed, players had the option to pay a fee to reduce the earnings of other players. What was the primary research objective of comparing the results from the different cities?
In a large-scale public goods experiment conducted across many different societies, it was found that giving participants the ability to financially penalize others after observing their contributions consistently increased the overall level of cooperation in all societies studied.
In a public goods experiment, participants contribute to a group project and then have the option to pay to reduce the earnings of other players. Match each type of punishment behavior with the description of the action that best defines it.
In a large-scale economic experiment, groups of four anonymous individuals played a game for ten rounds. In each round, players received an endowment and could contribute to a group project that benefited all members. After contributions were revealed, players had the option to pay a fee to reduce the earnings of other players. The experiment was run in two different cities, City A and City B, with the following results:
- In City A, punishment was almost exclusively used against individuals who contributed very little to the group project. Average contributions in this city increased significantly over the ten rounds.
- In City B, punishment was frequently used not only against low contributors but also against individuals who contributed much more than the group average. Average contributions in this city did not increase and sometimes fell over the ten rounds.
Based on these experimental findings, what is the most likely inference about the general social norms in these two cities?
Significance of Cross-Societal Punishment Findings
Interpreting Punishment Patterns in Public Goods Games
Costs and Benefits in the Four-Farmer Irrigation Project Game
The Irrigation Game as a Multi-Player Prisoners' Dilemma
Conflict Between Collective and Individual Interests in the Irrigation Game
Four farmers share access to a water source. They are independently deciding whether to contribute a fixed amount of money to build a shared irrigation system. Each contribution is costly to the individual who makes it, but for every contribution made, all four farmers (including those who do not contribute) receive an equal increase in their crop yield. From the perspective of a single farmer focused on maximizing their own personal outcome, which statement best explains the strategic dilemma they face?
Conflict of Interest in a Shared Resource Scenario
The Farmer's Decision
Analyzing the Free-Rider Incentive
In a scenario where four farmers independently decide whether to contribute to a shared irrigation system, and each contribution benefits all farmers regardless of who pays, the most likely outcome is that all four will contribute because this action maximizes the total benefit for the group as a whole.
In a scenario where several farmers must independently decide whether to contribute to a shared irrigation system, match each element of the situation to its correct economic description.
Modifying Incentives in a Collective Project
Imagine a scenario where four farmers must independently decide whether to contribute to a shared irrigation system. The system is costly for each farmer who contributes, but every contribution benefits all four farmers equally, including those who do not pay. Which of the following statements best analyzes why the group is likely to end up with a less-than-ideal outcome for everyone?
Analyzing Strategic Interdependence in a Collective Project
In a strategic interaction where several farmers must independently decide whether to contribute to a shared irrigation system, the incentive for a farmer to benefit from the system without paying the cost is known as the ________ problem.
Design of a Worldwide Public Good Game Experiment
Free-Riding in a Public Irrigation Project
Learn After
Individual Incentive to Free-Ride in the Worldwide Public Good Game
Introduction of a Punishment Option in the Public Good Game Experiment
In a single round of an economic experiment, a group has four members. Each member is given $20 and can contribute any amount to a common fund. For every dollar in the fund, each of the four members receives a payout of $0.40. Imagine you are one of the members, and the other three members have contributed a total of $30 to the fund. Analyze your own financial outcome based on two choices: contributing $10 versus contributing $0. Which statement correctly identifies your best strategy for maximizing your personal payoff in this round?
The Role of Information in a Cooperative Game
Analyzing Payoffs in a Cooperative Game
In an economic experiment, four-person groups play a game for ten rounds. In each round, every participant receives $20 and can contribute any amount to a shared fund. For every dollar contributed to the fund, each of the four members (including the contributor) receives a benefit of $0.40. Suppose in one round, the total contribution from all four members to the shared fund is $40. What is the total net financial gain for the group as a whole in this round?
Critiquing an Experimental Design for Studying Cooperation
In an economic experiment, four-person groups play a game. In each round, every participant receives $20 and can contribute any amount to a shared fund. For every dollar contributed to the fund by any player, each of the four members receives a benefit of $0.40. If a single player decides to contribute $1 of their own money to the shared fund, what is the net change in that specific player's personal wealth resulting directly from that $1 contribution?
Calculating Individual Payoff in a Public Good Game
An economic experiment is conducted with four-person groups. In each round, every participant is given $20 and can contribute any amount to a shared fund. For every dollar contributed to the fund, each of the four members (including the contributor) receives a benefit of $0.40. Based on these rules, the course of action that maximizes a single player's personal financial gain in a round is the same course of action that maximizes the total financial gain for the group as a whole.
Modifying an Experimental Design to Test a New Hypothesis
Predicting Behavior in a Multi-Round Game
Key Observed Patterns in the Worldwide Public Good Game