Evaluating an Intervention in a Group Investment Scenario
Consider a research experiment where groups of four anonymous individuals play a game for ten rounds. In each round, every person receives an endowment and can choose to contribute some, all, or none of it to a group project. For every dollar contributed to the project, all four members receive a return of $0.40, regardless of who contributed. After each round, the contributions of all members are revealed. The typical result is that contributions are high in the first round but steadily decrease over subsequent rounds as people observe others contributing less.
A team of researchers proposes a modification to the experiment. In their new version, after contributions are revealed, players will have the option to pay a small fee to impose a larger financial penalty on any other player in their group. They hypothesize this will solve the problem of declining cooperation. Evaluate the likely success of this proposed modification. Justify your answer by explaining the underlying behavior that causes cooperation to decline in the original game and how the proposed change might affect that behavior.
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Altruism as a Potential Explanation for High Initial Contributions in the Public Good Game
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In an experiment, groups of four people are each given a new $20 endowment for ten consecutive rounds. In each round, they can secretly contribute any amount of their endowment to a common pool. For every dollar in the pool, each of the four players (including those who didn't contribute) receives $0.40. After each round, all members are informed of how much the other three contributed. Experiments consistently show two patterns: (1) In the first round, average contributions are significantly greater than zero. (2) Across the subsequent nine rounds, the average contribution level steadily falls. Which of the following best analyzes the relationship between these two observed patterns?
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Match each observed pattern from the worldwide public good game with its characteristic description.
In a 10-round experiment, groups of people are repeatedly given an endowment and the opportunity to anonymously contribute to a shared fund that benefits all members, including those who do not contribute. After each round, the total contribution of the group is revealed. Based on typical results from such experiments, arrange the following events by their expected average contribution level, from highest to lowest.
In a multi-round experiment, groups of people can contribute money from a personal endowment to a shared fund. Every dollar contributed benefits all group members, but not contributing while others do yields the highest personal payoff. While initial contributions in the first round are often unexpectedly high, this level of cooperation is typically not sustained. Over subsequent rounds, the average contribution level tends to ____.
Evaluating an Intervention in a Group Investment Scenario
In a 10-round experiment, four-person groups are repeatedly given an endowment to invest in a shared project. For every dollar contributed by any member, all four members (including the contributor) receive a return of $0.40. After each round, the contributions of all members are revealed. Experiments consistently show that contributions are high in the first round but steadily decrease in subsequent rounds. Which of the following statements provides the most robust explanation for this decline in cooperation?
Contribution Pattern in Chengdu's Public Good Game
Contribution Pattern in Chengdu's Public Good Game
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Figure 4.14b: Contributions in Worldwide Public Goods Experiments over 10 Periods