Evidence from Economic Games: Self-Interest is a Minority Behavior
In numerous economic game experiments, individuals behaving as purely self-interested Homo economicus are often found to be in the minority. The results provide substantial evidence for behaviors motivated by other values, such as altruism and aversion to inequality. This finding holds true even when the financial stakes are high, equivalent to many days' wages.
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Ch.4 Strategic interactions and social dilemmas - The Economy 2.0 Microeconomics @ CORE Econ
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Interpreting Experimental Economic Data
An economist develops a new theory about how individuals decide whether to contribute to a shared resource. What is the primary reason for using a controlled laboratory experiment to investigate this theory?
Designing an Experiment to Test Fairness
Match each key feature of a controlled economic experiment with its primary purpose in understanding human decision-making.
A researcher conducts an experiment where participants are given $10 and can anonymously give any amount to a stranger. Most participants give some money away. A critic argues this result is meaningless for understanding real-world economics because the experiment takes place in an artificial lab, not in a real market. The critic's argument is valid because the primary goal of such economic experiments is to perfectly replicate naturally occurring situations.
Analyzing Experimental Results to Understand Behavior
Analyzing the Impact of Rule Changes in an Economic Experiment
Evaluating an Experimental Design
In a controlled experiment, two anonymous participants are assigned roles. Player 1 is given $20 and must propose how to split it with Player 2. Player 2 can either accept the proposed split, in which case both players are paid accordingly, or reject it, in which case both players receive nothing. The most common proposal from Player 1 is a $10/$10 split, and proposals where Player 1 offers less than $5 are almost always rejected by Player 2. What is the most logical conclusion that can be drawn from these results?
An economist wants to study how small-scale farmers decide whether to adopt a new, more expensive but potentially more profitable type of seed. They are considering two research methods:
- Method A: A controlled experiment in a university computer lab where farmers are given information and a sum of money, and they play a game that simulates the risks and rewards of choosing the new seed versus their traditional seed.
- Method B: A field study where a random group of farmers in a village is offered a discount on the new seed, and their adoption rate is compared to another random group in the same village that was not offered the discount.
Which statement best evaluates the primary trade-off between these two methods for understanding the farmers' decision-making?
Methodology of Controlled Economic Experiments: Isolating Variables
Learn After
An experiment is conducted where one person (the Proposer) is given $100 and must offer a portion to a second person (the Responder). If the Responder accepts the offer, the money is split as proposed. If the Responder rejects the offer, both individuals receive nothing. The purely self-interested prediction is that the Proposer will offer the smallest possible amount (e.g., $1) and the Responder will accept it, since $1 is better than $0. However, experiments consistently show that offers below $30 are frequently rejected by Responders. Which of the following statements best analyzes this common experimental outcome?
Evaluating Experimental Economic Evidence
Interpreting Experimental Economic Data
The observation that participants in economic experiments often reject low, but positive, monetary offers demonstrates that the potential financial gain is the only factor influencing their decision-making process.
Reconciling Economic Theory with Experimental Observations
In economic experiments, participants exhibit various behaviors that challenge the assumption of pure self-interest. Match each described behavior with the primary motivation it most strongly suggests.
Designing a Community Contribution System
An economist conducts an experiment where one person (the 'Proposer') is given a sum of money and must offer a portion to a second person (the 'Responder'). If the Responder accepts, they split the money as proposed; if they reject, neither gets anything. The experiment is run twice: first with a total of $10 and then with a total of $1,000. Based on robust findings from similar experiments, what is the most likely change in behavior when the stakes are increased from $10 to $1,000?
Evaluating the 'High-Stakes' Critique of Behavioral Findings
Experimental results from economic games, where many participants make choices that benefit others at a personal cost or reject unfair distributions, indicate that purely self-interested behavior is often a ________ behavior, rather than the universal norm predicted by some traditional models.