Comparison of Ultimatum Game Responses: Kenyan Farmers vs. US Students
Experiments comparing ultimatum game responses from Kenyan farmers and US students reveal significant behavioral differences driven by varying attitudes toward fairness. While a 50% split was accepted by everyone, farmers were far more likely to reject low offers. For instance, almost half of the farmers rejected a 30% offer, and a 10% offer was accepted by only 2% of farmers compared to 58% of students. These results suggest that while both groups are influenced by social preferences, their willingness to sacrifice money to punish perceived unfairness differs substantially.
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CORE Econ
Introduction to Microeconomics Course
Ch.4 Strategic interactions and social dilemmas - The Economy 2.0 Microeconomics @ CORE Econ
Ch.5 The rules of the game: Who gets what and why - The Economy 2.0 Microeconomics @ CORE Econ
The Economy 2.0 Microeconomics @ CORE Econ
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Comparison of Ultimatum Game Responses: Kenyan Farmers vs. US Students
Comparison of Proposer Offers: Kenyan Farmers vs. US Students
Comparison of Ultimatum Game Behavior: Rural Missourians vs. Kenyan Farmers
Source Study: Fischbacher, Fong, and Fehr (2009) on Fairness, Errors, and the Power of Competition
An economist conducts the same economic sharing experiment, known as the ultimatum game, in two different societies. In Society 1, the person proposing the split (the Proposer) consistently offers a large portion of the total sum (e.g., 40-50%). In Society 2, Proposers consistently offer a much smaller portion (e.g., 10-20%). Assuming the Proposers in both societies are primarily motivated by maximizing their own payoff, what is the most likely reason for this difference in behavior?
Interpreting Experimental Economic Data
Economists have conducted the ultimatum game with a wide variety of participant groups around the world, including students in industrialized nations, farmers in developing countries, and individuals from hunter-gatherer societies. A consistent finding is that the average offers from Proposers and the rejection rates from Responders can differ significantly between these groups. What is the primary implication of this observed behavioral variation?
Interpreting Cross-Cultural Economic Behavior
Analyzing Ultimatum Game Behavior in New Contexts
A researcher conducts an ultimatum game experiment exclusively with university students in a large European city. They find that Proposers offer, on average, 25% of the total sum, and Responders rarely reject offers above 10%. The researcher concludes that these findings reveal a universal human tendency to prioritize any personal gain over fairness. Based on what is known from applying this experiment across diverse populations, what is the most significant weakness in this conclusion?
Experimental results from applying the ultimatum game across diverse global populations consistently show that individuals in non-industrialized societies are more likely to accept any positive offer, aligning more closely with a model of pure economic self-interest than individuals in industrialized societies.
The application of a simple economic sharing game across a wide variety of human societies—from university students to hunter-gatherers—has revealed significant differences in how people propose and respond to offers. In some groups, low offers are common and accepted, while in others, low offers are frequently rejected, and Proposers tend to offer nearly half the sum. What is the most significant implication of these varied findings for the field of economics?
Value of Cross-Cultural Economic Experiments
Evaluating Competing Hypotheses in Economic Anthropology
Rationale for Cross-Cultural Ultimatum Game Studies
Interpreting Proposer Behavior in Economic Games
Researchers use the ultimatum game to study economic behavior in diverse populations. Match each participant group with the primary research rationale for studying them in this context.
The consistent finding from economic sharing experiments (ultimatum games) conducted across diverse global populations is that most people, regardless of cultural background, act as purely self-interested individuals, with proposers offering the minimum possible amount and responders accepting any non-zero offer.
An economic experiment involving two participants, a 'Proposer' and a 'Responder', is conducted in two different, isolated communities. In Community 1, Proposers consistently offer a nearly equal split of a sum of money, and Responders frequently turn down offers they perceive as low, resulting in neither participant receiving anything. In Community 2, Proposers tend to offer a small fraction of the sum, and Responders almost always accept any offer greater than zero. Based on a comparison of these outcomes, what is the most sound inference?
Evaluating the Significance of Experimental Economic Games
An economist studies a small, tight-knit community using an economic game where one person (the 'Proposer') suggests how to split a sum of money, and another person (the 'Responder') can accept or reject the offer. If the offer is rejected, neither person receives anything. The economist observes that Proposers consistently offer close to a 50/50 split, and Responders frequently reject any offer below 40%. The economist concludes: 'This community possesses an exceptionally strong, innate sense of fairness compared to other groups studied globally.' Which of the following statements presents the most significant challenge to the economist's conclusion?
Critiquing the 'Economic Man' Model
In an economic experiment, a 'Proposer' suggests how to split a sum of money with a 'Responder'. If the Responder accepts, they get the proposed split. If they reject, both get nothing. When this experiment was conducted with two different, isolated groups, the following patterns emerged:
- Group A: Proposers frequently offered 40-50% of the total sum. Responders in this group were very likely to reject any offer below 30%.
- Group B: Proposers most commonly offered 10-20% of the total sum. Responders in this group would typically accept any offer, even those as low as 10%.
An analyst reviews only the Proposer data and concludes: 'The Proposers in Group A are inherently more generous and have a stronger sense of fairness than the Proposers in Group B.'
Which of the following statements provides the strongest critique of the analyst's conclusion?
Critiquing an Experimental Design
Observed Ultimatum Game Outcomes vs. the Homo Economicus Model
Comparison of Ultimatum Game Responses: Kenyan Farmers vs. US Students
Responder Competition Lowers Rejection Rates Due to Uncertainty
Dictator Game
Power Assignment in Experimental Games vs. Real Economies
Government Income Support Increases Employee Bargaining Power
Consumer Structural Power from Competition
Consider two distinct one-time bargaining situations involving a Proposer and a Responder who must agree on how to split $100.
Situation 1: The Proposer makes a take-it-or-leave-it offer. If the Responder accepts, they split the money as proposed. If the Responder rejects, both get nothing.
Situation 2: The Proposer dictates the split, and the Responder automatically receives their share with no ability to reject the offer.
How does the change in rules from Situation 1 to Situation 2 affect the relative bargaining power of the Proposer and the likely outcome?
Impact of Competition on Bargaining Outcomes
Consider three different one-time bargaining scenarios over a sum of $100. Arrange these scenarios in order from the one that gives the Proposer the MOST bargaining power to the one that gives the Proposer the LEAST bargaining power.
Analyzing the Impact of a Modified Rejection Payoff
Evaluating Rule Structures for Equitable Bargaining
In a strategic interaction where one person (the Proposer) offers to split a sum of money with another person (the Responder), match each modification to the rules with its most likely effect on the balance of bargaining power.
True or False: Consider a one-time bargaining situation where a Proposer offers a split of $100 to a Responder. If the rule is changed from 'a rejection means both players get $0' to 'a rejection means the Responder gets $10 and the Proposer gets $0', this change in rules decreases the Responder's bargaining power.
In a one-time bargaining interaction, a Proposer offers to split $100 with a single Responder. If the Responder rejects the offer, both individuals receive nothing. If the rules are changed so that the Proposer makes an offer to two Responders simultaneously, and the split is finalized with the first Responder to accept, the introduction of this competition is expected to cause the average offer amount accepted by a Responder to ________.
Analyzing the Impact of an Outside Option on Bargaining Power
A research institute is studying how different rule structures affect negotiation outcomes. They set up four different scenarios for a Proposer to split a $100 prize with a Responder. In which of the following scenarios does the Proposer have the most structural power, making a highly unequal split (e.g., the Proposer keeping almost everything) the most probable outcome?
How Game Rules Shape Bargaining Power in the Ultimatum Game
Impact of a Responder's Outside Option on Ultimatum Game Outcomes
In a one-shot economic interaction, a 'Proposer' is allocated $100 and must offer a portion to a 'Responder'. If the Responder accepts the split, they both get paid accordingly. If the Responder rejects the split, both receive nothing. The Proposer offers the Responder $10. The Responder rejects the offer. From the perspective of a purely self-interested individual, this rejection is irrational. Which statement best analyzes the Responder's action by incorporating the influence of social preferences?
Analyzing Responder Behavior in Different Social Contexts
In a one-shot interaction where one person (the Proposer) offers another person (the Responder) a portion of a sum of money, the Responder's decision to accept any positive offer, no matter how small, is the most common observed behavior because it strictly maximizes their immediate financial outcome.
Explaining Seemingly Irrational Economic Decisions
In a one-shot interaction, a 'Proposer' is given a sum of money and must offer a portion of it to a 'Responder'. If the Responder accepts, the money is split as proposed. If the Responder rejects, neither person receives anything. Match each of the following Responder behaviors to the underlying preference or motivation that best explains it.
Evaluating the Pure Self-Interest Model in a Bargaining Scenario
In a one-shot bargaining scenario, a person who rejects a small but positive share of a sum of money, thereby ensuring both parties get nothing, is demonstrating behavior influenced by ______, which can include considerations like fairness or a desire to punish an ungenerous offer.
Interpreting Bargaining Experiment Results
In a bargaining experiment, a 'Proposer' offers a split of $100 to a 'Responder'. If the Responder rejects the offer, both get nothing. The experiment is run under two conditions:
- Condition 1: Proposers are chosen randomly.
- Condition 2: Proposers earn their role by scoring highest on a general knowledge quiz.
The results show that for any offer below $40, Responders in Condition 2 are significantly more likely to reject the offer than Responders in Condition 1.
Which of the following statements provides the most robust evaluation of this outcome?
Predicting Economic Behavior in Different Social Settings
Comparison of Ultimatum Game Responses: Kenyan Farmers vs. US Students
Learn After
Comparison of Proposer Offers: Kenyan Farmers vs. US Students
Disentangling Cultural, Occupational, and National Influences in Ultimatum Game Behavior
In an economic experiment, a 'Proposer' offers a split of a sum of money to a 'Responder'. If the Responder accepts, they both get the money as proposed; if the Responder rejects, both get nothing. When comparing US students and Kenyan farmers as Responders, researchers found that while a 50% offer was accepted by nearly everyone, farmers were far more likely than students to reject offers of 30% or less. Which of the following statements best analyzes the behavior of the Kenyan farmers?
Interpreting Economic Behavior
Critiquing Interpretations of Economic Experiments
Consider a bargaining scenario where a 'Proposer' offers a split of a sum of money, and a 'Responder' can either accept the deal or reject it, in which case neither person gets anything. In a study comparing two distinct cultural groups, Group A (Kenyan farmers) was far more likely to reject low offers (e.g., 20% of the total sum) than Group B (US students). Based on this outcome, one can definitively conclude that individuals in Group A are less motivated by personal monetary gain than individuals in Group B.
Explaining Behavioral Differences in Economic Games
In a bargaining scenario, a 'Proposer' offers to split a sum of money with a 'Responder'. The Responder can accept the offer, or reject it, in which case neither person receives anything. An experiment found that while almost all participants from both groups accepted a 50% offer, Kenyan farmers were much more likely to reject a low offer (e.g., 20%) than US students. A critic of the study argues, 'This result simply shows that the farmers are irrational because any rational person would accept any amount of money rather than get nothing.' Which of the following provides the strongest counter-argument to this critic's claim?
In a one-shot bargaining game, a 'Proposer' offers a split of a sum of money, and a 'Responder' can accept or reject it. If rejected, neither party gets anything. An experiment compared two culturally distinct groups of Responders, 'Group A' and 'Group B'. Match each behavioral pattern observed in the experiment to its most likely underlying driver.
Strategic Proposing in a Bargaining Game
Predicting Behavior in Economic Games
Designing an Experiment to Isolate Motivations
Influence of Social Preferences on Responder Behavior in the Ultimatum Game
Offer Structure in the Kenyan/US Ultimatum Game Experiment
Figure 4.17: Responder Acceptance Rates in the Kenyan/US Ultimatum Game