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Abstract Economic theory assumes that investment choices do not depend on the source of the budget. We test this assumption in the lab. In the experiments, we divide participants into two groups: those that obtain an endowment through a windfall and those that obtain the same amount through completing a physical effort task (the ”hard-earned” group). In a previous treatment, we have showed that that individuals in the hard-earned group make less risky and more patient choices than individuals in the windfall group. In the current experiment, we wish to expose the control group to a "settling in" period, so that the control and treated group spend approximately the same amount of time in the lab before making choices. The proverb "easy come, easy go" tells us that the regret from losing something depends upon how hard we worked to get it. Normative economic theory assumes, however, that liquid wealth is fungible irrespective of its source; how a dollar is obtained should not affect what we buy with that dollar or the risk we are willing to take investing that dollar. Thaler and Johnson (1990) dispute that claim with a series of experiments demonstrating that people make different choices with money that has been easily or unexpectedly obtained. Thaler argues that people behave as if income and expenses are assigned to separate mental accounts with limited fungibility between accounts (Thaler 1999; Shefrin and Thaler 1988). Money easily gained is likely to end up in a mental account from which money is easily spent and readily wagered. Hard earned money is likely to land in a mental account from which money is more carefully spend and less readily wagered. For most people, most money is of the earned variety. In economics laboratory experiments, participants are typically given an endowment equivalent to a couple of hours’ wages. Such endowments encourage participants to pay attention, exert more effort, and try to make choices that lead to higher earnings within the design of the experiment. However, Thaler and Johnson (1990) argue that when people lose money they consider to be a windfall gain, the loss is likely to be coded as a reduction in the gain which “doesn’t hurt as much as losing one’s own cash” (p. 657). Thus laboratory participants who mentally code money given to them in a laboratory as a windfall gain, distinct and separate from their earned income and savings, may display much less risk aversion in the laboratory than they do in their daily lives. Our purpose is to demonstrate that in an experimental laboratory setting subjects asked to make risky choices take more risk with money they were given by the experimenter than money they earned. These differences in risk taking are dramatic and raise questions about inferences drawn from prior risk taking experiments with endowed money.
Trial Start Date February 05, 2017 March 19, 2023
Trial End Date June 30, 2019 June 30, 2024
Last Published April 29, 2019 11:00 PM April 10, 2023 05:50 PM
Intervention (Public) We divide participants into two groups: those that obtain an endowment through a windfall and those that obtain the same amount through completing a physical effort task (the ”hard-earned” group). We test whether individuals in the hard-earned group make less risky and more patient choices than individuals in the windfall group. Please note that the experiment is a follow-up on a previously run experiment (and disseminated as a working paper) by Hvide and Lee. For the risk task we follow Holt & Laury (2002). We divide participants into two groups: those that obtain an endowment through a windfall and those that obtain the same amount through completing a physical effort task (the ”hard-earned” group). We test whether individuals in the hard-earned group make less risky and more patient choices than individuals in the windfall group. Please note that the experiment is a follow-up on a previously run experiment (and disseminated as a working paper) by Hvide and Lee. For the risk task we follow Holt & Laury (2002). Subjects in the XLab subject pool at UC Berkeley are invited to participate on a first-come-first-serve basis. There are no other inclusion/exclusion criteria used. We plan to run approximately 10 sessions, with approximately 20 subjects per session each, for a total of 200 subjects. Subjects from the XLab subject pool are invited via email by XLab staff to participate in one single session, with no follow-up sessions. The experiment should take less than one hour to complete per session. Data collection is through a computer.
Intervention Start Date April 01, 2019 June 30, 2023
Intervention End Date May 31, 2019 June 30, 2024
Experimental Design (Public) We divide participants into two groups: those that obtain an endowment through a windfall and those that obtain the same amount through completing a physical effort task (peeling potatoes). In the current experiment the control ("windfall") group will have a settling in period of about 30 minutes. Apart from that all the details are the same as in the initial experiment We divide participants into two groups: those that obtain an endowment through a windfall and those that obtain the same amount through completing a physical effort task (peeling potatoes). In the current experiment the control ("windfall") group will have a settling in period of about 10 minutes. Apart from that all the details are the same as in the initial experiment
Planned Number of Clusters About 60 individuals in each group, 120 in total About 100 individuals in each group, 200 in total
Planned Number of Observations About 60 individuals in each group, 120 in total About 100 individuals in each group, 200 in total
Sample size (or number of clusters) by treatment arms About 60 individuals in each group, 120 in total About 100 individuals in each group, 200 in total
Keyword(s) Finance Finance
Did you obtain IRB approval for this study? No Yes
Building on Existing Work No
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Irbs

Field Before After
IRB Name UC Berkeley Committee for the Protection of Human Subjects
IRB Approval Date October 26, 2020
IRB Approval Number 2020-09-13681
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Other Primary Investigators

Field Before After
Affiliation UC Berkeley
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Fields Removed

Other Primary Investigators

Field Value
Affiliation University of Aberdeen
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