| 11. |
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| 12. |
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| 13. |
- Johansson-Stenman, Olof, 1966, et al.
(författare)
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Are Men Really More Overconfident than Women? - A Natural Field Experiment on Exam Behavior
- 2010
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- This paper reports from a simple natural field experiment based on an eco-nomics exam. Part of the exam consisted of 30 multiple choice questions, where the students obtained 1 point per correct answer while 1 point was deducted for each in-correct answer. We find no significant gender differences in overconfidence, irrespec-tive of how we measure it, i.e., whether we regard the number of questions answered, the number of questions answered incorrectly or the answering patterns for the most difficult questions. Hence, the data provides no support for the frequently proposed hypothesis that men are more overconfident than women.
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| 14. |
- Johansson-Stenman, Olof, 1966
(författare)
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HEALTH INVESTMENTS UNDER RISK AND AMBIGUITY
- 2010
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- This paper discusses how a decision maker should deal with uncertainty, both in the sense of a well-known probability distribution of different outcomes and as a situation where also the probability distribution is unknown. A simple baseline model is used throughout the paper, where the decision maker can invest in order to decrease the health risk. Since the investment is risky, the question concerns how much to invest. We derive and compare the optimal investment level for a number of different decision rules: a best guess rule, a maximin rule, an expected value rule, an expected utility rule, and three different rules that beyond risk aversion also reflect ambiguity aversion. Finally, these decision rules are evaluated more broadly.
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| 15. |
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| 16. |
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| 17. |
- Johansson-Stenman, Olof, 1966, et al.
(författare)
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Self-Image and Valuation of Moral Goods: Stated versus Real Willingness to Pay
- 2011
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Hypothetical bias in stated-preference methods appears sometimes to be very large, and other times non-existent. This is here largely explained by a model where people derive utility from a positive self-image associated with morally commendable behavior. The results of a choice experiment are consistent with the predictions of this model; the hypothetical marginal willingness to pay (MWTP) for a moral good (contributions to a WWF project) is significantly higher than the corresponding real MWTP, whereas no hypothetical bias is present for an amoral good (a restaurant voucher). Moreover, both the theoretical model and the experimental evidence suggest that also the real MWTP for the moral good is biased upwards by being higher within than outside the experimental context.
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| 18. |
- Biel, Anders, 1948, et al.
(författare)
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The willingness to pay–willingness to accept gap revisited: The role of emotions and moral satisfaction
- 2011
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Ingår i: Journal of Economic Psychology. ; 32:6, s. 908-917
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Tidskriftsartikel (refereegranskat)abstract
- While many earlier studies have found that people’s maximum willingness to pay for having a good is often substantially lower than their minimum willingness to accept not having it, more recent experimental evidence suggests that this discrepancy vanishes for standard consumption goods when an incentive-compatible design without misconceptions is used. This paper hypothesises that there is nevertheless a discrepancy for goods with a perceived moral character, such as contributions to a good cause, and moreover that the reason for this discrepancy can largely be explained by differences in emotions and moral perceptions. The results from a real-money dichotomous-choice experiment, combined with measurements of emotions and morality, are consistent with these hypotheses
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| 19. |
- Johansson-Stenman, Olof, 1966
(författare)
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Health Investements under Risk and Ambiguity
- 2011
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Ingår i: The Oxford Handbook of the Economics of Food Consumption and Policy, Edited by Jason Lusk, Jutta Roosen and Jayson Shogren. - Oxford, UK : Oxford University Press. - 9780199569441 ; , s. 438-471
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Bokkapitel (refereegranskat)
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