Confirmation bias with motivated beliefs. (English) Zbl 1393.91027
Summary: We investigate whether the confirmation bias is mitigated in signal-extraction environments by outside financial interests. We include a background strategic consideration leading to ‘motivated beliefs’ for people in one role, as they receive higher equilibrium payoffs in a background game in one of two states, while people in the other role receive the same equilibrium payoffs in both. We find systematic differences in beliefs and our results suggest that players with motivated beliefs deviate less from Bayesian updating. However, such players still exhibit a confirmation bias in that they place additional weight on confirming information, in contrast to Bayesians.
References:
| [3] | Ariely, D.; Gneezy, U.; Loewenstein, G.; Mazar, N., Large stakes and big mistakes, Rev. Econ. Stud., 76, 2, 451-469 (2009) · Zbl 1168.91483 |
| [5] | Beck, A., Depression: Causes and Treatment (1972), University of Pennsylvania Press: University of Pennsylvania Press Philadelphia |
| [6] | Bisière, C.; Décamps, J.-P.; Lovo, A., Risk attitude, beliefs updating, and the information content of trades: an experiment, Manag. Sci., INFORMS, 61, 6, 1378-1397 (2015) |
| [7] | Burks, S.; Carpenter, J.; Goette, L.; Rustichini, A., Overconfidence and social signaling, Rev. Econ. Stud., 80, 949-983 (2013) · Zbl 1405.91091 |
| [8] | Camerer, C., Do biases in probability judgment matter in markets? Experimental evidence, Amer. Econ. Rev., 77, 981-997 (1987) |
| [9] | Charness, G.; Kuhn, P., Lab labor: what can labor economists learn in the lab?, (Ashenfelter, O.; Card, D., Handbook of Labor Economics, vol. 4a (2011)), 229-330 |
| [10] | Eckel, C. C.; Grossman, P. J., Forecasting risk attitudes: an experimental study using actual and forecast gamble choices, J. Econ. Behav. Organ., 68, 1, 1-17 (2008) |
| [11] | Eil, D.; Rao, J. M., The good news-bad news effect: asymmetric processing of objective information about yourself, Amer. Econ. J. Microecon., 3, 2, 114-138 (2011) |
| [12] | El-Gamal, M. A.; Grether, D. M., Are people Bayesian? Uncovering behavioral strategies, J. Amer. Statistical Assoc., 90, 1137-1145 (1995) · Zbl 0868.62016 |
| [13] | Eliaz, K.; Schotter, A., Paying for confidence: an experimental study of the demand for non-instrumental information, Games Econ. Behav., 70, 304-324 (2010) · Zbl 1200.91065 |
| [14] | Gonzalez, R.; Wu, G., On the shape of the probability weighting function, Cogn. Psychol., 38, 129-166 (1999) |
| [15] | Grether, D. M., Bayes rule as a descriptive model: the representativeness heuristic, Quart. J. Econ., 95, 537-557 (1980) |
| [16] | Grether, D. M., Testing Bayes rule and the representativeness heuristic, J. Econ. Behav. Organ., 17, 31-57 (1992) |
| [17] | Holt, C.; Smith, A., An update on Bayesian updating, J. Econ. Behav. Organ., 69, 125-134 (2009) |
| [18] | Jones, M.; Sugden, R., Positive confirmation bias in the acquisition of information, Theory Dec., 50, 59-99 (2001) · Zbl 0984.91510 |
| [19] | Lord, C.; Lepper, M. R.; Ross, L., Biased assimilation and attitude polarization: the effects or prior theories on subsequently considered evidence, J. Pers. Soc. Psychol., 37, 2098-2109 (1979) |
| [20] | Peterson, C.; Beach, L., Man as an intuitive statistician, Psychol. Bull., 68, 29-46 (1967) |
| [21] | Pines, J. M., Confirmation bias in emergency medicine profiles in patient safety, Acad. Emerg. Med., 13, 90-94 (2006) |
| [22] | Plous, S., Biases in the assimilation of technological breakdowns: so accidents make us safer?, J. Appl. Soc. Psychol., 21, 1058-1082 (1991) |
| [23] | Pouget, S.; Sauvagnat, J.; Villeneuve, S., A mind is a terrible thing to change: confirmatory bias in financial markets, Rev. Financ. Stud., Article hhw100 pp. (2016) |
| [24] | Rabin, M.; Schrag, J. L., First impressions matter: a model of confirmatory bias, Quart. J. Econ., 114, 37-82 (1999) · Zbl 0942.91077 |
| [25] | Wason, P. C., Reasoning about a rule, Q. J. Exp. Psychol., 20, 273-281 (1968) |
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