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Professor Joowon Klusowski studies how people make numeric judgments and decisions. Specifically, Professor Klusowski utilizes experimental and observational data to explore questions with both behavioral and quantitative elements. Examples include how people estimate their probability of success; decide the quantity of a particular good or service to acquire or consume; perceive numbers expressed as percentages and multipliers; or use data and statistics to make predictions. Additionally, Professor Klusowski is interested in various topics related to human behavior research, such as choice, behavior change, emotion, and methods. Professor Klusowski's research has appeared in journals such as Nature and Psychological Science.

Selected Works


Megastudies improve the impact of applied behavioural science
K.L. Milkman, D. Gromet, H. Ho, J.S. Kay, T.W. Lee, P. Pandiloski, Y. Park, A. Rai, M. Bazerman, J. Beshears, L. Bonacorsi, C. Camerer, E. Chang, G. Chapman, R. Cialdini, H. Dai, L. Eskreis-Winkler, A. Fishbach, J.J. Gross, S. Horn, A. Hubbard, S.J. Jones, D. Karlan, T. Kautz, E. Kirgios, J. Klusowski, A. Kristal, R. Ladhania, G. Loewenstein, J. Ludwig, B. Mellers, S. Mullainathan, S. Saccardo, J. Spiess, G. Suri, J.H. Talloen, J. Taxer, Y. Trope, L. Ungar, K.G. Volpp, A. Whillans, J. Zinman, and A.L. Duckworth
Volume 600, Issue 7889, pp. 478-483


Does choice cause an illusion of control?
J. Klusowski, D.A. Small, and J.P. Simmons
Psychological Science
Volume 32, Issue 2, pp.159–172



PhD, The Wharton School, 2021