TY - JOUR AU - Alevy,Jonathan E. AU - Haigh,Michael S. AU - List,John TI - Information Cascades: Evidence from An Experiment with Financial Market Professionals JF - National Bureau of Economic Research Working Paper Series VL - No. 12767 PY - 2006 Y2 - December 2006 UR - http://www.nber.org/papers/w12767 L1 - http://www.nber.org/papers/w12767.pdf N1 - Author contact info: Jonathan E. Alevy University of Alaska Anchorage E-Mail: afja@uaa.alaska.edu Michael S. Haigh U.S Commodity Futures Trading Commission 1155 21st Street NW Washington, DC 20581 E-Mail: mhaigh@cftc.gov John List Department of Economics University of Chicago 1126 East 59th Chicago, IL 60637 Tel: 301/405-1288 Fax: 301/314-9091 E-Mail: jlist@uchicago.edu AB - Previous empirical studies of information cascades use either naturally occurring data or laboratory experiments with student subjects. We combine attractive elements from each of these lines of research by observing market professionals from the Chicago Board of Trade (CBOT) in a controlled environment. As a baseline, we compare their behavior to student choices in similar treatments. We further examine whether, and to what extent, cascade formation is influenced by both private signal strength and the quality of previous public signals, as well as decision heuristics that differ from Bayesian rationality. Analysis of over 1,500 individual decisions suggests that CBOT professionals are better able to discern the quality of public signals than their student counterparts. This leads to much different cascade formation. Further, while the behavior of students is consistent with the notion that losses loom larger than gains, market professionals are unaffected by the domain of earnings. These results are important in both a positive and normative sense. ER -