Rumor and prediction: Making sense (but losing dollars) in the stock market

被引:83
作者
DiFonzo, N
Bordia, P
机构
[1] TEMPLE UNIV,DEPT PSYCHOL,PHILADELPHIA,PA 19122
[2] UNIV QUEENSLAND,ST LUCIA,QLD 4067,AUSTRALIA
关键词
D O I
10.1006/obhd.1997.2724
中图分类号
B849 [应用心理学];
学科分类号
040203 ;
摘要
It is proposed that by making sense of unpredictable price movements, rumors spawn anti-regressive predictions and adversely affect trading decisions despite investor denigration of rumors, Two experimental stock market simulations investigated these ideas, Subjects were presented with news (Study 1) and published and unpublished rumors (Study 2) while participating in a computerized investment game. As compared with controls, all manipulations caused departures from a profitable buy-low-sell-high (tracking) trading strategy despite strong differences in rated credibility between types of information source. Subjects claimed that rumor sources were non-credible and that they were not influenced by rumors in trading decisions; nevertheless they traded on rumors as though they were news. Results integrate rumor theory with the psychology of prediction, extend the corpus of rumor literature to behavior, and highlight the sense-making function of rumor in situations filled with uncertainty. (C) 1997 Academic Press.
引用
收藏
页码:329 / 353
页数:25
相关论文
共 65 条
[1]   INTUITIVE THEORIES OF EVENTS AND EFFECTS OF BASE-RATE INFORMATION ON PREDICTION [J].
AJZEN, I .
JOURNAL OF PERSONALITY AND SOCIAL PSYCHOLOGY, 1977, 35 (05) :303-314
[2]  
Allport G.W., 1947, PSYCHOL RUMOR
[3]   PERSEVERANCE OF SOCIAL THEORIES - THE ROLE OF EXPLANATION IN THE PERSISTENCE OF DISCREDITED INFORMATION [J].
ANDERSON, CA ;
LEPPER, MR ;
ROSS, L .
JOURNAL OF PERSONALITY AND SOCIAL PSYCHOLOGY, 1980, 39 (06) :1037-1049
[4]   ARGUMENT AVAILABILITY AS A MEDIATOR OF SOCIAL-THEORY PERSEVERANCE [J].
ANDERSON, CA ;
NEW, BL ;
SPEER, JR .
SOCIAL COGNITION, 1985, 3 (03) :235-249
[6]  
Andreassen P. B., 1990, Journal of Behavioral Decision Making, V3, P153, DOI 10.1002/bdm.3960030302
[7]  
ANDREASSEN PB, 1987, J PERS SOC PSYCHOL, V53, P490
[9]   JUDGMENTAL EXTRAPOLATION AND THE SALIENCE OF CHANGE [J].
ANDREASSEN, PB ;
KRAUS, SJ .
JOURNAL OF FORECASTING, 1990, 9 (04) :347-372
[10]  
ANDREASSEN PB, 1984, THESIS COLUMBIA U