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Bubbles, Fads and Stock Price Volatility Tests: A Partial Evaluation
Author(s) -
WEST KENNETH D.
Publication year - 1988
Publication title -
the journal of finance
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 18.151
H-Index - 299
eISSN - 1540-6261
pISSN - 0022-1082
DOI - 10.1111/j.1540-6261.1988.tb04596.x
Subject(s) - economics , volatility (finance) , stock (firearms) , econometrics , financial economics , stock price , rational expectations , series (stratigraphy) , mechanical engineering , paleontology , engineering , biology
This is a summary and interpretation of some of the literature on stock price volatility that was stimulated by Leroy and Porter [28] and Shiller [40]. It appears that neither small‐sample bias, rational bubbles nor some standard models for expected returns adequately explain stock price volatility. This suggests a role for some nonstandard models for expected returns. One possibility is a “fads” model in which noise trading by naive investors is important. At present, however, there is little direct evidence that such fads play a significant role in stock price determination.