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Journal of Finance Vol. 69 No. 4 2014

Presidential Address: Investment Noise and Trends

Robert F. Stambaugh

United Nations

open access

Abstract

During the past few decades, the fraction of the equity market owned directly by individuals declined significantly. The same period witnessed investment trends that include the growth of indexing as well as shifts by active managers toward lower fees and more index‐like investing. I develop an equilibrium model linking these investment trends to the decline in individual ownership, interpreting the latter as a reduction in noise trading. Active management corrects most noise trader–induced mispricing, and the fraction left uncorrected shrinks as noise traders' stake in the market declines. Less mispricing then dictates a smaller footprint for active management.

DOI
10.1111/jofi.12174
Volume
69
Issue
4
Pages
1415-1453
Language
en
Sources
bibtex:phds-export.bib crossref openalex

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