TY - JOUR AU - Cecchetti,Stephen G. AU - Lam,Pok-sang AU - Mark,Nelson C. TI - Mean Reversion in Equilibrium Asset Prices JF - National Bureau of Economic Research Working Paper Series VL - No. 2762 PY - 1990 Y2 - July 1990 UR - http://www.nber.org/papers/w2762 L1 - http://www.nber.org/papers/w2762.pdf N1 - Author contact info: Stephen G. Cecchetti Monetary and Economic Department Bank for International Settlements Centralbahnplatz 2 4002 Basel SWITZERLAND Tel: +41 61 280 8350 Fax: +41 61 280 9113 E-Mail: stephen.cecchetti@bis.org Pok-Sang Lam Department of Economics Ohio State University 1945 North High Street Columbus, OH 43210-1172 Tel: 614/292-6702 Nelson Mark Department of Economics University of Notre Dame 434 Flanner Notre Dame, IN 46556 Tel: 574/631-0518 Fax: 574/631-4783 E-Mail: nmark@nd.edu AB - Recent empirical studies have found that stock returns contain substantial negative serial correlation at long horizons. We examine this finding with a series of Monte Carlo simulations in order to demonstrate that it is consistent with an equilibrium model of asset pricing. When investors display only a moderate degree of risk aversion, commonly used measures of mean reversion in stock prices calculated from actual returns data nearly always lie within a 60 percent confidence interval of the median of the Monte Carlo distributions. From this evidence, we conclude that the degree of serial correlation in the data could plausibly have been generated by our model. ER -