TY - JOUR AU - Pindyck,Robert S. TI - Risk Aversion and Determinants of Stock Market Behavior JF - National Bureau of Economic Research Working Paper Series VL - No. 1921 PY - 1986 Y2 - May 1986 UR - http://www.nber.org/papers/w1921 L1 - http://www.nber.org/papers/w1921.pdf N1 - Author contact info: Robert S. Pindyck MIT Sloan School of Management 100 Main Street, E62-522 Cambridge, MA 02142 Tel: 617/253-6641 Fax: 617/258-6855 E-Mail: RPINDYCK@MIT.EDU AB - A simple model of equity pricing is developed to address two related questions. First, to what extent can unanticipated changes in such"fundamental" variables as profitability, real interest rates, inflation, and the variance of returns account for the observed behavior of the stockmarket? Second, how risk averse are investors in the aggregate?We find that the pretax profit rate and the variance of returns are both significant explanators of the market, and interest rates somewhat less so. Estimates of the index of relative risk aversion are obtained that put that parameter in the range of 3 to 4. ER -