TY - JOUR AU - Stein,Jeremy C. TI - Rational Capital Budgeting in an Irrational World JF - National Bureau of Economic Research Working Paper Series VL - No. 5496 PY - 1996 Y2 - March 1996 UR - http://www.nber.org/papers/w5496 L1 - http://www.nber.org/papers/w5496.pdf N1 - Author contact info: Jeremy C. Stein Department of Economics Harvard University Littauer 209 Cambridge, MA 02138 Tel: 617/496-6455 Fax: 617/496-7352 E-Mail: jeremy_stein@harvard.edu AB - This paper addresses the following basic capital budgeting question: Suppose that cross-sectional differences in stock returns can be predicted based on variables other than beta (e.g., book-to- market), and that this predictability reflects market irrationality rather than compensation for fundamental risk. In this setting, how should companies determine hurdle rates? I show how factors such as managerial time horizons and financial constraints affect the optimal hurdle rate. Under some circumstances, beta can be useful as a capital budgeting tool, even if it is of no use in predicting stock returns. ER -