TY - JOUR AU - West,Kenneth D. AU - McCracken,Michael W. TI - Regression-Based Tests of Predictive Ability JF - National Bureau of Economic Research Technical Working Paper Series VL - No. 226 PY - 1998 Y2 - March 1998 UR - http://www.nber.org/papers/t0226 L1 - http://www.nber.org/papers/t0226.pdf N1 - Author contact info: Kenneth D. West Department of Economics University of Wisconsin 1180 Observatory Drive Madison, WI 53706 Tel: 608/262-0033 Fax: 608/262-2033 E-Mail: kdwest@wisc.edu AB - We develop regression-based tests of hypotheses about out of sample prediction errors. Representative tests include ones for zero mean and zero correlation between a prediction error and a vector of predictors. The relevant environments are ones in which predictions depend on estimated parameters. We show that standard regression statistics generally fail to account for error introduced by estimation of these parameters. We propose computationally convenient test statistics that properly account for such error. Simulations indicate that the procedures can work well in samples of size typically available, although there sometimes are substantial size distortions. ER -