TY - JOUR
AU - Burnside, Craig
TI - Identification and Inference in Linear Stochastic Discount Factor Models with Excess Returns
JF - National Bureau of Economic Research Working Paper Series
VL - No. 16634
PY - 2010
Y2 - December 2010
DO - 10.3386/w16634
UR - http://www.nber.org/papers/w16634
L1 - http://www.nber.org/papers/w16634.pdf
N1 - Author contact info:
Craig Burnside
Department of Economics
Duke University
213 Social Sciences Building
Durham, NC 27708-0097
Tel: 919/660-1808
Fax: 919/684-8974
E-Mail: craig.burnside@duke.edu
AB - When excess returns are used to estimate linear stochastic discount factor (SDF) models, researchers often adopt a normalization of the SDF that sets its mean to 1, or one that sets its intercept to 1. These normalizations are often treated as equivalent, but they are subtly different both in population, and in finite samples. Standard asymptotic inference relies on rank conditions that differ across the two normalizations, and which can fail to differing degrees. I first establish that failure of the rank conditions is a genuine concern for many well known SDF models in the literature. I also describe how failure of the rank conditions can affect inference, both in population and in finite samples. I propose using tests of the rank conditions not only as a diagnostic device, but also for model reduction. I show that this model reduction procedure has desirable size and power properties in a Monte Carlo experiment with a calibrated model.
ER -