Many researchers use categorical data analysis to recover individual consum
ption preferences, but the standard discrete choice models require restrict
ive assumptions. To improve the flexibility of discrete choice data analysi
s, we propose a nonparametric multiple choice model that applies the penali
zed likelihood method within the random utility framework. We show that the
deterministic component of the random utility function in the model is a c
ubic smoothing spline function. The method subsumes the conventional condit
ional legit model (McFadden, 1973, in: Zarembka, P., (Ed.), Frontiers in Ec
onometrics) as a special case. In this paper, we present the model, describ
e the estimator, provide the computational algorithm of the model, and demo
nstrate the model by applying it to nonmarket valuation of recreation sites
. (C) 2000 Elsevier Science S.A. All rights reserved. JEL classification. C
14.