TY  - CHAP
AB  - In this paper we use Monte Carlo sampling experiments to examine the properties of pretest estimators in the random parameters logit (RPL) model. The pretests are for the presence of random parameters. We study the Lagrange multiplier (LM), likelihood ratio (LR), and Wald tests, using conditional logit as the restricted model. The LM test is the fastest test to implement among these three test procedures since it only uses restricted, conditional logit, estimates. However, the LM-based pretest estimator has poor risk properties. The ratio of LM-based pretest estimator root mean squared error (RMSE) to the random parameters logit model estimator RMSE diverges from one with increases in the standard deviation of the parameter distribution. The LR and Wald tests exhibit properties of consistent tests, with the power approaching one as the specification error increases, so that the pretest estimator is consistent. We explore the power of these three tests for the random parameters by calculating the empirical percentile values, size, and rejection rates of the test statistics. We find the power of LR and Wald tests decreases with increases in the mean of the coefficient distribution. The LM test has the weakest power for presence of the random coefficient in the RPL model.
VL  - 26
SN  - 978-0-85724-150-4, 978-0-85724-149-8/0731-9053
DO  - 10.1108/S0731-9053(2010)0000026008
UR  - https://doi.org/10.1108/S0731-9053(2010)0000026008
AU  - Zeng Tong
AU  - Carter Hill R.
ED  - William Greene
ED  - R. Carter Hill
PY  - 2010
Y1  - 2010/01/01
TI  - Pretest Estimation in the Random Parameters Logit Model
T2  - Maximum Simulated Likelihood Methods and Applications
T3  - Advances in Econometrics
PB  - Emerald Group Publishing Limited
SP  - 107
EP  - 136
Y2  - 2024/04/19
ER  -