1. Stochastic frontier models with multiple time-varying individual effects;Ahn;J. Prod. Anal.,2007
2. Exploring common factors in the term structure of credit spreads: the use of canonical correlations, working paper;Ahn,2009
3. Ahn, Seung C., Young H. Lee, and Peter Schmidt, 2010, Panel data models with multiple time-varying individual effects, Arizona State University, mimeo.
4. Small sample bias in GMM estimation of covariance structures;Altonji;J. Bus. Econ. Stat.,1996
5. GMM estimation of a stochastic volatility model: a Monte Carlo study;Andersen;J. Bus. Econ. Stat.,1996