This paper extends the semiparametric efficient treatment of panel data models pursued by Park and Simar (1994) and Park, Sickles, and Simar (1998, 2003) to a dynamic panel setting. We develop a semiparametric efficient estimator under minimal assumptions when the panel model contains a lagged dependent variable. We apply this new estimator to analyze the structure of demand between city pairs for selected U. S. airlines during the period 1979 I to 1992 IV.
Park, B. U., Sickles, R. C., & Simar, L. (2003). Semiparametric efficient estimation of dynamic panel data models (STAT Discussion Papers 0315). https://hdl.handle.net/2078.5/34797