1. 머리말2. 패널자료모델의 구분3. 고정효과모델(Fixed Effect Model)4. 임의효과모델(Random Effect Model)5. 우도추정(Maximum Likelihood Estimation)6. 결 론 Recently, empirical research in economics has been enriched by theavailability of a wealth of new sources of data; cross sections of individualsobserved over time.These allow us to construct and test more realistic behavioral models thatcould not be identified using only a cross section or a single time series dataset.Several estimation techniques for panel data analysis as well as conceptualexplanation for several models - fixed and random effect models - areintroduced, even the arguments is focused on the linearcase.