Quantitative economics has advanced dramatically in the past eighty years and much of this took place in the three decades following World War II. Many contributions were initiated and sponsored by the defense community. For the resolution of major military management and planning problems it...

Now in its fourth edition, this comprehensive introduction of fundamental panel data methodologies provides insights on what is most essential in panel literature. A capstone to the forty-year career of a pioneer of panel data analysis, this new edition's primary contribution will be the...