This dissertation consists of three essays, first two of which consider a new estimation method of dynamic panel data models and the last one considers an application of these models. The first essay (Chapter 1) offers empirical likelihood (EL) estimation of dynamic panel data models, which...

The goal of this article is to investigate the role of product variety and changes in the product variety in the patter of exports of Poland a middle-sized open economy in the second phase of economic transition to a benchmark group of countries – EU15. The analysis covers the period 1999-2006...