This article reviews the state's role in the transition economies of Central and Eastern Europe. Among the countries, Poland is perceived as the leader because it was the first economy to emerge from the decline following the transition, as well the only EU member state to survive the crisis...

The presence of structural breaks reduces the power of integration tests. A number of methods were suggested to improve the statistical properties of integration tests in the presence of structural breaks. The most known are Perron tests, which allow to test for the level of integration of time...