Konwergencja czy dywergencja polskich województw? Zastosowanie dynamicznych modeli panelowych
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In the paper an attempt is made to answer the question if the process of convergence between Polish voivodeships exists. More precisely, the objective of the research is β-convergence. Its existence means that the countries in which the initial level of GDP per capita is low, develop faster than countries with higher initial level of income. In this case a catch-up effect is observed, which equalizes the levels of income. As a tool of analysis dynamic panel data models are applied. Two alternative estimation methods were applied: Arellano - Bond first-differenced GMM and Blundell – Bond system GMM. The main conclusion from the research is the lack of concurrent tendency of GDP per capita between Polish voivodeships. The estimate of the parameter β that decides the existence and strength of the convergence shows that there exists a divergent tendency in GDP per capita between voivodeships.