Wołkonowski, Jarosław (Wydawnictwo Uniwersytetu Łódzkiego, 2019)
The article analyzes the beta‑convergence of the EU–10 countries and the EU–15 for 2004 and 2015 at four levels – the state, NUTS 1, NUTS 2 and NUTS 3. The strongest beta‑convergence is at the level of the EU–10 countries; ...