Jan Gaska is research fellow in The Collegium of Economic Analysis of Warsaw School of Economics and works as an advisor for the World Bank. He graduated from Warsaw School of Economics and University of Warsaw where he was studying respectively economics and mathematics. Performing his duties he is responsible for macroeconomic analysis and modeling. He is especially interested in the research concerning the climate and fiscal policies. Those issues he also develops under his PhD thesis. He is coauthor of numerous publications and analysis.