Marek Antosiewicz graduated in Mathematics from the University of Warsaw and in Economics from the Warsaw School of Economics. Since 2012, he has been a PhD student at the WSE Collegium of Economic Analysis. In his PhD thesis, he develops methods of solving heterogeneous macroeconomic models and applies them in labour market analysis. At the Institute for Structural Research, he is mostly responsible for creating, estimating and calibrating macroeconomic models used to analyse climate change and energy policies. He has written academic articles and reports on this subject as part of projects such as MAPS Chile, DYNAMIX or TRANSrisk.