Marek Gruszczynski is a professor at the Institute of Econometrics, SGH Warsaw School of Economics, Poland. His areas of expertise include applied econometrics, microeconometrics, time series forecasting, empirical corporate finance, fundamental analysis and corporate governance. He has authored textbooks, monographs and articles, with the book “Empirical Corporate Finance. Financial Microeconometrics” (2012, in Polish) having been honored in his native country with the prestigious “Beta” award (2013). His other book “Models and Forecasts of Qualitative Variables in Finance and Banking” (2002, in Polish) was granted the ministerial prize.