 In April 1939 the President of Poland Ignacy Mościcki awarded him a professorship.Apart from his work at his "alma mater", Swianiewicz was also active in several NGOs promoting links between various Central and Eastern European nations and studying the peculiarities of that part of the continent.In 1938 he published his "Polityka gospodarcza Niemiec hitlerowskich" ("Economical Policies of Nazi Germany"), in which he was the first economist to compare the Nazi and Soviet "socialist" economies.