 Numerous essays of him have been published in various political journals and in the reports of the Federal Institute of East European and International Studies in Cologne, now Stiftung Wissenschaft und Politik in Berlin.Hoppe has been regularly observing the developments in Russia, Eastern Europe, Central Asia and Caucasus.He has also been working on problems of multiculturalism, especially the situation of the Germans, Ukrainians, Russians and other East European communities in the USA and Canada.