A group of professors and researchers from the University of Harvard conducted extensive research where they tried to find out which countries in the world are the most or least ethnically and nationally diverse. According to their research, B&H is the European country that has the most diversified ethnic population, a country with the largest number of ethnic groups that live within the borders of one country.
Among the other countries in the Balkans, Croatia, Slovenia, Albania, Serbia, Turkey and Greece are ethnically very homogenous countries.
The study was conducted by a group of professors of economy and international relations from the Institute for Economic Research at Harvard University on the basis of data gathered from several sources such as Encyclopedia Britannica, Central Intelligence Agency (CIA) and the International Minority Rights Group. Professors from Harvard conducted the study on 650 ethnic groups in 190 countries in the world, in order to receive a glimpse of the countries that are the most ethnically heterogeneous and which are the most ethnically homogenous or diverse.