transmission and persistence of attitudes comes from Bisin and Verdier, who state that children acquire their preference scheme through imitating their parents, who in turn attempt to socialize their children to their own preferences, without taking into consideration if these traits are useful or not. Economic factors had the potential to undermine this persistence throughout the centuries. Hatred against outsiders was more costly in trade open cities, like the members of the Hanseatic League. Faster growing cities saw less persistence in antisemitic attitudes, this may be due to the fact that trade-openness was associated with more economic success and therefore higher migration rates into these regions Jews in Germany from 1945 to the reunification When the Red Army took over Berlin in late April 1945, only 8,000 Jews remained in the city, all of them either in hiding or married to non-Jews. Most German Jews who survived the war in exile decided to remain abroad; however, a small number returned to Germany. Additionally, approximately 15,000 German Jews survived the concentration camps or survived by going into hiding. These German Jews were joined by approximately 200,000 displaced persons (DPs), Eastern European Jewish Holocaust survivors. They came to Allied-occupied western Germany after finding no homes left for them in eastern Europe or after having been liberated on German soil. The overwhelming majority of the DPs wished to emigrate to Palestine and lived in Allied- and UNRRA-administered displaced persons camps, remaining isolated from German society. When Israel became independent in 1948, most European-Jewish DPs left for the new state; however, 10,000 to 15,000 Jews decided to resettle in Germany. Despite hesitations and a long history of antagonism between German Jews (Yekkes) and East European Jews (Ostjuden), the two disparate groups united to form the basis of a new Jewish community. In 1950 they founded their unitary representative organization, the Central Council of Jews in Germany. Jews of West Germany The Jewish community in West Germany from the 1950s to the 1970s was characterized by its social conservatism and generally private nature. Although there were Jewish elementary schools in West Berlin, Frankfurt, and Munich, the community had a very high average age. Few young adults chose to remain in Germany, and many of those who did married non-Jews. Many critics of the community and its leadership accused it of ossification. In the 1980s, a college for Jewish studies was established in Heidelberg; however, a