“…One explanation for this pattern is that fiscally weak cities and states expelled Jews in order to satisfy revenue needs (Elman, 1937;Schwarzfuchs, 1967;Veitch, 1986;Barzel, 1992). Others argue that Jews were expelled in response to heightened religious fervor in the late medieval period (Grazel, 1966;Langmuir, 1990;Stow, 1992;Menache, 1997;Bell, 2001) or as part of a project of constructing a religiously or ethnically homogeneous state (Baron, 1967a;Katznelson, 2005;Barkey and Katznelson, 2011); or to a confluence of these factors as Moore (1987) argued in his Formation of a Persecuting Society. Alternatively, Poliakov (1955) attributed the decline in the fortunes of European Jewry in the fourteenth century to the series of calamities that befell Europe from the Great Famine of 1315-1322 to the Black Death and numerous individual accounts of specific persecutions or pogroms cite that the role played by economic hardship, natural disasters and bad weather in triggering particular persecutions or expulsions (Barber, 1981a;Cohn, 2007;Slavin, 2010;Voigtländer and Voth, 2012).…”