 The book discusses 3 economic aspects of the Jewish people, from the destruction of the second temple until the expulsion from Spain – the transfer from agriculture to trade work and the rest of the urban professions, creating the Jewish Diaspora and diluting the Jewish population especially after the destruction of the second temple and till the 7th century.The book was co-written with Maristella Botticini, head of the Gasparini Institute for Economic Research (IGIER) at Bocconi University in Milan.It was published first in English at Princeton University Press in 2012.