The European Marriage Pattern (EMP), in place in NW Europe for perhaps 500 years, substantially limited fertility. But how could such limitation persist when some individuals who deviated from the EMP norm had more children? If their children inherited their deviant behaviors, their descendants...

There exists a wide range of studies which argues that the low growth experience of developing countries is due to high ethnic fractionalization. On the other hand, there is a large literature which suggests that the existence of co-ethnic networks has a large positive impact on trade and thus...