Konrad Burchardi, Thomas Chaney, Tarek Hassan, 12 November 2016

The economic effects of the unprecedented levels of international migrations over the past few years are at the centre of political debates about immigration policy. This column evaluates the causal effect of migration on foreign direct investment using immigration patterns to the US going back to the 19th century. Foreign direct investment is found to follow the paths of historical migrants as much as it follows differences in productivity, tax rates, and education. The results suggest a mechanism of information flow facilitation, and that the effect of ancestry on foreign direct investment is very long-lasting.

Enrico Spolaore, Romain Wacziarg, 27 June 2015

Cultural transmission occurs both vertically – from one generation to the next – and, increasingly in modern times, horizontally – within generations and across populations. Using novel data for 74 countries, this column explores how genetic relatedness between populations affects the transmission of cultural traits. A pattern of positive and significant relationships is found between genetic distance and various measures of cultural distance, including language, religion, values, and norms. This implies that populations that are ancestrally closer face lower barriers to learning new ideas and behaviours from each other.

Enrico Spolaore, Romain Wacziarg, 03 October 2013

There is now widespread agreement that ‘deep’ history matters for comparative development. Recent research has shown that ancestry – the transmission of genetic and cultural traits across generations – matters more than the history of geographic regions. This column argues that long-term divergences in inherited traits can create barriers to the diffusion of technology. The greater a population’s genetic distance to the population on the technological frontier, the lower its relative income will be. Development policies should aim at reducing barriers to exchange and communication.


CEPR Policy Research