Donald R. Davis, Jonathan Dingel, Joan Monras, Eduardo Morales, 24 October 2017

Smart devices and online activity generate a stream of data describing human behaviour in great detail. Social scientists can tap such data to examine previously unexplored topics. This column uses online restaurant reviews to measure consumption segregation. In New York City, restaurant consumption is considerably more racially integrated than residences. A substantial share of consumption segregation is attributable to the fact that consumers are less likely to visit restaurants in neighbourhoods with demographics unlike their own.

Alberto Cavallo, Roberto Rigobon, 24 April 2016

Big Data is changing the world, even economics. This column describes MIT’s Billion Prices Project and discusses key lessons for both inflation measurement and some fundamental research questions in macro and international economics. Online prices can be used to construct daily price indexes in multiple countries and to help avoid measurement biases. 

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