9 November 2017
and Catherine Tucker
study the length of time that search engines retained their server logs, and find that possession of historical data confers only a modest advantage for maintaining market share and that it does not significantly affect the accuracy of search.
8 November 2017
About 10 percent of world GDP is held in tax havens. Because offshore wealth is very concentrated at the top, accounting for it increases estimates of the top 0.01 percent’s wealth share substantially in Europe, even in countries that do not use tax havens extensively, according to a study by Annette Alstadsæter
, Niels Johannesen
, and Gabriel Zucman
7 November 2017
An increase in mathematics and science high school graduation requirements has significant negative impacts on alcohol consumption among high-school students, especially males and non-white students, a study by Zhuang Hao
and Benjamin W. Cowan
6 November 2017
Does an expansion in credit supply affect the economy by increasing productive capacity, or by boosting demand? Atif Mian
, Amir Sufi
, and Emil Verner
find that the stronger expansion in credit supply in early bank deregulation states primarily boosted local demand, especially by households.
3 November 2017
Working with rich micro-data covering the global market for crude oil from 1970 to 2014, John Asker
, Allan Collard-Wexler
, and Jan De Loecker
find that productive misallocation attributable to market power exerted by the OPEC ranged from 14.1 percent to 21.9 percent of the total productive inefficiency, or $105 billion to $163 billion.