Jan De Loecker is Full Professor of Economics at the KU Leuven, a Research Associate at the NBER and a Research Fellow at the CEPR. He obtained his PhD in economics from KU Leuven in 2006. He was on the faculty of NYU from 2006-2008, before moving to Princeton University, where he was on the faculty from 2008-2017. He was a visiting professor at Yale University and Stanford University. 

He specializes in the areas of industrial organization, international economics and development economics. His research is centered around measuring, and identifying the drivers of firm performance. In particular, he has put forward empirical frameworks to estimate productivity, marginal costs and markups, using micro-level production data. These methods have been used to study the role of technology, market power, international competition, in shaping the performance of individual producers, and industries and economies at large. 

He has published in leading journals, such as the American Economic Review, Econometrica, Journal of Political Economy, Quarterly Journal of Economics, and various field journals.

In 2016, he was awarded with an Odysseus (Type 1) Research Grant from the Flemish Research Council, and in 2019 he obtained a Consolidator ERC Grant (Market Power). 

He has advised various international agencies and corporations on performance, development and productivity issues.