The Local Root of Wage Inequality Wages are on average higher in larger cities, yet the real earnings of low-wage workers are lower. Using French administrative data, I document two novel facts. Large cities concentrate high-paying jobs, while low-paying jobs are everywhere. The reallocation of workers across jobs spurs faster wage growth in larger cities. […]

China Shock and the Internal Organization of Firms: Evidence from French Business Groups This paper studies how French business groups reorganize in response to China's rise in global trade. Combining firm- and group-level data on ownership links, foreign affiliates, trade exposure, and occupations, we examine both domestic adjustments in management structure and changes in the […]

In-Group—Out-Group Trust: Origins and Consequences Why do societies differ in the breadth of trust they extend beyond the in-group? This paper argues that historical mobility, specifically, the ecological and institutional demands of transhumant pastoralism, shaped long-run variation in the scope of trust. Combining global data from 104 countries, individual-level surveys, and within-country evidence from Kyrgyzstan […]

Housing Benefits in the Rental Market: Evidence from Spanish Linked Landlord-Tenant Data Room A406.

Is there a threshold effect of money growth on inflation? Room A406

This paper studies the impact of increasing minimum contract length on tenant stability and rental market outcomes. We exploit a 2019 reform in Spain that extended rental contracts from three to five years for individual landlords and to seven years for corporate landlords, using the universe of rental agreements in Catalonia (2016–2024) and a regression […]

Differentiated Products with Endogenous Choice Sets This paper extends the equilibrium model of Berry, Levinsohn and Pakes (BLP, 1995) by endogeneizing the consumers’ choice sets. We introduce an entry stage preceding the Bertrand pricing game where firms choose which products to offer. We show that the demand and cost parameters are identified under selectively offered […]

Room A402.

The seminar has been postponed to a later date.

Title : News Selection by News Aggregators and Incentives for Newspapers to Invest in Journalism: The Case of South Korea Abstract: We study news selection by two prominent Korean news aggregators. For this purpose, we collect all online news articles of 52 national newspapers from South Korea for the year 2015, along with all the […]

Algorithmic Transparency and Portfolio Choices: Field Evidence (with Alexis Direr and Mehdi Louafi) This paper studies whether profile-based explanations influence investors’ acceptance of algorithmic risk recommendations in a randomized controlled trial embedded directly in the platform’s interface of a leading French robo-advisor. Users were assigned either to see graphical explanations of the drivers underlying their […]