Publications

Published work

Shipping costs vs Shelves, who wins ?

Published in , 2024

On 30 December 2021, the so-called Darcos Law was passed in France. Effective from October 2023, it will impose a minimum delivery charge of €3 for all book orders under €35, regardless of the delivery method. The stated aim is to support the purchase of books in physical outlets, whereas in recent years many consumers have increasingly turned to the major e-commerce platforms. We use data from this event to assess whether measures impacting shipping costs of books are efficient regarding platform regulation.

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Loaf and Order : The Victorian Internet and Wheat Market Integration in 19th Century France

Published in , 2023

With Marc Bourreau and Lukasz Grzybowski. The Chappe telegraph, also known as the optical telegraph, was a communication system developed and used in France between 1794 and the 1850s. It relied on visual signals trans- mitted along lines of semaphores to disseminate administrative information. In this paper, we analyze whether the development of the Chappe telegraph contributed to the integration of the French wheat market between 1807 and 1851. Our findings indicate that departments connected to the Chappe telegraph network had, on average, lower prices and reduced price dispersion. Prices also converged faster in departments connected to the Chappe network before 1807 compared to those that were never connected. Thus, improved administrative information dissemination had a positive impact on market efficiency.

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Connecting Votes, Exploring the Impact of Broadband Infrastructure De- ployment on Voter Behavior

Published in , 2023

With Marc Bourreau and Lukasz Grzybowski. This paper aims to study the effect of network infrastructure such as broadband internet over voters behavior at a local level. Using data on municipal elections between 2008 and 2020 as well as fiber network deployment data in France, we estimate the probability of an incumbent mayor to be reelected or not to be reelected. The outcomes of the Heckman models with instrumental variables yield that the effect of fiber deployment is heterogeneous among french municipalities, depending on their size, their geographic situation or even their political commitment. Overall, it appears that incumbent mayors are punished by their electors when fiber is not developed while there is a national plan.

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