Recherche avancée

Perrin Lefebvre et David Martimort

n° 26-1706, janvier 2026

This paper develops a model of niche lobbying in which interest groups endogenously specialize in the acquisition of distinct types of policy-relevant information. Contrary to the view that niche strategies are chosen to soften competition and secure autonomy, we show that specialization arises as...

Louise Guillouet et David Martimort

n° 26-1705, janvier 2026

This paper develops a model of niche lobbying in which interest groups endogenously specialize in the acquisition of distinct types of policy-relevant information. Contrary to the view that niche strategies are chosen to soften competition and secure autonomy, we show that specialization arises as...

David Martimort et Aggey Simons (Semenov)

n° 26-1704, janvier 2026

We study a repeated buyer-seller relationship with persistent adverse selection and one-sided enforcement, where a prepaid seller can breach by taking the money and running. The optimal stationary contract depends on enforcement strength and the discount factor. Three regimes arise. With a strong...

David Bardey, Philippe De Donder et Marie-Louise Leroux

janvier 2026

We study a situation where physicians differing in their degree of altruism exert a diagnostic effort before deciding whether to test patients to determine the most appropriate treatment. The diagnostic effort generates an imperfect private signal of the patient’s type, while the test is perfect....

Simon Fan, Yu Pang et Pierre Pestieau

janvier 2026, 32 pages

This paper analyzes the effect of longevity on parenting choices from a life course perspective. We develop an overlapping generations model to address a core tradeoff that young parents face when investing in their children’s human capital. They can choose a low-time-cost demanding strategy that...

Tristan Earle Grupp, Prakash Mishra, Mathias Reynaert et Arthur Van Benthem

janvier 2026, à paraître

The European Union designates 26% of its landmass as protected areas, limiting economic development for biodiversity. We use the staggered introduction of protected areas between 1985 and 2019 to study the selection of protected land and the causal eect of protection on vegetation cover and...

Tristan Earle Grupp, Prakash Mishra, Mathias Reynaert et Arthur Van Benthem

n° 26-1703, janvier 2026

The European Union designates 26% of its landmass as protected areas, limiting economic development for biodiversity. We use the staggered introduction of protected areas between 1985 and 2019 to study the selection of protected land and the causal eect of protection on vegetation cover and...

Alex Smolin

Toulouse, janvier 2026, révision 10 juin 2026, Toulouse

Doh-Shin Jeon

Toulouse, janvier 2026, révision 10 juin 2026, Toulouse

Renjie Bao

Toulouse, janvier 2026, révision 10 juin 2026, Toulouse