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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...
n° 26-1703, janvier 2026
Alex Smolin
Toulouse, janvier 2026, Toulouse
Doh-Shin Jeon
Renjie Bao (Princeton University)
Benoît Chevalier-Roignant et Stéphane Villeneuve
n° 26-1702, janvier 2026
We study the effect of upstream competition and supply shocks on a buyer’s investment decisions, under demand uncertainty. Imperfect upstream competition leads to double marginalization. This effect is mitigated if the supplier pool is larger (when production costs are linear or in case of...
Koen Jochmans
n° 26-1701, janvier 2026
Inference procedures for dyadic data based on two-way clustering rely on the data being exchangeable and dissociated. In particular, observations must be independent if they have no index in common. In an effort to relax this we consider, instead, data where Yij and Ypq can be dependent for all...
Farid Gasmi, Dorgyles Kouakou, Samantha Metevier et Paul Noumba Um
n° 26-1700, janvier 2026
The emigration of highly educated and skilled individuals from low- and middle- to high-income countries has often been synonymous with human capital losses for the countries of origin, a phenomenon known as "brain drain" (Bhagwati and Hamada, 1974). However, under some conditions, these losses can...
Jérôme Bolte, Edouard Pauwels et Quoc Tung Le
vol. 215, janvier 2026, p. 539–574
We first show a simple but striking result in bilevel optimization: unconstrained smooth bilevel programming is as hard as general extended-real-valued lower semicontinuous minimization. We then proceed to a worst-case analysis of box-constrained bilevel polynomial optimization. We show in...
Jean-Paul Azam
n° 1698, janvier 2026
This chapter tries to bridge the gap between peace and conflict theory, on the one hand, and the practice of professional Peacebuilders in post-conflicts settings, on the other hand. It first highlights some of the main insights brought about by the theorists, linking the latter to standard...
