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Conference Agenda

Overview and details of the sessions of this conference. Please select a date or location to show only sessions at that day or location. Please select a single session for detailed view (with abstracts and downloads if available).

Please note that all times are shown in the time zone of the conference. The current conference time is: 10th Sept 2026, 06:50:27pm CEST (Norway)

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Daily Overview

Session

Sustainable agriculture and conservation
Location: Auditorium L: Ingrid Simonnæs
Session Chair: Andreas Gerster, University of Mainz

Presentation 1

Agricultural Productivity and Biodiversity Effects: Theory and Evidence

Chloé Antoine¹, Jean-Marc Bourgeon^2,3, José De Sousa^4,5

1: Institut Polytechnique de Paris, Ecole Polytechnique, CREST; 2: Institut Polytechnique de Paris, Ecole Polytechnique, CREST; 3: INRAE, UMR Paris-Saclay Applied Economics; 4: Sciences Po, LIEPP; 5: Université Paris Pantheon-Assas, LEMMA

Discussant: Zhaoyang Liu (University of Cambridge)

Agricultural specialization maximizes land use efficiency but it also amplifies pest pressure, thereby requiring heavy pesticide use. This paper evaluates the economic benefits of using an ecological approach that recommends reducing specialization to leverage natural pest control. We develop a model in which the resilience of a farmer’s field is endogenous to the crop and pesticide choices of her neighbors, with both same-crop and inter-crop externalities. Using disaggregated data on 40 crops and novel instrumental variables, we then estimate the extent to which cross-field externalities impact crop productivity. Results show that maintaining a high diversity of crop species in a county significantly boosts yields of major crops like maize, rice, and wheat. Eventually, we illustrate the benefits of diversification on production and revenues by simulating alternative farmland distributions.