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Klaus Nordhausen et Anne Ruiz-Gazen
n° 21-1268, novembre 2021
Scatter matrices generalize the covariance matrix and are useful in many multivariate data analysis methods, including well-known principal component analysis (PCA), which is based on the diagonalization of the covariance matrix. The simultaneous diagonalization of two or more scatter matrices goes...
Andreea Enache, Jean-Pierre Florens et Erwann Sbaï
n° 21-1264, novembre 2021
This paper introduces new methods of identification and estimation of the first-price sealed bid auction model and compares them with the previous existing ones. The first method of estimation allows us to estimate directly (through an iterative algorithm) the cumulative distribution function of...
Francesco Decarolis, Maris Goldmanis, Antonio Penta et Ksenia Shakhgildyan
n° 21-1273, novembre 2021
Bid delegation to specialized intermediaries is common in the auction systems used to sell internet advertising. When the same intermediary concentrates the demand for ad space from competing advertisers, its incentive to coordinate client bids might alter the functioning of the auctions. This...
Céline Nauges, Douadia Bougherara et Estelle Koussoubé
n° 21-1266, novembre 2021
Using a large representative dataset of 4,428 maize farmers from Burkina Faso with information on over 7,800 plots, we study the role of risk and farmers’ risk preferences in their use of nitrogen fertilizers. After characterizing the role of nitrogen on the moments of the maize yield distribution...
Bruno Biais, Florian Heider et Marie Hoerova
vol. 88, n° 6, novembre 2021, p. 2654–2686
In order to share risk, protection buyers trade derivatives with protection sellers. Protection sellers’ actions affect the riskiness of their assets, which can create counterparty risk. Because these actions are unobservable, moral hazard limits risk sharing. To mitigate this problem, privately...
Emmanuelle Auriol et Hillel Rapoport
n° 67, novembre 2021
David Bardey, Samuel Kembou Nzalé et Bruno Ventelou
vol. 191(C), novembre 2021, p. 472–500
We study physicians’ incentives to use personalised medicine techniques, replicating the physician’s trade-offs under the option of personalised medicine information. In a laboratory experiment conducted in two French Universities, prospective physicians played a real-effort game. We vary both the...
Estelle Medous, Camelia Goga, Anne Ruiz-Gazen, Jean-François Beaumont, Alain Dessertaine et Pauline Puech
n° 21-1269, novembre 2021, révision juin 2022
In social and economic surveys, it can be difficult to directly reach units of the target population, and indirect sampling is often advocated to solve this issue. In indirect sampling, the sample is drawn from a frame population that is linked to the target population, and estimation of tar-get...
Aksel Erbahar et Vincent Rebeyrol
n° 21-1265, novembre 2021, révision septembre 2022
This paper shows that manufacturing exporters export goods that they have not produced and thus also act as trade intermediaries. The geographical dimension of the data reveals that almost half of these exports of “sourced” products are purely intermediated: to many destinations, firms export...
Darius-Aurel Frank, Christian T. Elbaek, Caroline Kjaer Borsting, Panagiotis Mitkidis, Tobias Otterbring et Sylvie Borau
vol. 16, n° 11 (e0259928), novembre 2021
The COVID-19 pandemic continues to impact people worldwide–steadily depleting scarce resources in healthcare. Medical Artificial Intelligence (AI) promises a much-needed relief but only if the technology gets adopted at scale. The present research investigates people’s intention to adopt medical AI...
