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DTSTART;TZID=Europe/Helsinki:20240129T121500
DTEND;TZID=Europe/Helsinki:20240129T133000
DTSTAMP:20260817T115607
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SUMMARY:Gökce Gökkoca (TSE) "Antibiotic Stewardship in Primary Care: Evidence from Pay-for-Performance in France"
DESCRIPTION:Applied Seminar \nTime: 12:15 pm – 13:30 pm\nDate: 29th of January\nRoom : 3001 \n  \nGökce Gökkoca (TSE) “Antibiotic Stewardship in Primary Care: Evidence from Pay-for-Performance in France” \nAbstract :This paper investigates whether financial incentives for curbing antibiotic prescriptions are effective and how the design of incentives plays a role in influencing physician behavior. Using prescription-level data from French general practitioners over six years\, I provide evidence of the incentives’ effectiveness by exploiting variation in the set of diseases that the physicians treat as well as in the reward scheme. To understand how they respond\, I propose a model that incorporates financial incentives into physician’s decision-making and test the predictions of the model. The results highlight that the reduction in antibiotic prescriptions varies across different diseases\, in line with the physicians’ altruism and\, hence\, the patient’s needs. Moreover\, forward-looking physicians are influenced by the marginal cost of antibiotic prescriptions and the design of the incentives. While the program is effective\, the magnitude is moderate\, with a 2 percentage point drop in the antibiotic prescription rate. Comparing the effect to the cost of the program\, conditioning the rewards on prescription rates rather than the improvement over time plays a role. As a result\, while aggregate bonus payments per physician remain modest (on average 0.2% of physicians’ annual income)\, the cost per avoided prescription is substantial (on average 56% of the fixed visit fee). \nOrganizer: Michael VISSER \n
URL:https://crest.science/event/gokce-gokkoca-tse-antibiotic-stewardship-in-primary-care-evidence-from-pay-for-performance-in-france/
CATEGORIES:Applied Seminar,Seminars
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DTSTART;TZID=Europe/Helsinki:20240129T140000
DTEND;TZID=Europe/Helsinki:20240129T151500
DTSTAMP:20260817T115607
CREATED:20231222T093753Z
LAST-MODIFIED:20240118T150210Z
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SUMMARY:Gabriel PEYRE (Ecole Normale Supérieure) - Conservation Laws for Gradient Flows
DESCRIPTION:Statistical Seminar: Every Monday at 2:00 pm.\nTime: 2:00 pm – 3:15 pm\nDate: 29th January of 2024\nPlace : 3001 \n  \nGabriel PEYRE (Ecole Normale Supérieure) – Conservation Laws for Gradient Flows \n  \nAbstract: \nUnderstanding the geometric properties of gradient descent dynamics is a key ingredient in deciphering the recent success of very large machine learning models. A striking observation is that trained over-parameterized models retain some properties of the optimization initialization. This “implicit bias” is believed to be responsible for some favorable properties of the trained models and could explain their good generalization properties. In this talk I will first rigorously expose the definition and basic properties of “conservation laws”\, which are maximal sets of independent quantities conserved during gradient flows of a given model (e.g. of a ReLU network with a given architecture) with any training data and any loss. Then I will explain how to find the exact number of these quantities by performing finite-dimensional algebraic manipulations on the Lie algebra generated by the Jacobian of the model. In the specific case of linear and ReLu networks\, this procedure recovers the conservation laws known in the literature\, and prove that there are no other laws. \nThe associated paper can be found here https://arxiv.org/abs/2307.00144 and the open source code is here https://github.com/sibyllema/Conservation_laws.This is a joint work with Sibylle Marcotte and Rémi Gribonval. \n  \nOrganizers:\nCristina BUTUCEA (CREST)\, Anna KORBA (CREST)\, Karim LOUNICI (CMAP) \, Jaouad MOURTADA (CREST) \nSponsors:\nCREST-CMAP \n
URL:https://crest.science/event/gabriel-peyre-ecole-normale-superieure-to-be-announced/
CATEGORIES:Statistics
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