Search Results for author: Philip Marx

Found 3 papers, 0 papers with code

Parallel Trends and Dynamic Choices

no code implementations14 Jul 2022 Philip Marx, Elie Tamer, Xun Tang

Difference-in-differences is a common method for estimating treatment effects, and the parallel trends condition is its main identifying assumption: the trend in mean untreated outcomes is independent of the observed treatment status.

Calibrating for Class Weights by Modeling Machine Learning

no code implementations10 May 2022 Andrew Caplin, Daniel Martin, Philip Marx

A much studied issue is the extent to which the confidence scores provided by machine learning algorithms are calibrated to ground truth probabilities.

BIG-bench Machine Learning Pneumonia Detection

Sharp Bounds in the Latent Index Selection Model

no code implementations4 Dec 2020 Philip Marx

The sharp bounds use the full content of identified marginal distributions, and analytic derivations rely on the theory of stochastic orders.

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