It’s impossible to contain covid-19 without knowing who’s infected: until a safe and effective vaccine is widely available, stopping transmission is the name of the game. While testing capacity has ...

A visitor perusing the fifth floor of France’s Centre Pompidou will encounter two very different compositions in short succession. Wassily Kandinsky’s Picture with a Black Arch is a hodgepodge of ...

We leverage insights from machine learning to optimize the tradeoff between bias and variance when estimating economic models using pooled datasets. Specifically, we develop a simple algorithm that ...