STOCKHOLM — Economists David Card, Joshua Angrist and Guido Imbens won the 2021 Nobel economics prize on Monday for pioneering “natural experiments” to show real-world economic impacts in areas from ...

A unique vaccine rollout in Wales gave researchers an accidental natural experiment that revealed a striking reduction in dementia among seniors who received the shingles vaccine. The protective ...

Economics often borrows ideas from the sciences, yet unlike physics or chemistry, no country has ever run a controlled, pure economic experiment on a national scale. A pure experiment requires ...

We explore the effect of (big) shocks on the allocation of (bilateral) aid using natural disasters as natural experiments. We find that aid commitment statistically significantly increases following ...