Banning sodas from school vending machines, building walking paths and playgrounds, adding supermarkets to food deserts and requiring nutritional labels on restaurant menus: Such changes to the ...

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 ...

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 ...