With the expansion of onshore wind power, countries increasingly consider the introduction of minimum distance regulations between wind turbines to nearby residential areas, to increase public acceptance. In 2014, the German federal state of Bavaria introduced a minimum distance regulation that...

We propose a method of retrospective counterfactual imputation in panel data settings with later-treated and always-treated units, but no never-treated units. We use the observed outcomes to impute the counterfactual outcomes of the later-treated using a matrix completion estimator. We propose a...

Attempts to distribute durable, life-improving goods to customers at the Base of the Pyramid (BoP) – the more than three billion customers who live on less than US$2.50/day – through traditional supply chains or e-commerce have struggled to succeed at scale. One hypothesis for why...