"Notches --- where small changes in behavior lead to large changes in a tax or subsidy --- figure prominently in many policies, but have been rarely examined by economists. In this paper, we analyze a class of notches associated with policies aimed at improving vehicle fuel economy. We provide...

We study the optimal observability of the tax base within the standard linear income tax problem, where observability is determined by the government’s investment into the accurate measurement of the tax base. We characterize the optimal level of observability and derive a new expression for...