This note lays out the basic Susceptible-Infected-Recovered (SIR) epidemiological model of contagion, with a target audience of economists who want a framework for understanding the effects of social distancing and containment policies on the evolution of contagion and interactions with the...

We estimate peer effects for fourth graders in six European countries. The identification relies on variation across classes within schools. We argue that classes within primary schools are formed roughly randomly with respect to family background. Similar to previous studies, we find sizeable...

This paper presents a synopsis of recent NBER studies of the history of corporate governance in Canada, China, France, Germany, Japan, India, Italy, the Netherlands, Sweden, the United Kingdom, and the United States. Together, the studies underscore the importance of path dependence, often as...

By age 77 a plurality of women in wealthy Western societies are widows. Comparing older (aged 70+) married women to widows in the American Time Use Survey 2003-18 and linking the data to the Current Population Survey allow inferring the short- and longer-term effects of an arguably exogenous...

We study how within-store price variation changes with inflation, and whether households exploit it to attenuate the inflation burden. We use micro price data for food products sold by 91 large multi-channel retailers in ten countries between 2018 and 2024. Measuring unit prices within narrowly...

The first global financial bubble in stock prices occurred 1720 in Paris, London and the Netherlands. Explanations for these linked bubbles primarily focus on the irrationality of investor speculation and the corresponding stock price behavior of two large firms: the South Sea Company in Great...

This paper brings together two strands of the economic literature -- that on the finance-growth nexus and that on capital market integration -- and explores key issues surrounding each strand through both institutional/country histories and formal quantitative analysis. We begin with studies of...

Using a new survey of European households, we study how exogenous variation in the macroeconomic uncertainty perceived by households affects their spending decisions. We use randomized information treatments that provide different types of information about the first and/or second moments of...

Many households hold little wealth, especially liquid wealth. In precautionary savings models, absent preference heterogeneity, these households should display not only higher marginal propensities to consume (MPCs), but also lower average propensities to consume (APCs) and higher future...

We estimate the impact of the COVID-19 crisis on business failures among small and medium size enterprises (SMEs) in seventeen countries using a large representative firm-level database. We use a simple model of firm cost-minimization and measure each firm's liquidity shortfall during and after...