During the Great Moderation, macroeconomic volatility declined while firm markups increased. We document a causal relationship between volatility and markups due to tacit collusion. We exploit the legalisation of interstate banking as an exogenous decrease in volatility. Using an instrumental...

This study analyzes the sensitivity of US giving to both business cycle fluctuations and trend growth. With tax revenues as a point of reference, US giving constitutes a relatively stable source of revenue. Total giving is characterized by a business cycle volatility which is comparable to the...