This paper identifies the macroeconomic factors that influence Italian equity returns and tests the stability of their relation with securities returns. The relation between stock returns and the macroeconomic factors is found to be unstable: Not only are the factor loadings of individual...

We study the impact of climate volatility on economic growth exploiting data on 133 countries between 1960 and 2005. We show that the conditional (ex ante) volatility of annual temperatures increased steadily over time, rendering climate conditions less predictable across countries, with...