generates two main predictions: long-run unemployment increases with (i) a fall in long-run productivity growth and (ii) a rise … in the variance of productivity growth. Evidence based on U.S. time series and on an international panel strongly … supports these predictions. The empirical specifications featuring the variance of productivity growth can account for two U …

This paper documents a decreasing trend in the geographical concentration of EU agro-food imports. Decomposing the … their agri-food products from a wider range of suppliers), while geographical concentration increases at the intensive … food alerts at the EU border that had never been exploited before. After coding it into HS8 categories, we regress the …

and volatility in contrast to the exogenously assumed constant mean and volatility in many credit risk models. We consider … attenuated (amplified) market volatility and risk premium, but the market value is always higher in economic downturns, and lower …

dampening effect on trade volatility. …

misaligned exchange rates, appear to have suffered more macroeconomic volatility and also grown more slowly during the postwar … more ‘extractive’ institutions from their colonial past were more likely to experience high volatility and economic crises … appear to have only a minor impact on volatility and crises. This suggests that distortionary macroeconomic policies are more …

outside the Union. The analysis indicates the need to distinguish between short-term oscillations (i.e. volatility) and medium …

commensurate with their risk aversion; more risk-averse individuals pick lower-volatility stocks. The investors' portfolio … consistent with the predictions of the hypothesis: the portfolios contain highly similar stocks in terms of volatility, when …