We investigate the effect of uncertainty on investment. We employ a unique dataset of 25000 Greek firms' balance sheets … uncertainty. The investment performance of 14 sectors is examined within a dynamic investment model. Robust GMM estimates of the … investment rate model reveal a high degree of heterogeneity among these sectors. Overall uncertainty affects negatively …

fundamentalists and chartists co-exist and are subject to regret and uncertainty. We find significant evidence that energy markets are … composed by heterogeneous traders which behave differently depending on the intensity of the price fluctuations and uncertainty …

Purpose: We investigate the nature and degree of US economic policy uncertainty spillover on the stock markets of a … to explore the nature and degree of US economic policy uncertainty spillover on the stock markets of the GCC countries ….Findings: We find that an unexpected increase in the US economic policy uncertainty significantly decreases the stock market index …

uncertainty shocks stemming from geopolitical swings in South Korea. We construct robust instrumental variables for examining the … variations in uncertainty due to geopolitical swings by observing high-frequency changes in financial asset returns and their … uncertainty has a negative (positive) impact on macroeconomic outcomes in South Korea. We provide evidence that financial and …

With model uncertainty characterized by a convex, possibly non-dominated set of probability measures, the investor …