This review article tries to answer four questions: (i) what are the stylized facts about uncertainty over time; (ii …) why does uncertainty vary; (iii) do fluctuations in uncertainty matter; and (iv) did higher uncertainty worsen the Great … Recession of 2007-2009? On the first question both macro and micro uncertainty appears to rise sharply in recessions. On the …

ideological divide, the US seems destined to heightened levels of policy uncertainty for many years to come. Some research … suggests that such uncertainty, particularly over economic policy, partly explains the sluggish nature of the recovery in … America – and - according to one recent study, restoring policy uncertainty to levels that prevailed before the financial …

of factors highlighted in the theory are shown to be important in accounting for delegation, such as heterogeneity and …

, emission reductions accounting contains substantial uncertainty as a result of forest carbon stock estimates, where the … 63% in moist forest and 58% in dry forest. Combining forest carbon stock estimates and uncertainty in voluntary carbon … market prices demonstrates the financial impact of uncertainty: potential revenues over the 20-year project ranged between US …

This paper explores the sources of uncertainty that cause firms to revise their capital investment plans and the stock … market to revise its valuation of those firms. A simple method is developed to decompose the uncertainty governing revisions … idiosyncratic uncertainty, but common disturbances are more important for movements in the stock market rate of return. …

This paper investigates the relationship between infation uncertainty and investment using a panel of loan-level data … aggregates. The data show that periods of increased inflation uncertainty are associated with substantial reductions in total … models of investment under uncertainty. …