significant amplifying role for market uncertainty in the relation between sentiment and aggregate investment. A one …-standard-deviation increase in uncertainty more than doubles the effect of sentiment on investment. Moreover, allowing uncertainty …The effects of sentiment should be strongest during times of heightened valuation uncertainty. As such, we document a …

This study investigates the short- and long-term effects of various sources of uncertainty on the share prices of key … other relevant approaches to time series. Economic policy, climate policy, pandemics, and Twitter-based uncertainty may … China, geopolitical, climatic, and pandemic uncertainty are short-term sources of uncertainty, and in India, economic policy …

Many commentators argue that uncertainty about tax, spending, monetary and regulatory policy slowed the recovery from … the 2007-2009 recession. To investigate this we develop a new index of economic policy uncertainty (EPU), built on three … components: the frequency of newspaper references to economic policy uncertainty, the number of federal tax code provisions set …

, a much stronger impact on stock market prices comes from the pre-IPO news tone. Interestingly, the more uncertainty …