This Paper highlights a problem in using the first-differenced GMM panel data estimator to estimate cross-country growth regressions. When the time series are persistent, the first-differenced GMM estimator can be poorly behaved, since lagged levels of the series provide only weak instruments...

This Paper investigates the empirical relationship between uncertainty and investment dynamics. This is motivated by the real options literature, which suggests a weaker response of investment to demand shocks at higher levels of uncertainty, as firms place a greater value on the option to wait....

Academic and policy debates generally consider levying tax on corporate profit on either a residence basis or on a source basis. We explore two alternatives, based on the location of consumption, rather than production – destination-based, as opposed to source-based or residence-based, taxes....