The identification of average causal effects of a treatment in observational studies is typically based either on the unconfoundedness assumption or on the availability of an instrument. When available, instruments may also be used to test for the unconfoundedness assumption (exogeneity of the...

The identification of average causal effects of a treatment in observational studies is typically based either on the unconfoundedness assumption or on the availability of an instrument. When available, instruments may also be used to test for the unconfoundedness assumption (exogeneity of the...

This paper examines the costs of recent sovereign defaults using synthetic control methods, a novel econometric technique based on comparative case studies. Evidence on the effects of debt crises is thus presented on a case-by-case basis, uncovering large variations in country-specific...