In additional tests (not tabulated), we find further support for the importance of enforcement
changes by examining cross-sectional differences among the five IFRSEU_ENF countries.
Presumably, if IFRS reporting played a primary role, we should find bigger effects in countries
for which the switch to IFRS resulted in bigger changes in the accounting standards. Using the
Bae et al. (2008) measure for accounting differences between IFRS and pre-existing GAAP, we
find the opposite result. That is, the liquidity effects are generally larger in countries with
smaller GAAP differences, which is inconsistent with explanation (i). But as the cross-sectional
variation is limited to five countries, this result should be interpreted cautiously