This paper tests a composite empirical model of cross-border acquisitions involving UK firms between 1987-1995 using panel data analysis. The empirical model includes capital market variables and regulatory variables derived from the existing literature. The results show that models that explain cross-border acquisitions through capital market imperfections are not significant. Cross-border activity has a strong relationship with the level of the UK stock market suggesting that crossborder acquisitions are, in some part, an extension of domestic activity. Corporate tax differentials also have significant impact on activity.