This study identifies how country differences on a key cultural dimension—egalitarianism—influence international investment flows. A society's cultural orientation toward egalitarianism is manifested by intolerance for abuses of market and political power and a desire for protecting less powerful actors. We show egalitarianism to be based on exogenous factors including social fractionalization, dominant religion circa 1900, and war experience from the 19th century. We find a robust influence of egalitarianism distance on cross-national flows of bond and equity issuances, syndicated loans, and mergers and acquisitions. An informal cultural institution largely determined a century or more ago, egalitarianism exercises its effect on international investment via an associated set of consistent contemporary policy choices. But even after controlling for these associated policy choices, egalitarianism continues to exercise a direct effect on cross-border investment flows, likely through its direct influence on managers' daily business conduct.

We use a US Supreme Court case, Morrison v. National Australia Bank (2010), as a natural experiment to test the legal bonding hypothesis. By decreasing the potential liability of US-listed foreign firms, particularly due to class action lawsuits, Morrison arguably eroded their legal bonding to compliance with disclosure duties. Nevertheless, we find evidence of an increase or insignificant change in share values. Tests of longer-run effects of the legal event indicate that foreign firms’ disclosure quality and likelihood of facing enforcement actions remained stable, as did investors’ revealed preferences for trading on US markets. These results go against the legal bonding hypothesis but are consistent with reputational bonding and with market-based accounts of US cross-listing. Our results may contribute to ongoing debate about civil enforcement of securities laws through class actions.