Legal precedents set by courts significantly influence how firms report their financial information and navigate litigation risks. HKUST’s Allen H. Huang and colleagues ask how the rulings of U.S. courts—whether defendant-friendly or plaintiff-friendly—impact firms’ incentive to misreport. Their study reveals a link between the legal environment and financial transparency that has important implications for investors and regulators.

“Securities class actions (SCAs), which allow investors to recoup investment losses caused by violations of federal securities laws, are a significant source of legal liability for U.S. firms,” say the researchers. In theory, SCAs should deter misreporting, but in practice their impact depends on how courts interpret the law through past rulings.

To help resolve this ambiguity, the researchers develop a novel measure of judicial attitudes based on circuit court precedents and their defendant-friendliness, allowing them to analyze how these legal environments influence firm behavior. “We exploit variations in securities law precedents across the U.S. Courts of Appeals—the circuit courts—to examine how regional courts’ ruling histories affect firms’ legal liability associated with financial misreporting,” the authors explain.

Their results provide systematic evidence that U.S. circuit courts’ defendant-friendliness shapes firms’ litigation environments. “Financial misreporting firms located in circuits with more defendant-friendly precedents are less likely to face SCAs,” the researchers specify, “especially for non-egregious misreporting when managers’ intentions to mislead investors are more difficult to judge.” These results are consistent with the hypothesis that managers incorporate courts’ attitudes into their financial reporting decisions.

These illuminating findings may inform regulators’ enforcement decisions and investors’ investment decisions. As defendant-friendly precedents can reduce perceived litigation risk, leading firms to weaken their controls and pursue aggressive reporting, regulators should focus on aligning enforcement with judicial attitudes. Meanwhile, investors can better gauge firm risk by factoring in the legal climate shaped by circuit court rulings.