We show that state right-to-work (RTW) laws significantly encourage corporate innovations in terms of patent grant and citation count. Consistent with the conjecture that the RTW-treated firms conduct more innovations due to their decreased financial distress risk, we find that the RTW adoption also significantly decreases treated firms' financial distress risk ex post, and its treatment effect on innovation outputs is stronger for treated firms that are ex ante more likely to experience financial distress. Further analysis indicates that treated firms intensify research and development expenditures and, likely due to their improved innovations, enhance their competitiveness in product markets.

This research exploits Australia's ratification of the Kyoto Protocol, which mandates the country to reduce carbon emissions, thereby exposing Australian firms to increased carbon risk, as a quasi-natural experiment to examine the causal effect of carbon risk on firm capital structure. We find that the Kyoto Protocol ratification leads to a decrease in financial leverage of heavy carbon emitting firms and such a decrease is more pronounced for financially constrained firms. Further analysis indicates that increased carbon risk leads to higher financial distress risk, which motivates firms to decrease financial leverage.

We examine the role of carbon risk in dividend policy, and how its effect varies between imputation (paying franked dividends) and classical (paying unfranked dividends) tax environments in the unique experimental setting in Australia. We find that the probability of paying dividend and dividend payout ratio is lower for firms in the highest-emitting industries (polluters) relative to non-polluters, subsequent to ratification of the Kyoto Protocol. While the post-Kyoto reduction in the likelihood of paying dividend is not significantly different, the reduction in payout ratio is smaller in the imputation environment than classical tax system, highlighting the significance of imputation tax environment only on the impact of carbon risk on dividend payout rather than decision to pay. We further document that the post-Kyoto reduction in dividend payout of polluters is driven by their relative increase in earnings uncertainty. The evidence suggests a causal influence of carbon risk on firm dividend policy.