In this study, we examine the impact of liquidity support from the Federal Reserve on the capital structures of firms of varying sizes. Our findings suggest that large firms tend to increase their debt financing and leverage ratios in response to significant shocks triggered by the large-scale asset purchases (LSAPs) of the US Federal Reserve. By contrast, small firms with preexisting banking relationships are more likely to receive liquidity support. Notably, small firms associated with smaller banks exhibit increased default risks. Furthermore, large firms exhibited weaker operating performance but received greater managerial compensation following the LSAP. This trend indicates potential inefficiencies in the distribution of funding facilitated by unconventional monetary policies.

We examine the effect of quantitative easing on the supply of bank loans. During the Fed’s quantitative easing programs, lending banks reduced relatively more loan spreads, offered longer loan maturities, provided larger loans, and loosened more covenants for firms whose long-term bond ratings were below BBB and were lower than those with investment-grade bond ratings. Furthermore, we find that new bank loans in this period were associated with a reduction in a firm’s value and an increase in default risk. These results indicate that banks took greater risk during the 2008 quantitative easing by relaxing lending standards to relatively riskier borrowers.