This paper examines time-series patterns of external financing decisions and shows that publicly traded U.S. firms fund a much larger proportion of their financing deficit with external equity when the cost of equity capital is low. The historical values of the cost of equity capital have long-lasting effects on firms’ capital structures through their influence on firms’ historical financing decisions. We also introduce a new econometric technique to deal with biases in estimates of the speed of adjustment toward target leverage. We find that firms adjust toward target leverage at a moderate speed, with a half-life of 3.7 years for book leverage, even after controlling for the traditional determinants of capital structure and firm fixed effects.

We examine investment banks' networking function in capital markets, using a sample of Private Investments in Public Equity (PIPEs). We argue that investment banks develop relationships with investors through repeat dealings, and that investment banks' networks of relationship investors form the basis of their networking function. We find that investment banks, especially those with larger investor networks, help issuers attract investors. Correspondingly, an issuer that desires more investors is more likely to hire an investment bank than place the shares directly. We also find that issuers pay higher fees to hire investment banks with larger investor networks. Our empirical findings suggest that the networking function of investment banks is important in securities offerings.

Given their actual revenue and spending, most net equity issuers and an overwhelming majority of net debt issuers would face immediate cash depletion without external financing. Debt issuers tend to have short-lived cash needs, while equity issuers often have persistent cash needs. On average, debt issuers immediately spend almost all of the proceeds, while equity issuers retain much of the proceeds in cash. Anticipated near-future cash needs and fixed costs of financing help explain the fraction of the proceeds being retained. Our findings support a funding-horizon theory in which cash needs and the nature of cash needs motivate financing decisions.

A popular view is that private equity (PE) firms tend to expropriate other stakeholders of their portfolio companies. Bonds offered during 1992–2011 by companies after their initial public offerings (IPOs) do not reflect this view. We find that yield spreads on bonds offered by PE-backed companies are, on average, 70 basis points lower, holding other things constant. We also find that PE-backed companies have more conservative investment and dividend policies after bond offerings compared with non-PE-backed companies. These results suggest that PE firms’ reputational concerns dominate their wealth expropriation incentives and help their portfolio companies reduce the costs of debt.