TY - JOUR AU - Greenwood,Robin AU - Hanson,Samuel AU - Stein,Jeremy C. TI - A Gap-Filling Theory of Corporate Debt Maturity Choice JF - National Bureau of Economic Research Working Paper Series VL - No. 14087 PY - 2008 Y2 - June 2008 UR - http://www.nber.org/papers/w14087 L1 - http://www.nber.org/papers/w14087.pdf N1 - Author contact info: Robin Greenwood Harvard Business School Soldiers Field Boston, MA 02163 Tel: 617/495-6979 E-Mail: rgreenwood@hbs.edu Samuel Hanson Harvard Business School Soldiers Field Road Boston, MA 02163 E-Mail: shanson@hbs.edu Jeremy C. Stein Department of Economics Harvard University Littauer 209 Cambridge, MA 02138 Tel: 617/496-6455 Fax: 617/496-7352 E-Mail: jeremy_stein@harvard.edu AB - We argue that time-series variation in the maturity of aggregate corporate debt issues arises because firms behave as macro liquidity providers, absorbing the large supply shocks associated with changes in the maturity structure of government debt. We document that when the government funds itself with relatively more short-term debt, firms fill the resulting gap by issuing more long-term debt, and vice-versa. This type of liquidity provision is undertaken more aggressively: i) in periods when the ratio of government debt to total debt is higher; and ii) by firms with stronger balance sheets. Our theory provides a new perspective on the apparent ability of firms to exploit bond-market return predictability with their financing choices. ER -