Figure 1
Figure 1: Spread between Baa and Aaa Corporate Yields
Note. Shaded vertical bars denote NBER-dated recessions.
are excessively sensitive to movements in balance sheet variables like cash flow and
net worth.3 These results, although generally consistent with the existence of credit
market imperfections, do not provide direct evidence of the magnitude of agency
costs, leaving the question of the empirical relevance of financial market imperfections
generally unanswered.
In this paper, we use a new firm-level dataset to quantify the magnitude of finan-
cial market fricions. Our panel includes more than 900 large firms over the period
1997Q1 through 2003Q3 and covers a significant portion of the nonfarm nonfinancial
corporate sector. The novel feature of our dataset is that it links balance sheet in-
formation to credit spreads on publicly-traded corporate debt and to market-based
3 This approach has been motivated by the failure of the Q-model of investment to account
adequately for firm-level investment dynamics, a result often attributed to the misspecification
caused by the effects of credit market imperfections. The empirical strategy typically relies on an
a priori chosen proxy for the severity of informational problems in credit markets (e.g., firm size, the
presence of bond rating, etc.) to classify firms into “credit constrained” and “credit unconstrained”
groups. Under the null hypothesis of no credit market frictions, cash flow and other balance sheet
variables should not have a differential effect on investment spending of the two sets of firms; see
Hubbard (1998) for a comprehensive of review of this literature. An alternative interpretation of the
role of cash flow in investment equations that does not rely on credit market frictions is provided by
Kaplan and Zingales (1997) and Cummins, Hassett, and Oliner (1999).