Credit Ratings and Capital Structure

This paper examines to what extent credit ratings directly affect capital structure decisions. The paper outlines discrete costs/benefits associated with firm credit rating level differences, and tests whether concerns for these costs/benefits directly affect debt and equity financing decisions. The tests find that firms near a rating upgrade or downgrade issue less debt relative to equity than firms not near a rating change. This behavior is consistent with discrete costs/benefits of rating changes, but not explained by traditional capital structure theories. The results persist in the context of previous empirical tests of the pecking order and tradeoff capital structure theories.