We examine whether banks better protect themselves against risk-shifting as compared to non-bank lenders by comparing risk management polices across firms that borrow from different lenders using a unique, hand-collected data set of hedging and borrowing practices. Consistent with banks being effective monitors, we find hedging is positively associated with the proportion of bank debt amongst firms with large risk-shifting incentives. We present descriptive evidence showing that banks use covenants as one of the channels to mitigate risk-shifting.

This paper documents a new channel for rating-based bond market segmentation, which, in contrast to prior research, is based on nonregulatory investment management practices. A 2005 Lehman Brothers index redefinition provides a quasinatural experiment in which a number of previously high-yield split-rated bonds were mechanically relabeled as investment grade. Although their regulatory standing was unaffected, these bonds had abnormal yield declines of 21 basis points. These valuation changes can be traced to buying by asset-class-sensitive institutional investors for whom these bonds became investable. Reputation, regulation, indexation, and liquidity cannot explain the observed price and trading patterns. (JEL G12, G14)