“…In Stein's (1992) theory, the call provision helps high‐quality firms avoid financial distress because they are able to force conversion, in contrast to low‐quality firms, which end up in distress. A convertible bond call is thus a leverage‐decreasing event unrelated to the calling firm's asset structure (Alderson, Betker, and Stock, 2006, p. 898). Therefore, we contend that the theory predicts a decrease in the calling firm's equity beta and no change in the asset beta (i.e., operating risk) following the call.…”