The Interaction Effect in a Nonlinear Specification of Bank Lending: A Replication and Reexamination of the Peek and Rosengren (2005) Results on 'Unnatural Selection'

Peek and Rosengren (American Economic Review 2005; 95) suggested the mechanism of ``unnatural selection,'' where low-capitalized Japanese banks increase credit to low-quality firms because of their motivation to pursue balance sheet cosmetics. In this study, we replicate their estimation results, using loan-level data from 1994 to 1999, and thereby reexamine this mechanism in terms of the interaction effect in a nonlinear specification of bank lending. We demonstrate that their results imply that Japanese banks allocated lending from viable firms to unviable ones regardless of the degree of bank capitalization, being not consistent with the balance sheet cosmetics hypothesis.