Securitization and risk appetite: empirical evidence from US banks

Abstract

I investigate the impact of securitization on the risk-taking by bank holding companies (BHCs). For 2001 to 2017, I find a negative relationship between securitization and the risk appetite of BHCs. I find a negative relationship between securitization and the risk appetite of BHCs that is consistent with the recourse hypothesis of securitization. I also discover that the equilibrium in this relationship changes from the pre-crisis to the crisis period (crisis effect). This crisis effect hampers BHCs’ ability to engage in securitization that leads them to accumulate more risky assets on their books due to the deteriorated quality of their loan portfolios. This equilibrium then reverses after the crisis (post-crisis effect) due to policy makers’ response to the excessive risk-taking that manifested during the crisis. Moreover, I find that the securitization of residential mortgages not only boosts the recourse hypothesis but also triggers the crisis effect. My findings provide novel empirical insights into the different nexuses between the securitization and risk appetite of BHCs around the financial crisis.