Amirislani et al (2017)

Amiraslani, Hami, Karl Lins, Henri Servaes, and Ane Tamayo.  “A Matter of Trust?  The Bond Market Benefits of Corporate Social Capital During the Financial Crisis.”  Working paper (London School of Economics), 2017.

From the abstract:  "Using the financial crisis as an exogenous shock to trust, and firms’ corporate social responsibility (CSR) activities as a proxy for social capital, we show that high-CSR firms benefited from lower bond spreads in the secondary market during the financial crisis compared to low-CSR firms... "

Link:  https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3042634