Information production, banking industry structure and credit allocation

We analyse credit allocation when limited-liable banks can engage in costly information production about borrowers. When perfectly diversified credit portfolios cannot be constructed, we show that credit allocation depends on bank capital and the number of banks that can operate in the same market. A concentrated banking industry, one where bank capital is held by few banks, is shown to lead to credit allocation closer to the social optimum. Moreover, in the absence of banking industry consolidation, we find that the removal of intra-state entry barriers reduces welfare and not all independent banking organizations that were viable in formerly protected markets remain so when markets are integrated.