An interesting study via Kauffman Foundation of the effects of banking sector deregulation and competition on SMEs productivity in the US.
Krishnan, Karthik and Nandy, Debarshi K. and Puri, Manju study, titled "Does Financing Spur Small Business Productivity? Evidence from a Natural Experiment" (published November 21, 2013 http://ssrn.com/abstract=2358819) assessed "how increased access to financing affects firm productivity" based on a large sample of manufacturing firms from the U.S. The study relied on "a natural experiment following the interstate bank branching deregulations that increased access to bank financing and relate these deregulations to firm level total factor productivity (TFP)."
Core results "indicate that firms' TFP increased subsequent to their states implementing interstate bank branching deregulations and these increases in productivity following the deregulation were long lived."
In addition, "TFP increases following the bank branching deregulations are significantly greater for financially constrained firms. In particular, …we show that firms that are close to but not eligible for financial support from the U.S. Small Business Administration (and are thus more financially constrained) have higher TFP increases after the deregulation than firms that just satisfy eligibility criteria (and are hence less financially constrained)."
Overall, the "results are consistent with the idea that increased access to financing can increase financially constrained firms' access to additional productive projects that they may otherwise not be able to take up. Our results emphasize that availability of financing is important for improving the productivity of existing entrepreneurial and small firms."
By proxy, the results also show that increased presence of banking institutions in the economy does contribute positively to productivity enhancing funding availability for the firms.
