If there is anything that is clear from development economics literature over the last two decades it is this: credit markets matter. From Stiglitz and Wiess (1981) to Banerjee and Duflo (2002), both theory and evidence have shown that credit markets are not perfect problems of moral hazard, adverse selection, and contract enforcement lead to credit rationing. Countries, people, or regions that can make credit markets more efficient have benefited and will continue to benefit from a higher GDP.
Beck, Demirguc-Kunt, and Levine (2000) compare financial markets in developed countries to those in developing countries, revealing that economies grow faster, industries depending on external finance expand at higher rates, new firms are created more easily, and firms grow more rapidly in economies with higher levels of overall financial sector development and in countries where legal systems more effectively protect the rights of outside investors.