According to the most recent World Bank Enterprise Survey Data, firms in developing countries report that access to finance is the biggest obstacle for the growth of their operations. Across all regions, 17 percent of firms report that access to finance is the biggest obstacle. In some regions, access to finance is an even larger obstacle. For example, in Sub-Saharan Africa close to a quarter of the firms report access to finance to be the top obstacle.
An important impediment to firm financing is asymmetric information: a firm seeking to borrow from a lender in the credit market has better information about its financial state and its ability and willingness to repay the loan than the lender. Asymmetric information can lead borrowers less seriously intent on repaying loans to be more willing to seek out loans (adverse selection) and borrowers to use loaned funds in ways that are inconsistent with the interest of the lender (moral hazard). Seminal work by Stiglitz and Weiss (1981) shows that under asymmetric information the equilibrium interest rate is such that demand for credit exceeds supply - even borrowers willing to pay the market equilibrium interest rate are not able to get a loan (credit rationing).