The informational wedge between insiders and outsiders is most acute for relatively smaller borrowers (like small businesses and even consumer loans) where the potential lender is unable to readily verify project quality (an adverse selection problem). Not surprisingly, a significant body of empirical research exists in documenting the various ways such adverse selection can be attenuated. However, to examine the borrower-lender loan dynamics in its fullest sense requires the inclusion of those potential borrowers who might want a loan for their businesses but choose to not formally apply because they are sure they will be refused by the bank – otherwise known as “discouraged” borrowers.
While the current body bank lending research, exemplified by the citations in footnote 2, have not included discouraged borrowers in their analysis, there is now a growing body of evidence that appears to suggest that owners of small businesses from certain demographic groups are systematically discouraged from applying for a loan (see, for example, Blanchflower, Levine, and Zimmerman, 2003; and Cavalluzzo, Cavalluzzo, and Wolken, 2002). Given the significant numbers of discouraged borrowers in the population, they cannot be thought of as mere random samples and, thereby, safely ignored from analysis. Ignoring discouraged borrowers from any analysis of credit availability or of the cost of credit is, in fact, likely to bias the relevant parameter estimates since the self selection of applicants may induce lenders to adopt different screening rules than those that would prevail if the discouraged borrowers were to apply.