Capital market imperfections
Credit market imperfections (known academically as capital market imperfections) are limitations that reduce the range of financial contracts that can be signed or honored. There are three main theoretical drivers of imperfection: First, lenders do not have full information about the borrower, whether they have the capacity to pay back their debt and/or whether they are willing to pay (asymmetric information).
Source: Wikipedia — Capital market imperfections (CC BY-SA 4.0)