The Current Expected Credit Loss (CECL) Financial Accounting Standards Board (FASB) standard that goes into effect for major banks in 2020 contains a serious conceptual error. Using the contractual rate rather than the hurdle rate (the competitive rate on a loan for which there is no expected loss) as the rate to discount expected cash collections gives rise to accounting losses where no economic losses exist. This can have a profound effect on required capital and hence lending, especially in economically depressed episodes.
G20 Information Centre. (2009). Global plan annex: Declaration on strengthening the financial system [Statement issued by the G20 leaders]. University of Toronto Library. http://www.g20.utoronto.ca/2009/2009ifi.html