The second series, the financial-obligations ratio, is a broader version of the debt-service ratio that includes required household payments on rent, auto leases, homeowners insurance, and property taxes. Both ratios rose during the 1990s, and both reached a peak in late 2002.
The objective of financial theoretical research is to objectively describe the patter of interests and the rule of its change, providing guidance to economic and financial policy making aimed at establishing appropriate incentive mechanisms.