Линейки ссудо-сберегательных тарифных планов: обобщение идеи стройсберкасс.

Contractual savings for housing (Bausparkassen) with narrow ranges of tariff plans are used to coexist with banking hypothec, providing consumers a binary choice . We propose to form systems (lines) of savings and loan tariff plans (SLTP) for bank accounts «linking» these two mortgage institutions. We consider properties of lines of SLTP and develop a model for their design and analysis. Experimental calculations indicate that parameters of the line of SLTP may be selected so that efficiency of the mortgage system rises for all involved agents – consumers, banks and governments. Finally we analyze the impact of parameters of SLTP on objective functions of the agents.