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Capital Regulation in a Macroeconomic Model with Three Layers of Default

Authors 
Alexandro Vardulakis
Javier Suarez
Livio Stracca
Kalin Nikolov
Stephane Moyen
Alexis Derviz
Laurent Clerc
Publication Year 
2015
JEL Code 
E3 - Prices, Business Fluctuations, and Cycles
E44 - Financial Markets and the Macroeconomy
G01 - Financial Crises
G21 - Banks; Other Depository Institutions; Mortgages
Abstract 
We develop a dynamic general equilibrium model for the positive and normative analysis of macroprudential policies. Optimizing financial intermediaries allocate their scarce net worth together with funds raised from saving households across two lending activities, mortgage and corporate lending. For all borrowers (households, firms, and banks) external financing takes the form of debt which is subject to default risk. This “3D model” shows the interplay between three interconnected net worth channels that cause financial amplification and the distortions due to deposit insurance. We apply it to the analysis of capital regulation.
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