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doi: 10.5283/epub.36044
In dieser Dissertation wird die Effizienz makroprudenzieller Regulierung für makroökonomische und Finanzmarktstabilität in einem neukeynesianischen dynamischen stochastischen allgemeinen Gleichgewichtsmodell mit Finanzmarktfriktionen analysiert. Dabei liegt der Fokus auf antizyklischer Regulierung der Verschuldungsquoten von Hypothekenschuldnern und Banken. Die Ergebnisse zeigen, dass die Optimalität dieser Regulierung mit dem anfänglichen Verschuldungsgrad der Kreditnehmer steigt. Im Vergleich mit einer dynamischen Verschuldungsquote für Banken mildert die antizyklische Verschuldungsquote bei Kreditnehmer effektiver Kreditzyklen ab. Zudem sorgt die Regulierung für makroökonomische Stabilität, wenn die Geldpolitik durch die Nullzinsgrenze von Nominalzinsen eingeschränkt ist. Diese Arbeit trägt zur Politikdebatte über eine optimale makroprudenzielle Regulierungsarchitektur bei.
This thesis studies the efficiency of macroprudential policies for financial and macroeconomic stabilization relying on a New Keynesian dynamic stochastic general equilibrium model with financial frictions. The focus is countercyclical regulation of loan-to-value ratios of mortgage borrowers and banks. The results show that the optimality of the regulation increases with the initial level of borrowers’ indebtedness. In comparison with the dynamic leverage ratio of banks, the countercyclical LTV ratio smooths more effectively credit cycles. Another outcome is that the countercyclical regulation stabilizes the macroeconomy when the monetary policy is constrained by the zero lower bound on nominal interest rates. This work contributes to the policy debate about the design of an optimal macroprudential policy framework.
ddc:330, 330 Wirtschaft, Makroprudenzielle Regulierung, Verschuldungsquoten, DSGE Model, Kreditzyklen, Nullzinsgrenze, Macroprudential regulation, loan-to-value ratios, DSGE model, credit cycles, zero lower bound
ddc:330, 330 Wirtschaft, Makroprudenzielle Regulierung, Verschuldungsquoten, DSGE Model, Kreditzyklen, Nullzinsgrenze, Macroprudential regulation, loan-to-value ratios, DSGE model, credit cycles, zero lower bound
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