Banking Competition, Collateral Constraints, and Optimal Monetary Policy

We analyze optimal monetary policy in a model with two distinct financial frictions: monopolistically competitive banks that charge endogenous lending spreads, and collateral constraints. We show that welfare maximization is equivalent to stabilization of four goals: inflation, output gap, the "...

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Veröffentlicht in:Journal of money, credit and banking credit and banking, 2013-12, Vol.45 (s2), p.87-125
Hauptverfasser: ANDRÉS, JAVIER, ARCE, ÓSCAR, THOMAS, CARLOS
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container_title Journal of money, credit and banking
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creator ANDRÉS, JAVIER
ARCE, ÓSCAR
THOMAS, CARLOS
description We analyze optimal monetary policy in a model with two distinct financial frictions: monopolistically competitive banks that charge endogenous lending spreads, and collateral constraints. We show that welfare maximization is equivalent to stabilization of four goals: inflation, output gap, the "consumption gap" between borrowers and savers, and a "housing gap" that measures the distortion in the distribution of the collateralizable asset between both groups. Collateral constraints create a trade-off between stabilization goals. Following both productivity and financial shocks, and relative to strict inflation targeting, the optimal policy implies sharper movements in the policy rate, aimed primarily at reducing fluctuations in asset prices and hence in borrowers' net worth. The policy trade-offs become amplified as banking competition increases, due to the fall in lending spreads and the resulting increase in borrowers' leverage.
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source Wiley Online Library Journals Frontfile Complete; Jstor Complete Legacy
subjects Bank credit
Bank loans
banking competition
Banks
Collateral
collateral constraints
Competition between banks
Competitiveness
E32
E52
Economic competition
Economic fluctuations
Economic inflation
Economic stabilization
Entrepreneurs
G10
G21
Housing
Inflation targeting
lending spreads
linear-quadratic method
Loans
Monetary economics
Monetary policy
Monopolistic competition
Productivity growth
Studies
Welfare losses
title Banking Competition, Collateral Constraints, and Optimal Monetary Policy
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