PL EN


2020 | 302 | 2 | 43-69
Article title

Macroprudential and Monetary Policy Rules in a Model with Collateral Constraints

Authors
Content
Title variants
PL
Reguły polityki pieniężnej i makroostrożnościowej w modelu z ograniczeniami zastawowymi
Languages of publication
EN
Abstracts
PL
Porównujemy dobrobyt i makroekonomiczne skutki polityki pieniężnej i makroostrożnościowej, w szczególności opartej na wskaźniku LTV (loan-to-value). Budujemy model DSGE z ograniczeniami zastawowymi i dwoma typami agentów. Za jego pomocną badamy siedem reguł polityki reagujących na stopę wzrostu kredytu i fluktuacje cen zastawu. Pokazujemy, że reguła polityki pieniężnej, która stabilizuje ceny zastawu, skutkuje najwyższym poziomem dobrobytu, a także pozwala stabilizować produkt i inflację. Polityka makroostrożnościowa używająca wskaźnika LTV jest niemal zawsze zdominowana przez politykę stopy procentowej pod względem wariancji produktu i inflacji. W przypadku niemożliwości zastosowania reguł polityki pieniężnej oddzielna polityka makroostrożnościowa pozwala osiągnąć pewne korzyści w zakresie dobrobytu, ale nie są one znaczne.
EN
We compare the welfare and macroeconomic effects of monetary policy and macroprudential policy, in particular one targeting the loan-to-value (LTV) ratio. We develop a dynamic stochastic general equilibrium (DSGE) model with collateral constraints and two types of agents. In this set-up, we study seven potential policy rules responding to credit growth and fluctuations in the prices of collateral. We show that monetary policy responding to deviations in collateral prices from their steady-state value results in the highest level of social welfare. It is also useful in stabilising output and inflation. A macroprudential policy using the LTV ratio as the instrument is dominated in terms of output and inflation stability by interest rate rules. If interest rate rules are not available, the LTV ratio can be used to improve welfare, but the gains are small.
Year
Volume
302
Issue
2
Pages
43-69
Physical description
Dates
published
2020-06-30
received
2019-09-26
accepted
2020-04-16
Contributors
author
References
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.doi-10_33119_GN_120623
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