The global financial crisis and the ensuing Great Recession forcefully illustrate yet again that disturbances in the financial sector profoundly affect macroeconomic aggregates and inequality. Financial market intervention is also bound to have effect on economy aggregates and inequality. The quantification of these effects thus far remains scarce because typically models either have a rich financial sector or rich heterogeneity, but seldom both accounting for both these aspects, both for tractability and due to the lack of policy relevance in the past.
The global financial crisis and the ensuing Great Recession forcefully illustrate yet again that disturbances in the financial sector profoundly affect macroeconomic aggregates and inequality. Financial market intervention is also bound to have effect on economy aggregates and inequality. The quantification of these effects thus far remains scarce because typically models either have a rich financial sector or rich heterogeneity, but seldom both accounting for both these aspects, both for tractability and due to the lack of policy relevance in the past.
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Yu-Ting Chiang i Piotr Żoch pokazują w REStud, że w szerokiej klasie modeli makroekonomicznych, elastyczność podaży płynności jest metryką dostateczną.
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Odpowiedzi szukamy z ekonomistą Piotrem Żochem w najnowszym odcinku podcastu GRAPE | Tłoczone z danych.
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Czy nagłe wahania cen surowców mogą wywołać kryzys finansowy? Sprawdza Piotr Żoch GRAPE | Tłoczone z danych dla...
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Czy za wzrost cen odpowiadają chciwi przedsiębiorcy? Odpowiedzi szukamy z Piotrem Żochem w najnowszym odcinku podcastu GRAPE | Tłoczone...
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Inflacja zbawieniem dla zadłużonych firm? Sprawdza Piotr Żoch GRAPE | Tłoczone z danych dla Dziennika Gazety Prawnej.
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Czy grozi nam kolejny kryzys finansowy? Odpowiedzi szukamy z Piotrem Żochem w najnowszym odcinku podcastu GRAPE | Tłoczone z danych.
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Jak sprawdzić odporność sektora bankowego na wstrząsy? Piotr Żoch bierze pod lupę dźwignię finansową w bankowości GRAPE|Tłoczone z danych dla...
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Czy istnieje tajna broń rządów do walki z długiem państwa? Gościem czwartego odcinka podcastu GRAPE|Tłoczone z danych jest Piotr Żoch.
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Co inwestorzy widzą w papierach o niskich rentownościach? Objaśnia Piotr Żoch w GRAPE|Tłoczone z danych dla...
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Miks restrykcyjnej polityki monetarnej z ekspansywną polityką fiskalną kończy się recesją i wyższą inflacją. GRAPE|Tłoczone z danych dla DGP.
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Do wybuchu paniki bankowej wystarczy nawet plotka. Lekarstwo na kryzysy znaleźli tegoroczni nobliści. GRAPE|Tłoczone z danych dla DGP.
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Piotr Żoch w rozmowie z Interia Biznes.
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Czy podnosząc stopy procentowe, bank centralny zwiększa siłę rynkową banków komercyjnych? Felieton GRAPE|Tłoczone z danych
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Niestabilność sektora finansowego osiągnęla skalę niespotykaną w historii. Nie stało się to jednak z dnia na dzień. GRAPE | Tłoczone z danych dla DGP
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Kto zyskuje na tym, że ciągle pojawiają się nowe produkty a te istniejące stają się coraz lepsze? GRAPE |...
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GRAPE | Tłoczone z danych dla DGP
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W ostatnich miesiącach stosunek długu publicznego do PKB w wielu krajach wystrzelił na najwyższe od lat poziomy. Co dalej? GRAPE | Tłoczone z danych dla DGP.
Źródło finansowania | Financing: Narodowe Centrum Nauki, PRELUDIUM 18
Projekt realizowany | Timeline: 10/2020 -- 09/2023
Kierownik | Principal Investigator: Piotr Żoch
Budżet łączny | Total budget: 112 062 zł
- stypendia dla młodych badaczy | scholarships for young scholars: 54 400 zł
- komputery i oprogramowanie | hardware and software: 6 500 zł
- konferencje i inne wyjazdy | conference travels: 23 790 zł
- książki i opłaty publikacyjne | books and publication fees: 2 915 zł
- koszty pośrednie dla FAME | overheads for FAME: 0 zł
In the project we will develop a novel model of economy with heterogeneous agents and rich financial sector. We will first study, in a theoretical setup, the links between financial sector disturbances and stabilization policies and preexisting inequality in wealth, income and portfolio heterogeneity. This model will further be developed to a quantitative heterogeneous agent New Keynesian (HANK). Our model will feature realistic income processes and asset positions of households. We will use this setup to explore the effectiveness and redistributive consequences of various policy interventions intended to mitigate consequences of financial crises. Namely, bank bailouts and purchases of distressed assets affect households in different parts of the wealth distribution in a different way. These widely deployed relief programs usually come at a cost that eventually has to be covered by taxation, burden of which falls disproportionately on some households. It is not clear ex ante what types of stabilization programs are more effective and what determines their effectiveness.
This broad research agenda will be operationalized in two studies: a stylized theoretical study and a quantitative study. From the perspective of policy relevance, verifying two hypotheses is of paramount importance.
- Hypothesis 1: Financial sector shocks, as well as policies intended to mitigate them, affect inequality. It was demonstrated empirically for monetary policy shocks, but theory remains underdeveloped for financial sector shocks. Our objective is to provide a theoretical account of the channels relating disturbances in financial sector and the distribution of household incomes and wealth. As an auxiliary hypothesis, we postulate that the macroeconomic effects of financial shocks depend on the joint distribution of wealth, income and assets in the economy. A negative covariance between MPCs and net nominal asset position and a positive covariance between MPCs and household level income growth as a consequence of interest rate cut work in the same way. We expect to find a similar set of theoretical predictions to be true in a context of financial shocks
- Hypothesis 2: The joint distribution of wealth, income and assets in the economy drives which of instruments -- bank bailouts or direct transfers to the households -- are more effective in raising aggregate demand. This hypothesis is related to H1. If banking crises eventually depress wages of households with low MPCs, bank bailouts might be more powerful than equally costly direct transfers to the poor household. If households exposed to a sharp decline in asset prices are wealthy hand-to-mouth, they will have high MPCs and relief programs focused on purchases of distressed assets might be especially potent. Without a calibrated model it is impossible to say which one of these scenarios is the one closest to reality.
Summarizing, the proposed study provides an innovative way to analyze the effects of financial shocks and financial market interventions. From the academic perspective, it addresses policy relevant problems and builds on previous findings in the field. Furthermore, the aim of the proposed study is to develop a tool than can be later on utilized to address further research questions. From the technical perspective, building a model that features a rich asset structure, a meaningful income and wealth heterogeneity and microfounded frictional financial sector is a challenge. It requires a sophisticated solution algorithm and developing this set of skills will be beneficial during the subsequent stages of the academic career. As a project result, we hope to provide policy recommendations, which could guide decisions of policymakers who are concerned about inequality and are facing a financial crisis.
Opublikowane | Published
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Financial intermediation and aggregate demand: A sufficient statistics approach | Review of Economic Studies Przeczytaj streszczenie | Read abstract
We provide a unified framework to study how the financial sector affects the transmission of macroeconomic policies, such as monetary and fiscal policies, and asset purchase programs. Our framework nests models of financial intermediation with various microfoundations and allows for rich household heterogeneity. The financial sector supplies liquidity by issuing liquid assets to finance illiquid capital. The elasticities of liquidity supply with respect to returns are sufficient statistics that summarize how the financial sector determines responses to policy through asset markets. This asset market channel has a strong effect on output when liquidity supply is inelastic. We apply our approach to study the relative effectiveness of policies targeting the financial sector versus households. In commonly used setups, aggregate output responses differ by orders of magnitude due to implicit assumptions about the elasticities. Our estimates of the liquidity supply elasticities for the U.S. economy imply a modest effect through the asset markets and a stronger effect of targeting households.
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The distributional effects of bailouts | Federal Reserve Bank of St. Louis REVIEW Przeczytaj streszczenie | Read abstract
This article examines the distributional effects of government bailouts using a heterogeneous agent New Keynesian model with financial intermediation frictions. We analyze government equity injections to financial institutions financed by debt issuance, capturing essential features of bailout policies during financial crises. When calibrated to match key features of the U.S. economy, bailout policies are expansionary and reduce inequality through general equilibrium effects operating primarily via aggregate demand stimulation and increased labor income rather than direct wealth effects. Equity injections increase the financial sector’s capacity to intermediate capital, leading to higher capital prices, increased investment, and substantial aggregate demand increases. This improves labor market conditions that benefit lower-income households more than wealth effects benefit the wealthy. The result is reduced wealth and consumption inequality, demonstrating that bailouts can simultaneously achieve macroeconomic stabilization and inequality reduction.
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Macroprudential and monetary policy rules in a model with collateral constraints | Gospodarka Narodowa Przeczytaj streszczenie | Read abstract
We compare welfare and macroeconomic effects of monetary policy and macroprudential policy, in particular targeting loan-to-value (LTV) ratios. We develop a DSGE model with collateral constraints and two types of agents. In this setup, we study seven potential policy rules responding to credit growth and fluctuations in prices of collateral. We show that monetary policy responding to deviations of collateral prices from their steady state value results in the highest level of social welfare. It is also useful in stabilizing output and inflation. Macroprudential policy using LTV ratio as the instrument is dominated in terms of output and inflation stability by the interest rate rules. If interest rate rules are not available, the LTV ratio can be used to improve welfare, but gains are small.