Keynesian Dynamic Stochastic General Equilibrium Research Articles

Inefficient shocks and optimal monetary policy

Real disturbances that lead to trade-offs between inflation and output gap stabilization have not been studied much in the context of monetary policy settings in emerging markets and developing economies (EMDEs). We identify market price support present in the agriculture sectors of the EMDEs as inefficient shocks that lead to such trade-offs. Using a three-sector new Keynesian dynamic stochastic general equilibrium model, we show trade-offs between core-inflation and output gap stabilization under discretionary and commitment policies. This result departs from the popular viewpoint, stating that the strict core-inflation targeting is an optimal monetary policy for EMDEs susceptible to relative price changes.

Effect of Financial Frictions on Monetary Policy Conduct: A Comparative Analysis of DSGE Models with and without Financial Frictions

In this study, we explored the impact of bank leverage and financial frictions on the transmission of real and financial shocks. Two new Keynesian dynamic stochastic general equilibrium (DSGE) models, with and without financial frictions, were employed in the context of the Tunisian economy. In the analysis, we considered three types of shocks—productivity, monetary, and adverse bank capital shocks. The findings reveal that, in the model with financial frictions, the response of macroeconomic and financial variables to demand and supply shocks was more pronounced than in the baseline model, where frictions primarily exist at the borrower level. In this study, we underscored the significance of financial shocks, particularly negative bank capital shocks, in triggering substantial macroeconomic and financial fluctuations, especially when banks operate with higher leverage ratios. Additionally, the inclusion of financial frictions in the DSGE model enhanced its ability to capture the empirical features of real and financial shocks, providing valuable insights for effective monetary policymaking. The results provide foundational insights for Tunisian policymakers to assess the impact of financial frictions in the context of the Tunisian economy. This is significant for the Central Bank of Tunisia, which has not yet adopted a specific DSGE model. Therefore, through our analysis, we determined the amplificatory role of financial frictions in the dynamics of macroeconomic and financial variables in Tunisia and examined the main transmission channels of shock propagation.

From parameters to policies: sensitivity analysis and fiscal and monetary reactions

PurposeThis paper seeks to explore the sensitivity of these parameters and their impact on fiscal policy outcomes. We use the existing literature to establish possible ranges for each parameter, and we examine how changes within these ranges can alter the outcomes of fiscal policy. In this way, we aim to highlight the importance of these parameters in the formulation and evaluation of fiscal policy.Design/methodology/approachThe role of fiscal policy, its effects and multipliers continues to be a subject of intense debate in macroeconomics. Despite adopting a New Keynesian approach within a macroeconomic model, the reactions of macroeconomic variables to fiscal shocks can vary across different contexts and theoretical frameworks. This paper aims to investigate these diverse reactions by conducting a sensitivity analysis of parameters. Specifically, the study examines how key variables respond to fiscal shocks under different parameter settings. By analyzing the behavioral dynamics of these variables, this research contributes to the ongoing discussion on fiscal policy. The findings offer valuable insights to enrich the understanding of the complex relationship between fiscal shocks and macroeconomic outcomes, thus facilitating informed policy debates.FindingsThis paper aims to investigate key elements of New Keynesian Dynamic Stochastic General Equilibrium (DSGE) models. The focus is on the calibration of parameters and their impact on macroeconomic variables, such as output and inflation. The study also examines how different parameter settings affect the response of monetary policy to fiscal measures. In conclusion, this study has relied on theoretical exploration and a comprehensive review of existing literature. The parameters and their relationships have been analyzed within a robust theoretical framework, offering valuable insights for further research on how these factors influence model forecasts and inform policy recommendations derived from New Keynesian DSGE models. Moving forward, it is recommended that future work includes empirical analyses to test the reliability and effectiveness of parameter calibrations in real-world conditions. This will contribute to enhancing the accuracy and relevance of DSGE models for economic policy decision-making.Originality/valueThis study is motivated by the aim to provide a deeper understanding of the roles macroeconomic model parameters play concerning responses to expansionary fiscal policies and the subsequent reactions of monetary authorities. Comprehensive reviews that encompass this breadth of relationships within a single text are rare in the literature, making this work a valuable contribution to stimulating discussions on macroeconomic policies.

A Critical Analysis of the Financial Frictions Approach in a Minskyan Perspective

The concept of financial frictions is at the core of the Financial Frictions Approach (FFA) which underlines that to explain the financial crisis of 2007–2008 it is sufficient to add the financial system to the New Keynesian Dynamic Stochastic General Equilibrium (NK-DSGE) model. Many economists have cited Hyman Minsky among those who “emphasized the importance of financial frictions.” The aim of this work is: 1) to show that Minsky cannot be considered the precursor of the FFA and that FFA does not allow for a solid explanation of financial crises; and 2) to present a sound explanation of the financial instability affecting capitalist economies based on two teachings characterizing Minsky’s work. The first consists in Minsky’s interpretation of John Maynard Keynes’s General Theory, which recovers the revolutionary elements of Keynes’s thought neglected by the Neoclassical Synthesis. The second teaching consists in underlining the need to integrate Keynes’s and Joseph Schumpeter’s theoretical frameworks.

Monetary policy in practice: do central banks respond to movements in exchange rate and credit growth?

PurposeThis study examines the importance of exchange rate and credit growth fluctuations when designing monetary policy in Thailand. To this end, the authors construct a small open economy New Keynesian dynamic stochastic general equilibrium (DSGE) model. The model encompasses several essential characteristics, including incomplete financial markets, incomplete exchange rate pass-through, deviations from the law of one price and a banking sector. The authors consider generalized Taylor rules, in which policymakers adjust policy rates in response to output, inflation, credit growth and exchange rate fluctuations. The marginal likelihoods are then employed to investigate whether the central bank responds to fluctuations in the exchange rate and credit growth.Design/methodology/approach This study constructs a small open economy DSGE model and then estimates the model using Bayesian methods.Findings The authors demonstrate that the monetary authority does target exchange rates, whereas there is no evidence in favor of incorporating credit growth into the policy rules. These findings survive various robustness checks. Furthermore, the authors demonstrate that domestic shocks contribute significantly to domestic business cycles. Although the terms of trade shock plays a minor role in business cycles, it explains the most significant proportion of exchange rate fluctuations, followed by the country risk premium shock.Originality/value This study is the first attempt at exploring the relevance of exchange rate and credit growth fluctuations when designing monetary policy in Thailand.

Research on the Impact of Industrial Digitalization on High-Quality Economic Development: Evidence from China

This paper presents a New Keynesian dynamic stochastic general equilibrium model with price stickiness, employing macro-quarterly data and Bayesian estimation for parameter estimation. The study dissects the impact of industrial digitalization into three key components: total factor productivity shock, investment marginal efficiency shock, and capital-to-labor substitution shock. The paper then analyzes the mechanism through which industrial digitalization influences the high-quality development of the economy using impulse response analysis and historical variance decomposition. The result shows that: In terms of economic growth, all three types of shocks resulting from industrial digitalization contribute to output expansion, with the investment marginal efficiency shock rapidly boosting output in the short term. However, the technology shock has the most noticeable long-term effect on output growth. In the labor market, the investment marginal efficiency shock positively impacts employment and wages. The effects of the technology shock and capital-to-labor substitution shock on employment and wages first show suppression before enhancement. In the commodity market, the three shocks exert more pronounced effects in the medium and long term, bolstering investment and consumption to varying degrees. In light of these findings, policy recommendations include promoting the development of digital infrastructure, implementing proactive employment policies, offering robust industrial support for the digitalization of traditional enterprises, and fostering a favorable market environment.

DSGE on the metaverse

This paper explores the economic dynamics of the metaverse by using on-chain data of token holdings from a blockchain game. We use the New Keynesian Dynamic Stochastic General Equilibrium (DSGE) model to examine the token inflation of the metaverse economy. We extend the standard DSGE models with in-game cryptocurrency to capture the demand and supply of NFTs assets. We compare the responses to tokenomic shocks that drive the metaverse economy. This paper is the first to use on-chain token holding data and DSGE models to study the metaverse economy.

Identifying efficient policy mix under different targeting regimes: A tale of two crises

We examine the influence of demand shock, supply shock and the monetary policy shock on macroeconomic variables using the New Keynesian Dynamic Stochastic General Equilibrium framework. Our study tries to identify the efficient monetary policy mix as an antidote to the prevailing economic fragilities that originated due to the COVID-19 pandemic and geopolitical conflict in case of India and China. Under both simulated and Bayesian analysis, our findings revealed the inflationary effect of demand and supply shock with a target-oriented monetary policy under sticky prices as the efficient policy tool to counter these effects. The macroeconomic projections depicted the favourable influence of output due to active intervention of target-oriented monetary policy in both these economies.

Implications of collateral constraints for the term premium

ABSTRACT This study examines the impact of credit constraints on the term premium in a production economy. To do so, we incorporate the Kiyotaki-Moore collateral constraint and Epstein-Zin-Weil preferences into a medium-scale New Keynesian Dynamic Stochastic General Equilibrium (NK DSGE) model with nominal rigidity. Our findings are twofold. First, credit constraint, a key ingredient of the financial accelerator channel, has significant effects on the term premium. Second, the loan-to-value ratio has non-linear effects on the term premium.

The Effects of Monetary Policy on Macroeconomic Variables through Credit and Balance Sheet Channels: A Dynamic Stochastic General Equilibrium Approach

Economic policies aimed at managing economic variables in the short and long term have always been of special importance. These policies seek to reduce economic fluctuations in the short term and increase sustainable economic growth in the long term. One of these policies is monetary policy, which is mainly carried out by central banks worldwide. This paper uses the Keynesian Dynamic Stochastic General Equilibrium (DSGE) model to examine the effects of monetary policy on the real variables of the Iranian economy through the credit channel and the balance sheet channel. The presented model analyzed information about macroeconomic variables in Iran for the period from 1990 to 2020. The obtained results show that with the implementation of restrictive monetary policy in the economy, all productive activities of enterprises decreased, and this led to a decrease in household income, which in turn reduced household savings in the form of bank deposits. Because the most important sources of financing for banks are deposits, the ability of banks to offer loans was reduced. On the other hand, a restrictive monetary shock was associated with a decline in the value of corporate securities. As a result, the amount of received loans by firms was reduced by the value of the assets. This reduced the demand of banks for bank loans, which intensified the effects of the initial shock, along with a reduction in the banks’ ability to provide lending services. Further, the results indicate the relative success of the model in simulating Iran’s macro economy.

Evaluation and indirect inference estimation of inattentive features in a New Keynesian framework

AbstractWe test the standard New Keynesian (NK) dynamic stochastic general equilibrium (DSGE) model with and without inattentiveness features, where inattentiveness is modeled either in the form of sticky information (SI) or imperfect information (IF) data revision. All models are estimated and tested by indirect inference. The estimated model with sticky information somewhat outperformed the estimated NK model with full‐information rational expectation (FIRE), though both passed the test easily, while the model with IF data revision was strongly rejected.

Inflation dynamics in South Africa: The role of public debt

Orientation: Inflation targeting requires prudent fiscal policy to achieve desired results.Motivation for the study: Since the 2007–2008 financial crisis, fiscal authorities in South Africa have implemented an aggressive fiscal stimulus that has resulted in an acceleration of public debt, accompanied by a sustained government deficit. At the same time, the economy has continued to struggle with achieving significant growth to assist the government with its ever-growing expenditure obligations.Research Purpose: This study set out to investigate the relationship between inflation dynamics and the stance of fiscal policy, with a focus on public debt, in South Africa.Method: This study employs a New Keynesian dynamic stochastic general equilibrium (NKDSGE) model with financial frictions calibrated on South African data.Main Findings: The results of this study showed that when fiscal authorities put a relatively small weight on the control of public debt, inflation significantly increases in response to economic shocks. As a result, the cost channel of monetary policy transmission dominates the demand channel even if the loan rate pass-through is complete.Practical/Managerial Implications: The results of this study highlight the importance of fiscal discipline and its potential adverse effects on monetary authorities’ ability to achieve price stability as set out in their monetary framework.Contribution/Value added: To the best of our knowledge, this is the first study to analyse inflation dynamics and public debt in South Africa using modular experiments in a structural model derived from micro-economic foundations of constrained decision-making.

CLIMATE POLICIES AND BUSINESS CYCLES: THE EFFECTS OF A DYNAMIC CAP

AbstractEmissions are directly linked to economic output and consequently subject to business cycle fluctuations. The present study analyses the interactions between climate policies and business cycles through the lens of a New Keynesian dynamic stochastic general equilibrium model. We compare a static cap-and-trade policy with a dynamically adjusting policy in terms of macroeconomic stabilisation, welfare and emissions price dynamics. The results of the quantitative evaluation suggest that a constant policy leads to lower aggregate volatility but is associated with larger welfare costs. In contrast, under the dynamic policy emissions prices and labour markets display less variations.

Does inattentiveness matter for DSGE modeling? An empirical investigation

The purpose of this paper is to investigate the empirical performance of the standard New Keynesian dynamic stochastic general equilibrium (DSGE) model in its usual form with full-information rational expectations and compare it with versions assuming inattentiveness- namely sticky information and imperfect information data revision. Using a Bayesian estimation approach on US quarterly data (both real-time and survey) from 1969 to 2015, we find that the model with sticky information fits best and is the only one that can generate the delayed responses observed in the data. The imperfect information data revision model is improved fits better when survey data is used in place of real-time data, suggesting that it contains extra information. • The paper considers the full-information rational expectations with two other forms of inattentive expectations, namely sticky information and imperfect information data revision. • The paper extends empirical evidence using both real-time and survey data to verify which model with the inattentive feature best replicates actual outcomes. • This is the first empirical analysis to compare models with and without expectations inattentiveness. • The New Keynesian DSGE model with an inattentive feature is a better fit with the real-time data using Bayesian estimation. • The imperfect information data revision model performs better when we substitute the real-time data with the survey data.

PANDEMIC SHOCKS AND MACRO-FINANCIAL POLICY RESPONSES: AN ESTIMATED DSGE-VAR MODEL FOR INDONESIA

This paper attempts to investigate the impact of policy mix in dealing with the COVID-19 pandemic. We employ the New Keynesian Dynamic Stochastic General Equilibrium (DSGE) framework and the Del Negro et al. (2007) approach to estimate the model. We investigate the effectiveness of policy mix in Indonesia by taking into account real and financial linkages, as well as other market imperfections. We intend to analyze and evaluate the adequacy of monetary, fiscal, and macroprudential policy by simulating each policy option using Indonesian-specific factors and comparing them. Our findings show that policy mix has a greater impact on accelerating economic recovery but does not necessarily lead to anchor inflation.

PANDEMIC SHOCKS AND MACRO-FINANCIAL POLICY RESPONSES: AN ESTIMATED DSGE-VAR MODEL FOR INDONESIA

This paper attempts to investigate the impact of policy mix in dealing with the COVID-19 pandemic. We employ the New Keynesian Dynamic Stochastic General Equilibrium (DSGE) framework and the Del Negro et al. (2007) approach to estimate the model. We investigate the effectiveness of policy mix in Indonesia by taking into account real and financial linkages, as well as other market imperfections. We intend to analyze and evaluate the adequacy of monetary, fiscal, and macroprudential policy by simulating each policy option using Indonesian-specific factors and comparing them. Our findings show that policy mix has a greater impact on accelerating economic recovery but does not necessarily lead to anchor inflation.

Forward Guidance Effectiveness in a New Keynesian Model with Housing Frictions

Abstract Housing markets are closely related to monetary policy. This paper studies the link between housing frictions and the effectiveness of forward guidance. A housing collateral constraint and forward guidance shocks are incorporated into a standard medium-scale New Keynesian Dynamic Stochastic General Equilibrium (DSGE) model. Our main results produce a number of important implications. First, financial frictions emanating from the housing market dampen the effectiveness of forward guidance on the economy. Second, forward guidance shocks generate welfare gains, though the magnitude of these gains declines when housing frictions increase. Housing frictions also attenuate the effect of forward guidance at the zero lower bound. Finally, this article provides a solution to “forward guidance puzzle” of Del Negro, M., M. P. Giannoni, and C. Patterson (2012. “The Forward Guidance Puzzle.” In FRB of New York Staff Report, 574). Thus, policymakers should consider housing frictions when examining the effects of forward guidance on the economy.

Impact of oil price uncertainty shocks on China’s macro-economy

This study investigates the impacts of crude oil price uncertainty shocks on China’s macro-economy using empirical and theoretical approaches. The vector auto-regression with stochastic volatility in mean (VAR-SVM) model reveals that increasing oil price uncertainty significantly depresses output and raises inflation. To fully understand the transmission channels of oil price uncertainty shocks, we develop a new Keynesian dynamic stochastic general equilibrium (DSGE) model that incorporates oil demand of household, intermediate sector, and transportation sector. Increasing income uncertainty induced by high oil price volatility leads to enhanced precautionary saving and thus a decrease in consumption, particularly durable consumption, of individual households. The precautionary working mechanism is plausible in the changes of households’ labor supply and firms’ production behaviors when oil price uncertainty increases. Furthermore, with decreasing forward-looking market demand, intermediate firms choose higher prices to avert risk, which results in higher inflation in China. To explore how to mitigate the negative effects of oil price uncertainty, we consider a number of possible factors. The results illustrate that increasing competitiveness among transportation firms, reducing oil intensity of intermediate sector, targeting headline inflation by the central bank, and decreasing the Frisch elasticity of labor supply are effective measures. Our findings also suggest that deregulation of refined oil price in China would not amplify negative effects of oil price uncertainty.

Monetary-fiscal coordination: when, why and how?

PurposeThis paper aims to revisit the theme of fiscal-monetary coordination in a general equilibrium setup that allows for unconventional monetary policy, monetary policy transmission and developing country characteristics.Design/methodology/approachThis paper uses a calibrated new Keynesian dynamic stochastic general equilibrium (DSGE) model to study fiscal-monetary interaction.FindingsDebt sits at the center of monetary-fiscal interaction. Under high-debt conditions, the inflation-output trade-off rises with an increase in the strictness with which monetary policy targets inflation, undermining the standard prescription of strict inflation targeting. At the same time, the transmission of monetary policy is also impeded, due to which unconventional monetary policy becomes more appropriate. The need for coordination among the policies gets enhanced in the presence of borrowing cost channel. While the presence of borrowing cost channel increases the need for policy coordination regardless of the debt situation, features like higher share of non-Ricardian households and weaker monetary policy transmission affect monetary-fiscal interaction to a greater extent under high-debt environment.Originality/valueFirst, this paper uses inflation-output trade-off as a metric, to analyze fiscal-monetary interaction. Second, this paper considers the impact of developing country characteristics (such as a higher share of non-Ricardian households, impeded monetary policy transmission and supply constraints/borrowing cost channel) on fiscal-monetary interaction. Third, the DSGE model developed in this paper incorporates open market operations that could shed light on the role of unconventional monetary policy in the presence of high fiscal deficit and debt, which is particularly relevant in the current context of the COVID-19 pandemic. Fourth, the model also permits an investigation into monetary policy transmission under different debt regimes.

A Generalized New Keynesian Model with Wage Stickiness

In this paper, we derive a generalized version of New Keynesian Dynamic Stochastic General Equilibrium (DSGE) model to study how real imperfections of labor market affect the steady state and dynamics of model given different non-zero annual target inflation rates. The main finding is that, given the same target inflation rate, wage stickiness is more distortionary than the price stickiness. The existence of positive target inflation rate can also change the first-order dynamics of model, amplifying or reducing the dynamic response of model according to the type of exogenous shocks. A relatively high target inflation rate, 2% or 3%, may be preferable to a zero target inflation rate.