scholarly journals Development of the fundamentals of DSGE-modeling

2021 ◽  
Vol 2021 (01) ◽  
pp. 67-85
Author(s):  
Serhii Shvets` ◽  
◽  

This article attempts to analyze the evolution of approaches that constitute grounds for macro modeling. The counteraction to destructive consequences of crises assumes practical use of model apparatus as a necessary tool for preventing destabilization. The article aims to study the progressive stages and identify unsettled issues and promising ways to assist macro models' evolution. The fundamental Marshall's and Walras's platforms supported progressive changes following the destructive Great Depression and Great Inflation in the USA in 1920-1970 and marked a new trend in macro modeling called dynamic stochastic general equilibrium (DSGE) models. The new instrument is remarkable for a radical change in macro modeling approaches, where microeconomics comes to the fore. DSGE models debuted by invoking four essential ingredients: the Phillips curve, adaptive inflation expectations, anchoring nominal prices, and an endogenous production function. The progression stages of theoretical approaches to macro modeling incorporate the classical and Keynesian schools' advanced innovations. The evolution of macro modeling has five generations of models: Keynesian, classical, RBS, new Keynesian, and new Keynesian DSGE models. Among advantages of DSGE models are "political neutrality," distinguishing the shocks into economic and political ones, and establishing the upshots of significant structural changes in the economy. The next generation of macro models is called to solve four pressing issues: establishing financial frictions, relaxing rational expectations, introducing heterogeneous agents, and underpinning the framework with more appropriate microfoundations.

2015 ◽  
Author(s):  
◽  
Kuo-Hsuan Chin

[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Understand the short-run inflation dynamics is essential for conducting the fiscal or monetary policies, and the New Keynesian Phillips Curve (hereafter, NKPC) has been widely used for charactering it in the past two decades. The mixed results arise from estimating NKPC with constant parameters. I argue that the timevarying features of parameters in NKPC help reconcile the conflicting conclusions in the empirical NKPC studies. Moreover, it is useful for policymakers to estimate the effect of government spending on private spending and aggregate output. However, the precise estimate of such effects is hard to pin down since the researchers use very different theoretical models, ranging from a frictionless Real Business Cycle model to a medium-scale New Keynesian model with many nominal and real frictions. I take a top-down approach by generalizing the Dynamic Stochastic General Equilibrium (DSGE) model of Smets and Wouters (2007), in which many DSGE models can be viewed as simpler versions of it after removing certain nominal or real frictions. I take a Bayesian approach to estimate the fiscal stimulus in different models, which are obtained by imposing a tight prior on a single parameter or a combination of tight priors on multiple parameters. I pick up an appropriate model via Bayes factor and then use it to forecast the effect of government spending. I find a positive short-run effect but a negative long-run consequence of fiscal stimulus.


Economies ◽  
2021 ◽  
Vol 9 (1) ◽  
pp. 34
Author(s):  
Adhitya Wardhono ◽  
M. Abd. Nasir ◽  
Ciplis Gema Qori’ah ◽  
Yulia Indrawati

The development of the theory of dynamic inflation begins by linking wage inflation and unemployment. In further developments, factor of expectation is classified into inflation model. The study used inflation data is important for ASEAN, because ASEAN is one of the strengths of the international economy. This study analyzes the dynamics of inflation in the ASEAN using framework the New-Keynesian Phillips Curve (NKPC) model. The data used is the quarterly panel data from 5 ASEAN members in the period 2005.QI–2018.QIV. The study of this dynamic inflation applies quarter to quarter inflation data, meaning that the inflation rate is the percentage change in the general price of the current quarter compared to last quarter general price divided by the last quarter. The empirical results are estimated by using the Generalized Method of Moment (GMM), both of the system and first different indicates that the pattern formation of inflation expectations are backward-looking and forward-looking. In addition, the estimated NKPC models show the backward-looking behavior is more dominant than the forward looking. Changes in inflation are not entirely influenced by expectations of inflation in each country. Changes in inflation are also influenced by the output gap, changes in money supply, and exchange rate. Based on the findings of this study, it can be concluded that the NKPC models can explain the dynamics of inflation in each country in the ASEAN region.


2018 ◽  
Vol 56 (4) ◽  
pp. 1447-1491 ◽  
Author(s):  
Olivier Coibion ◽  
Yuriy Gorodnichenko ◽  
Rupal Kamdar

This paper argues for a careful (re)consideration of the expectations formation process and a more systematic inclusion of real-time expectations through survey data in macroeconomic analyses. While the rational expectations revolution has allowed for great leaps in macroeconomic modeling, the surveyed empirical microevidence appears increasingly at odds with the full-information rational expectation assumption. We explore models of expectation formation that can potentially explain why and how survey data deviate from full-information rational expectations. Using the New Keynesian Phillips curve as an extensive case study, we demonstrate how incorporating survey data on inflation expectations can address a number of otherwise puzzling shortcomings that arise under the assumption of full-information rational expectations. (JEL D04, E24, E27, E31, E37)


2017 ◽  
Vol 18 (1) ◽  
Author(s):  
Hardik A. Marfatia

Abstract This paper utilizes the information in the inflation-indexed bonds market to estimate the New Keynesian Phillips Curve for the UK using an unobserved component approach. The main advantage of this approach comes from using the Kalman filter to explicitly estimate the unobserved expected inflation from the observed break-even inflation rates – the yield difference between the inflation-indexed bonds and the nominal bonds. Our results show that the expected inflation estimated from the unobserved component model plays a significant role in explaining the inflation dynamics in the UK. The evidence also suggests that the estimated inflation expectations are better able to capture the evolution of actual inflation process as compared to the break-even inflation rate as a proxy for expected inflation.


2019 ◽  
pp. 54-80 ◽  
Author(s):  
N. A. Ranneva

Modern economic theory considers expectations as a key determinant of actual inflation. How agents form those expectations therefore plays a central role in macroeconomic dynamics and policy-making. The understanding of the expectation formation process and the real-time estimation of expectations are especially important for central banks because they need to be sure that longer-term inflation expectations are anchored at the target of inflation, set by the central bank. When expectations are anchored — it is a clear sign that the monetary policy is effective and that markets trust the central bank. However, it is not easy to assess the expected inflation: it is not observable and cannot be directly measured. Central banks can only use the indirect estimates of this variable. For many years the main theoretical framework for modeling and analysis of inflation expectations was Phillips curve with rational expectations which substituted the adaptive expectations. Today many alternative models of expectation formation are available. The article provides a brief overview of the evolution of theoretical approaches to inflation expectation formation and their impact on the monetary policy. Besides, using the experience of the U.S., the article addresses two main ways to gauge inflation expectations empirically — survey-based measures (for different groups of respondents) and measures based on the data from American financial markets. Shortcomings and merits of both approaches are discussed, as well as the importance of highly developed financial markets, which can become the source of more precise information on inflation expectations.


2018 ◽  
Vol 64 (3) ◽  
pp. 239-252
Author(s):  
Alexander Mislin

Abstract This article develops an augmented price index that includes house prices, so that the relationship between inflation and unemployment levels in the traditional Phillips curve can be better represented. This general price index may be considered complementary to the Harmonised Index of Consumer Prices (HICP) and establishes the model-theoretical basis for a new-Keynesian model that derives the conditions for a monetary policy rule in a dynamic stochastic optimization procedure. Based on a simple stochastic differential equation for augmented inflation, we show that the reaction of the central bank depends on the marginal effects on augmented inflation and the output gap of an infinitesimal change in asset prices. This analysis could be interpreted as a way of using asset prices for a general price index, being an adequate method to restore monetary credibility. JEL classifications: E52, E58, G10 Keywords: monetary policy, asset prices, Phillips curve


2007 ◽  
Vol 46 (4II) ◽  
pp. 395-404 ◽  
Author(s):  
Ahsan Ul Haq Satti ◽  
Wasim Shahid Malik ◽  
Ghulam Saghir

Recently macroeconomists have moved to a new neo-classical synthesis by integrating Keynesian features like imperfect competition and nominal rigidities with dynamic stochastic general equilibrium model of the Real Business Cycle Theory with micro foundations and rational expectations, [see, for instance, McCallum and Nelson (1999)]. The standard model comprises of a trinity; consumption and inflation adjustment equations with a monetary authority’s reaction function. One of the pillar of the modelinflation adjustment equation, also known as New Keynesian Phillips Curve (NKPC) in the literature, has at least two important features; unlike the traditional Phillips curve the NKPC is forward-looking; and it has been derived from the profit maximising behaviour of the firms in a monopolistically competitive market structure.


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