Questions tagged [dsge]
DSGE - Dynamic Stochastic General Equilibrium models.
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questions
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Elasticity of substitution in leisure
This might be a very basic question, but I am a beginner in macro models. I would appreciate help with my doubt.
In different papers I have read about the elasticity of labor supply or the inverse of ...
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0answers
7 views
Are typical macro DSGE (RBC or New Keynesian DSGE) models linear, non-linear, or log (linearized)?
In Carl Hommes 2015 book on Expectations, it seems he considers DSGE models (being it either RBC DSGE or New Keynesian DSGE) to be linear, or (log)linearized models, on page 3 of the introduction. He ...
0
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1answer
16 views
What are main reasons a typical DSGE model is called non-linear? Why are these non-linearities important?
What are main reasons a typical DSGE model is called non-linear? Why are these non-linearities important? Is a non-linear model inherently less stable than a linear model? Why?
2
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0answers
31 views
Log-linear version of current account equation
I am working on my thesis, doing a two-country model with traded and non-traded goods considering incomplete asset markets and imperfect pass-through. In a sense, I am following Benigno & ...
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0answers
14 views
Log-linearization of real exchange rate
I have a doubt on how to log linearize an expression for the real exchange rate. I have read in several papers that they express it using substitutions. I haven't been able to find out what ...
0
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1answer
16 views
Log-linear version of the uncovered interest rate parity
I am trying to derive the log-linear version of the uncovered interest rate parity under complete asset markets.
I know that the UIP condition is given by
$$(1+i_t)=(1+i^*_t)\frac{S_{t+1}}{S_t}$$
I ...
1
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0answers
28 views
Non-traded goods in Two Country New Keynesian Model
I am working on a two-country New Keynesian model, where I include traded and non-traded goods. The final good is produced using traded and non-traded inputs:
$$
Z_t=\bigg[a^\frac{1}{\kappa}Z_{T,t}^{\...
0
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1answer
62 views
Questions about the future of macroeconomic modeling and the role of simultaneous equation systems
I started to study about macroeconomic modeling and I am interested in the following questions. I understand that there are no definite answers to these questions. But I am interested in the opinion ...
0
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1answer
26 views
DSGE model with agents that develop their skills
Are there DSGE models with agents with different skill levels (and according wage differences) who can develop or lose their skills and with employees with dynamic/changing skill levels and skill ...
1
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1answer
77 views
Solving Euler Equation for standard DSGE Models
I am studying a rather standard DSGE Model with a standard Utility function $U = f(c_t, n_t, M_t)$ subject to a budget constraint. Now, tosolve the intertemporal optimization problem I have, or ...
0
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0answers
11 views
Where to find series of capital-output ratio for the US?
While the capital-output ratio is widely used in Macroeconomics as a target in calibration, it is usually just set to be equal to 3, without specifying the data source nor the methodology used to ...
0
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1answer
24 views
Percentage/proportion of published papers with DSGE models
I remember reading a few years back an article that showed an interesting graphic with the percentage/proportion of published papers with DSGE models across time. I've tried searching, but I get so ...
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0answers
47 views
What's the advantage of DSGE relative to BVARs?
DSGE models and BVARs are commonly used in academia and policy circles.
They generate different performances (e.g., in forecasting) and perhaps serve different purposes. Notwithstanding, they have a ...
3
votes
1answer
57 views
Is there any mainstream criticism of the Benes-Kumhof conclusion that the Chicago Plan would improve the US economy nowadays?
A 2012 IMF Working paper by Benes and Kumhof "The Chicago Plan Revisited
" has this abstract, finding in favor of the Chicago Plan an all counts basically:
At the height of the Great Depression a ...
3
votes
1answer
136 views
What is the appeal of DSGE models?
As far as I understand people like them, because they fit the data quite well when compared to VAR's for example while also having an economic interpretation.
They appear to explain observations in a ...
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0answers
21 views
Deriving Sufficient Conditions For Existence of Unique Non-Explosive Equilibrium In DSGE Model With Hybrid New Keynesian Phillips Curve
Consider the following New Keynesian DSGE Model with standard notation:
$\pi_t = \kappa y_t + \gamma_f \mathbb{E}_t[\pi_{t+1}] + \gamma_b \pi_{t-1},$
$y_t = \mathbb{E}_t[y_{t+1}] - \frac{1}{\sigma}(...
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0answers
14 views
Optimal Tax Rates on BGP
I was going through this paper by Aghion et al. I wanted some clarification on some of the computations. I understood the process uptil the normalization on page 22. Then we can get some policy rules ...
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0answers
57 views
Use of DSGE models for the day-to-day government policy decisions? If no - then what are obstacles?
Are DSGE models used for the day-to-day government policy estimation and optimization? E.g. can DSGE model be used for estimation of the return of additional investments in education and how those ...
2
votes
1answer
75 views
How to derive the measurement equation for the state-space representation of a DSGE model?
DSGE models, after log-linearisation, have a state-space representation.
In this representation, in most papers, the measurement/observation equation is simply stated.
I'm wondering how one deduces ...
0
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1answer
20 views
A possible typo in Herbst and Schorfheide book of DSGE estimation
In a state-space representation, the measurement equation is something of this form $O_t=H_t s_t + u_t$, where $O_t$ are the observational data at time $t$, $H_t$ is a possibly time-dependent matrix ...
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0answers
19 views
Deducing eq. (39) of Sims (2002)
Here's the Sims(2002) paper
How does one deduce equation (39) from that paper?
Any help would be appreciated.
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0answers
57 views
Cleaning data for DSGE model estimation: An and Schorfheide (2007)
In Herbst and Schorfheide "Bayesian Estimation of DSGE Models", in the appendix named "Data Sources", they show several formulas relating the empirical data which should be used for the model.
Here's ...
2
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0answers
47 views
What are the linearised equations for the flexible economy in Smets and Wouters (2007)?
To solve the Smets and Wouters (2007) model, we need the linearised equation for the economy when wages and prices are flexible (monetary policy rule depends on the potential output).
However, in ...
2
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0answers
26 views
How to deal with potential output in the Sims (2002) framework?
In Sims(2002), the author explains how one solves a linear rational expectations model.
$$\Gamma_0S_t=\Gamma_1S_{t-1}+C+\Psi z_t + \Pi \mu_t$$
The only thing exogenously defined in the $z_t$ ...
4
votes
1answer
332 views
Good paper/article on the mechanisms in RBC vs New Keynesian models
I have read technical books about the (baseline) RBC and New Keynesian models.
However, these books tend not to explain very intuitively the propagation mechanisms of shocks between the two models, ...
3
votes
1answer
57 views
Basic New Keynesian Model - Price and Wage Level after shock
I'm currently solving a new Keynesian model with government spending. It's the basic model version, with constant returns to scale on the only production factor work.
Everything has worked out fine ...
5
votes
1answer
234 views
Differences between GMM and MSM?
In wikipedia, the main difference between GMM and MSM(Method of simulated Moments) is in the former the moment/orthogonality conditions can be evaluated analytically, while in the latter they cannot ...
1
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1answer
99 views
DSGE Model Solutions as a Vector Time-Series process. Examples?
I'm trying to understand how the solutions of a DSGE model can be seen as VAR or VARMA.
Can you give examples of DSGE model solutions which can be seen as such? Also, does this only happen when we ...
4
votes
1answer
577 views
What exactly is certainty equivalence in the context of DSGE models?
I keep reading about certainty equivalence in the context of DSGE models.
I understand that it has something to do with "Getting rid of the expectation operator", but I'm not entirely sure? What ...
2
votes
1answer
2k views
intuition behind the blanchard kahn conditions?
In order for a DSGE model to have a unique solution, it is required to satisfy the Blanchard Kahn conditions. However, these conditions seem very abstract to me.
Is there an intuition behind the ...
1
vote
1answer
535 views
Textbook on the mathematics of RBC/DSGE models?
I'm reading David Romer's Macroeconomics. However, what I don't like is that he doesn't go at all into detail about the mathematical underpinnings of RBC/DSGE models. When it comes to the central ...
2
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0answers
275 views
What are some good video lectures on DSGE modeling?
Are there any online resources on Dynamic Stochastic General Equilibrium models supplied with video lectures, which include theory and some practical examples of fitting models as well? I did not find ...
5
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1answer
50 views
In economic modelling, how are we sure the linearized equilibria behave similarly to original equilibria?
The following problem is in the context of continuous time, although I suspect something could be said about discrete time also.
Let's assume that we have the following equation:
$$\dot x=f(x)$$
...
3
votes
1answer
105 views
Value function iterations with hyperbolic discounting
I am currently working to the numerical solution of a model similar to the consumption-savings decision model with hyperbolic discounting as in Krussel et al. (2003).
Even if hyperbolic discounting ...
2
votes
1answer
316 views
Interest rate rule in monetary DSGE model
I am studying DSGE models and try to solve exercise 2.2 from Gali's (2008) book. In short, consider the simple classical economy where the following approximate equilibrium conditions must be ...
0
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1answer
67 views
Depreciation vs. obsolescence in RBC and New Keynesian DSGE models
A common calibration for depreciation rates within RBC models is to assume 10% depreciation rate (based on NIPA stats, for instance). This implies a half-life of about 6.5 years. But this estimate ...
0
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1answer
238 views
Intuition for the CES consumption index in New-Keynesian DSGE models
I don’t understand, from an intuitive point of view, the CES aggregator in the context of a New Keynsian DSGE model. I understand that the consumption index Ct is the sum of all consumption goods and ...
0
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1answer
313 views
Log linearization of the technology dynamic
I am still dealing with DSGE models and with log-linearization of characteristic equations of the model. The one that creates me more doubts is the technology shock, that is usually modeled as an AR(1)...
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1answer
136 views
Evaluation around steady state for a specific DSGE Model
The following equations are taken from Ravenna, walsh: "Optimal Monetary Policy with Unemployment and Sticky Prices" (2011).
(i)$$\frac{Z_{t}}{\mu_{t}} = w_t + \frac{\kappa}{q_{t}} - (1-\rho)E_{t}(\...
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0answers
346 views
SVAR Historical decomposition
Does anyone know how to do VAR historical decomposition of a series in R?
3
votes
1answer
115 views
Convert DSGE paper to structural econometrics, anything to be noted？
I'm intent to bring some insights of a DSGE paper to a structural econometric model. The paper is Liu, Wang and Zha's 2013 Econometrica paper on land collateral channel. Now I have some good datasets ...
4
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1answer
1k views
DSGE models (Dynare) are only based on simulations and approximations? (without data)
I'm beginner in DSGE models. Are they only based on simulations and approximations? Don't we have any real data-sets (for example interest rate, labor force, etc) ...
5
votes
1answer
136 views
What methods - inspired by Haavelmo’s Structural Econometrics - can show that a partial equilibrium model is unreliable?
According to Spanos 2014 Revisiting Haavelmo's Structural econometrics: Bridging the gap between theory and data Dynamic Stochastic General Equilibrium models are statistically inadequate, in such an ...
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2answers
1k views
Can Dynare solve general equilibrium (GE) models with non-convex adjustment costs?
I know that Dynare (which sits on top of Matlab) can solve many kinds of dynamic stochastic general equilibrium (DSGE) and overlapping generations (OLG) models. I also know that Dynare can handle some ...
6
votes
1answer
139 views
State of general equilibrium theories Post Blanchard 2008
This question arose from a useful comment I received upon answering a question on this site, and a recent question from a doctoral student.
The so-called theory of general equilibrium (including the ...
3
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1answer
1k views
Government expenditure multiplier in the new-Keynesian model?
Does a temporary increase in government expenditure increase output in the standard new-Keynesian DSGE model? Is it possible to draw any intuitive parallels between the impact of government ...
