Questions tagged [dsge]

DSGE - Dynamic Stochastic General Equilibrium models.

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Bootstrapping standard errors in SMM estimation

I have estimated a number of key parameters in a model by the Simulated Method of Moments. So far, I have computed asymptotic standard errors (that rely on computing numerical derivatives, where we ...
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34 views

Economic growth in a DSGE model, despite mean-zero shocks

The DSGEs I've seen have steady-states, and mean-zero shocks. Can these predict growth in GDP / capital etc? Is this possible despite them being equilibrium models, or do you have to completely change ...
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49 views

IS equation in a DSGE: interpretation

I am solving a DSGE model and I derived the following expression for the IS equation: However, I have some problems interpreting this equation. How would you interpret it? is the domestic output is ...
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2answers
84 views

Questions regarding DSGE model

Christiano,2017, abstract stated that Macroeconomic policy questions involve trade-offs between competing forces in the economy. The problem is how to assess the strength of those forces for the ...
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28 views

Get empirical steady state moments for calibrating a DSGE model

I want to calibrate some parameters of my DSGE model so that in the steady state some variable ratios, that are present in data, are met. My question is, how do I get such ratios from time series ...
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1answer
54 views

Separation rate

I want to refer to the paper Aggregate implications of indivisible labor, incomplete markets, and labor market frictions. In Footnote 9, there is a brief explanation of how the separation rate is ...
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23 views

Why do investment adjustment and capital adjustment costs yield different dynamics?

Both the Business Cycle and DSGE literature find that Investment adjustment costs and capital adjustment costs give rise to different dynamics for investment, output, consumption etc. Investment ...
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38 views

Deriving the New Keynesian Phillips Curve (NKPC)

I have a question regarding the NKPC. I would like to know if it is possible to derive the NKPC from a sticky prices model, without making assumptions regarding the production function firms face. I ...
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2answers
242 views

Ultra simple DSGE to implement

I want to create a DSGE model in Python. I want to build it myself to help me understand it (not just use a library) Can someone direct me to a very simple model which would be straightforward to ...
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42 views

Inflation in Equilibrium

Suppose we have the following market-clearing condition for the goods market within a New-Keynesian setting: $$ c_t = (1-\alpha)(1-\frac{\phi}{2}\pi_t^2)y_t + \alpha (1-\frac{\phi}{2}\pi_{t-1}^2)y_{t-...
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32 views

Problem to find steady state when I assume Y=1

I am trying to do a DSGE model in Matlab, I have all the steady state equations on paper and pencil but I fail to find values for all variables. Indeed, since I have constant return to scale, I have ...
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40 views

Forecast from DSGE

My basic understanding of a DSGE is that it comuptes the equilibrium values for GDP, inflation, etc and then shows you how these would respond to different hypothetical exogeneous shocks. How do you ...
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Derive optimal wage in New Keynesian-Calvo wage stickiness

Following Costa, 2016 in page 96, developing the labor variety optimal wage decided by the household, the FOC is: $$0=E_t\sum_{i=0}^\infty(\beta\theta_w)^{t+i}\left\{\psi_W\left[L_{t+i}\left(\frac{W_{...
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27 views

Solving complex RBC/DSGE models

Why is it important for policymakers (central bankers, the treasury department, the finance ministry etc.) to be able to solve complex dsge/rbc models as quickly and as efficiently as possible? I am a ...
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16 views

Increase in money supply when price are flexible in the basic new keynesian model

I would like to know what would be the effect on price and quantities of an increase in money supply in the basic new keyensian model. What happen if price are fully flexible ? What if prices are ...
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1answer
37 views

How to define the natural rate output

I'm following Woodford's Interest & Prices to derive the microfundations for a New Keynesian model with staggereed prices. I defined the utility function and disutility function (1.1 at page 144) ...
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2answers
78 views

Basic New Keynesian model with flexible price

I would like to know what would be the response of variables in the Basic New Keynesian model but with flexible prices (ie not with Calvo pricing). For example I have troubles to see how having ...
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22 views

functional form for a consumption shock

In a DSGE model, how can I add a disturbance/shock in the consumption of households? For example given my utility function $$ U(C,H) = \frac{C_t^{1-\theta}}{1-\theta} - \frac{B}{\eta} H_t^\eta,$$ ...
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1answer
55 views

Search and Matching model with 2 agents?

I would like to know if you know any model with Search and matching framework (Mortenses-Pisarides style) with 2 types of workers (like Ricardian and rule of thumb consumers for exemple) ? I would ...
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Dynamic model calibration of rate parameters

Let's say I have this dynamic model where $\delta$ is the depreciation rate of capital $K_t$: $$K_{t+1}=sY_t+(1-\delta)K_t$$ Now, if I'm going to make some analysis where I state time $t$ as being in ...
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1answer
34 views

Is IS-LM still used in research or we learn it just to understand basic macro?

Since i had my "Introduction to advanced macroeconomics" and discovered DSGE i've been wondering if IS-LM is used in research, i know it was used in the 80's or so, but now?
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1answer
55 views

How can difference equations with an infinite summation be represented in matrix form?

I have derived the microeconomic foundations of a dsge model and I've obtained the IS and NKPC. I would like to represent them in matrix form to study the system. However the problem is that both ...
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Derivation question: Gali (2015), chapter 5, equation 25

I am wondering how Gali derived equation (25) in chapter 5 of his book Monetary Policy, Inflation, and the Business Cycle (2015). We have equation (21): $$ \vartheta \hat{x}_{t} = -\kappa \hat{p}_{t} +...
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Scope of DSGE models

Since DSGE models are a type of growth models that focus on assessing short term evaluation of economic fluctuations. Most of the models that I have seen are policy related, that assess the effect of ...
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1answer
43 views

Elasticity of intertemporal sustitution with composite CRRA function

In the usual CRRA $\frac{c^{1-\sigma}-1}{1-\sigma}$ function we have that the intertemporal elasticity of sustitution $\partial\frac{c_{t+1}}{{c_{t}}{\partial r}}$ is $\frac{1}{\sigma}$. But how can ...
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55 views

Literature on DSGE models featuring a financial sector

I recently read a ECB primer on DSGE models featuring the financial sector and became interested in the field. I also started to read some of the earlier literature in that field (e.g. Gertler & ...
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26 views

Are business cycle fluctuations usually studied in a (New Keynesian) DSGE model, or can they also be studied in a growth model?

I wonder if business cycle fluctuations are usually studied in a (New Keynesian) DSGE model, or can they also be studied in a growth model?
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What would it mean for a parameter region to be E-stable but undeterminate?

What would it mean for a parameter region for a dynamic system to be E-stable, but indeterminate? E-stable: it's stable under learning... so this means, once in equilibrium, you stay there? Or does it ...
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determinacy vs. indeterminacy of equilibria in dynamic systems

As explained in Hommes (2018), equilibria in dynamic systems, like DSGE models, can either be determinate or indeterminate. A REE (rational expectations equilibrium) is determinate when there exists a ...
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1answer
46 views

What is meant by the abbreviation 'MSV solution', used in the context of DSGE modeling?

What is meant by the abbreviation MSV solution, used in the context of adaptive learning in DSGE modeling? E.g. see Bullard and Mitra (2002) minimum state variable (MSV) solutions it is in full, but ...
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2answers
153 views

Expected inflation in the real interest rate equation

Real interest rate = Nominal rate - Expected inflation In the above equation, in a quarterly data-set, which expected inflation shall be used? next quarter (q+1) or the same quarter of next year (q+4)...
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44 views

Micro foundations of the Phillips Curve

In a typical NKPC: $Inflation_t = \alpha_1 Inflation_{t-1} + (1-\alpha_1) \mathbb{E}_tInflation_{t+1} + \alpha_2 RealMarginalCost + \epsilon_t$ From a micro-foundations perspective, does the ...
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Are heterogenous expectations models still determinate, closed models?

Cars Hommes proposed many models based on agents having heterogeneous expectations. Agents switch between a fixed set of prediction rules depending on their forecast error history. However, it seems ...
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1answer
39 views

Why does a model that is used for policy analysis needs its shocks and parameters to be structural (= invariant) to the shock under consideration?

In their paper, " New Keynesian Models: Not Yet Useful for Policy Analysis" V. V. Chari, Patrick J. Kehoe, and Ellen R. McGrattan argue that one needs a structural model in order to analyse the ...
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148 views

Are overlapping generation (OLG) models extensions of a DSGE model?

Are overlapping generation models (OLG) extensions of a dynamic stochastic general equilibrium (DSGE) model? Or aren't these DSGE per se?
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Inertia and rational expectations DSGE models

What types of inertia or other phenomena in the data are hard to model with New Keynesian or other DSGE models assuming rational expectations?
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46 views

Positive productivity shock with a fall in output

I am modeling a two-country world. Within each country there exists a representative infinitely-lived agent, a representative final good producer, a continuum of domestic monopolistic competitive ...
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55 views

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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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 ...
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23 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?
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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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1answer
80 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 ...
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1answer
127 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 ...
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35 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}^{\...
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1answer
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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 ...
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35 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 ...
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212 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 ...
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1answer
22 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 ...
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34 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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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 ...