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Questions tagged [macroeconomics]

Macroeconomics is a branch of economics dealing with the aggregate economy as a whole, rather than individual markets.

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Replicating a state-space model

I am trying to replicate the results of Cochrane, 1998. Most of the paper is just describing the theory behind The Fiscal Theory of the Price Level. But from p. 42 he begins the econometrics aspect. ...
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Estimating the rental rate of capital from data

Take the classic optimization problem of the neo-classical firm: \begin{equation} \begin{array}{*2{>{\displaystyle}r}} \mbox{maximize (over $K, L$)} & f(K, L) - RK - WL \end{array} \end{...
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Consumption-Leisure Elasticity

The macro-literature insists on a consumption-leisure elasticity of 0 to match the balanced growth fact of constant labor supply. Is there any paper that tries to evaluate this elasticity using ...
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Mechanics of Sterilized Intervention?

I'm looking to see if someone can help improve my understanding of sterilized intervention in FX markets. My intuition/understanding is: Assume that the domestic currency is depreciating, perhaps ...
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Have there been any structural changes in the market that would lead the indexes to be trading so high?

If you look at this graph of the SnP500: You will see that it is trading at levels higher than pre 08 or 99. What systemic structural changes in the market have led it to be trading so high? I think ...
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With a depreciation of real exchange rate, what happens to the trade balance equilibrium output?

Let the real exchange rate $Q=\frac{P^*e}{P}$, where $P^*$ is the 'world' price level (everything with '*' is of the 'world'), $P$ is the domestic price level, and $e =\frac{\text{Home Currency}}{\...
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Is $\frac{ \Delta \ \text{endogenous variable}_1 }{\Delta \ \text{endogenous variable}_2}$ well-defined … and what is it?

When solving economic models, wec get expressions of endogenous variables (say, production $P$, or consumption $C$) in terms of parameters or exogenous variales, and we can then ask what the change in,...
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Multiplier in the two-sector Keynesian model

Which of the following is most likely to reduce the size of the multiplier in the simple (2-sector) Keynesian model? Increased taxes on savings Reduced access to government funded medical care ...
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Can technical change have a negative growth rate?

Using the following nested CES function I have backed out augmentation indices $A_L$ and $A_E$. Where $A_L$ is a labour-augmenting technical change index and $A_E$ is an energy-augmenting technical ...
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Are there empirical studies that quantify shoe-leather or menu costs?

Two theoretical arguments why a high level of inflation is bad (e.g. for growth) are: shoe-leather cost: keeping lower money balances when inflation is high (implying more frequent trips to the bank/...
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Market clearing condition with Walras law

I have a diamond overlapping model The question is as follows Let us consider an infinitely lived production economy populated at time t by $N_t$ identical and perfectly competitive adult ...
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76 views

Does Economic Growth Lead to Inflation?

As an answer to this question, it was stated that Economists believe that higher growth rates tend to also mean higher inflation rates. As a non macro-economist, I am wondering if this is true? ...
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How to pin down the bias and its/their sources in derived technical change indices?

Using the following CES function I backed out factor-augmenting indices $A_1$ and $A_2$ using OECD country level macro data. This process is akin to Solow's (1956) method for deriving technology ...
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Why is money super neutral in Brunnermeier and Sannikov's I theory of money?

I'm wondering why money is super neutral in Brunnermeier and Sannikov's "I-theory of money", but is not super neutral in their 2016 AER paper "On the optimal inflation rate". In the I-theory of money,...
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How to self-study graduate level macroeconomics? Is there even a point?

As I had hoped to learn enough macroeconomic theory to get some research ideas, my goal at the beginning of this summer was to read through and complete the problems in an introductory advanced ...
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Cost of production plant

I'm struggling to find a macroeconomic index which embodies the cost to run an average production plan. My problem is that I wanted to divide the annual average cost per employee (which I already ...
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Trade pattern in Krugman 1991

Studying the model of Krugman, 1991: the one in which good varieties are country-specific so that there is trade because in presence of increasing returns, each good is produced in only one country, I ...
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Breaking down components of GDP per capita

GDP per capita can be broken down into 4 smaller components: Labor productivity, Average hours worked, Employment rate and Participation rate as can be deduced from the following formula: What I'd ...
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Welfare function in General Capital model (Search and Matching)?

i'm working on a model from the Mortensen textbook: "Wage dispersion why are similar workers paid differently?". To be precise, i'm working on the model about general capital. In this case, capital is ...
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What would be the consequences of universal parity of buying power (wage value) and freedom to buy?

I've wondered about this for many, many, years..... maybe there's an answer (or several answers?) after all. As the global economy is set up, one reason a person in the US and EU can afford a nice ...
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What model did the MONIAC use?

Phillips designed a hydraulic computer to model the UK economy in 1949; 12-14 copies were built. What model did it compute with? How have modern models of the UK built on that work?
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Unable to resolve this linearized equation from a macro growth theory paper

$dk_{it}/dt = (W(\tilde K,\tilde l)/\tilde K)[(1+1/n)(\tilde k_i - \theta_i)(l_t - \tilde l)] + B(k_{it} - \tilde k_i)]$ This is a differential equation of individual capital stock $k_{it}$ ...
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Transportation models in economics

How would one go about modelling the effectiveness of public transportation? More specifically how does one go about comparing two transit systems in terms of their ability to move a larger numbers of ...
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Exchange rate overshooting

Let's consider a Mundell-Fleming model for the short-run, with flexible exchange rates. Now, if we have a monetary contraction (or expansion), the exchange rate path will differ whether we're in the ...
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Optimal monetary policy under commitment & FOCs

Clarida, Gali, Gertler(1999) show the optimal monetary policy problem of central bank for minimizing loss function under "Commitment" is a output gap, is a inflation rate, ~AR(1) is a supply shock. ...
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Monetary Transmission in New Keynesian - Euler Equation

I get that NK model basically consists of the three equations: Taylor rule, Dynamic IS curve and the NK Phillips curve. I want to know the effect of nominal interest rate reduction on the ...
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Question about M.I.U. model - Walsh

I am solving practice problems in Walsh. This is from 3rd edition page 87. Question 1. I have max: $$U=\sum\beta^iU(c_{t+i},\frac{M_{t+i}}{P_{t+i}})$$ s.t. $$\omega_t=f(k_{t-1})+(1-\delta)k_{t-1}+...
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Why is poverty worse in larger cities?

In inner cities in the US there is more poverty (as a proportion of the population) than in mid-sized cities or small towns. Do we have a definitive answer as to why this is?
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Kolmogorov-Forward-Equation with Entry and Exit

I'll try to ask this question in the most simplistic environment possible, so lets think about a household that can consume and save. After some cumbersome work, we have solved for the optimal savings ...
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Real time data map about the amount of a currency that are held in the world ?

Where can I see in real time data about the amount of a currency that is held in central banks (and maybe other significant places) ? A map would be great. I would like to know if there is an ...
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Research on the link of QE and increased economic activity

Im looking for good literature of quantitative easing and the effects on economic actitivty. from a modelling perspective Any empirical research? What I am thinking of, is how much of an effect ...
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Relationship between Elasticity of substitution of sectoral outputs and elasticity of substitution of inputs

There are two sectors Y1 and Y2. Composite output is given by CES form - Each sector employs Capital and Labor in combination through Cobb-Douglas Production Technology. The paper mentions that ...
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Insurance and Hirshleifer effect

I am trying to understand the statmement that 'public information kills insurance opportunity' -- referred to as Hirshleifer effect. Does it (in general) lead to some undesirable outcomes? Could you ...
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How is the level of full employment in an economy determined?

Is this a statistical thing or...? It seems very abstract to me, haha!
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Effect of Modified Utility Function on Initial and End Values of Capital, Labor and Production

I am trying to model a transition path of an economy exposed to a permanent shock to government spending on dynare via matlab. We start with these model equations (standard dynare code format). <...
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How can the number of hairdressers in the UK be up 50% since 2010?

In this recent article, The Economist argues that one of the reasons behind the anaemic recent wage growth in Britain is that the recent job growth has been concentrated in lower-productivity jobs and ...
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Solow Model - criticism of Harrod model

I have started out reading seminal paper of Solow - Solow Growth model. It starts out with discussing weaknesses in Harrod Domar Model, a simple model of economic growth which featured prior to solow'...
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Finding savings in an Overlapping Generations model

I have not seen this question asked anywhere, so I'm posing it here in case anybody else (hopefully) can help me get to the answer. In a nutshell, my question is: how do we arrive at the saving ...
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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 ...
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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 ...
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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 $z_t$ ...
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Dornbush model - relationship between i and S

In the Dornbush model, when we separate short and long run equilibrium. This is what I apparently have understood: SR1: an increase in Money Supply ($M_s$) leads to a fall in domestic interest rates (...
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373 views

Meaning of Transversality Conditions in Ramsey Problem

I'm working on a Ramsey problem for taxation, and am a little confused on the meaning/intuition behind the transversality conditions below: $\lim_{T \to \infty} \lambda_T b_{T+1} = 0$ $\lim_{T \to ...
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How can the “Share of merchandise imports at current PPPs” be negative?

I'm looking at the Penn World Table 9.0 data, and find that the "Share of merchandise imports at current PPPs" (csh_m) can be negative. For example, ...
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Difference between the International Dollar and PPP

This may be a very rudimentary question but I am trying to discern the difference between purchasing power parity and the international dollar. I am starting to work on a project where we are trying ...
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Kiyotaki-Moore v.s. Bernanke-Gertler-Gilchrist - what's the difference?

What are the key differences between (i) a model which features a "Kiyotaki-Moore collateral constraint"; and (ii) a model which incorporates a "financial accelerator" (a la Bernanke-Gertler-Gilchrist)...
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Has Trickle-Down economics ever worked?

With "trickle-down economics" on the tongue of Americans this year, I wanted to do some research. The prevailing opinion is "trickle-down economics doesn't work." I can find many resources which ...
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Theoretical - Direct Money Supply model

The following question is based on a hypothetical scenario, in which the goal(s) is/are to identify how system participants may use/abuse the system to their benefit. You are in the fortunate ...
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Is there an argument from first principles for the form of the no-ponzi condition?

in the ramsey model, we use the no ponzi condition $$\lim_{t\to\infty}e^{-R_t}a_t\geq 0$$ for assets $a_t$ that a household holds at time $t$. I understand intuitively what the reasoning behind ...
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How does the Fed predict Economic Growth?

Which factors or formulas are used by the Fed to predict Economic Growth?