Questions tagged [solow]
Referring to the Solow-Swan model of economic growth.
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questions
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Solow Model vs. Ramsey Model [closed]
I am a little confused. Our professor gave us the task of working out the similarities and differences between the Solow Model and Ramsey Model (both without technological progress) and which model ...
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0answers
38 views
Recent Research Topics in Macroeconomics (Hopefully Growth Theory)
Im in my last year as undergraduate and i have the opportunity to make a tesis, i have strong foundations in econometrics and macroeconomics but I don't know what the latest research on macroeconomics ...
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1answer
59 views
What does "mass" mean in a Macroeconomic model?
A Solow model problem I am trying to solve asks me to assume that the economy consists of identical agents of mass 1. I have never heard of this term before, what does this mean?
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1answer
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Derivation of Solow Growth Model (Solow, 1956)
In Solow's "A Contribution to the Theory of Economic Growth" paper, how do we go from this equation
to
such that
Could you please give me a hint about that derivation?
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1answer
35 views
Solow model response function
Consider a Solow model without technological progress so that the steady state $k^*$ occurs at $sf(k^*) = (n+\delta)k^*$ where $n$ is population growth rate, $\delta$ is capital depreciation rate and $...
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How to draw a diagram like Solow model to prove growth rate in Harrod-Domar model won't converge?
Solow model defines income per capita function f(k)=F(K/L,1) with f'(k)>0 and f''(k)<0 and proves that there must be an intersection with (gL+gA+δ)k where growth rate converges.
But it confuses ...
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0answers
27 views
What is a rest-function in a Solow model?
I am trying to better understand the Solow-Swan growth model and the golden saving rate.
When searching around I came across a blog explaining the intuition differently. Instead of in the standard ...
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1answer
37 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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1answer
174 views
Constant returns to scale and diminishing marginal returns in the Solow model
My introduction to economics course had a section on the Solow model which I'm revising for next year. I'm a little confused by two of the assumptions which our lectuer taught us are made by the Solow ...
2
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1answer
59 views
Human Capital Vs TFP
I'm interested in familiarizing myself with some of the intra-debates that have occurred over the years, having to do with Mankiw, Romer, Weil (1992) and Klenow, Rodriguez-Clare (1997). Some argue ...
2
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1answer
56 views
Solow model: Partial derivative of k* with respect to g
Given the solow model
$sf(k)=(n+g+\delta)k$, written as
$$F=sf(k^\star)-(n+g+\delta)k^\star=0$$
I am trying to find the partial derivative of k* with respect to n
Here is what I've tried: I use the ...
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1answer
47 views
Transitional Dynamics of consumption per capita in solow model
I can write the transitional dynamics of output per capita as follows
$$y=f(k)$$
Take its derivative with respect to time t
$$ \dot{y} =f’(k) \dot{k}$$
Divide it by $k/k$
$$ \dot{y} =f’(k) \frac{\dot{...
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1answer
44 views
Is this a total derivative - if yes, why minus
This is the beginning of the derivation of equation of motion from the Solow model (Romer, 2019):
My question is: is this the total derivative (w.r.t. ultimate source of change "t")? If yes,...
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1answer
35 views
Would some help me fill in missing steps from a textbook exercise left for the reader
Question: Suppose $C_t=(1-s)Y_t-\lambda G_t$ where $s>\sigma$ as in the basic Solow model.
Out of the government expenditure , proportion $\phi$ is invested in public capital formation. Hence we ...
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1answer
44 views
Would someone be able to help me solve capital per capita in the steady state (check my work)
Question: Suppose $C_t=(1-s)Y_t$ where $s>\sigma$ as in the basic Solow model. Solve for capital per capita in the steady state.
$Y_t=K^{\alpha}_tL^{1-\alpha}_t$
$Y_t=C_t+I_t+G_t$
$K_{t+1}=I_t+(1-\...
2
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1answer
168 views
Matlab: Solow Model Convergence of capital
I am currently trying to create a while-loop which iterates the evolution of the capital stock until it converges on the n-th digit. As I am still quite new to Matlab I face a lot of problems. I would ...
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1answer
34 views
Solow model and a change in the savings rate
In the solow model why does an increase in the savings rate shift the investment curve instead of move along it? Intuitively not mathematically
Thanks
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2answers
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Why does a rise in the savings rate result in an increase in the capital stock intuitively?
I understand mathematically how it works. But what is the actual process intuitively.
Thanks
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1answer
113 views
How to take the derivative and show that MPL in the Solow model is equal to real wage w
I am taking macro course this Fall and my calculus is quite rusty. So in the lecture notes they derive the following:
$$MPL = dY/dL = d(ALf(k))/dL = Af(k) + ALf'(k) (-K)/(L^2 A) = A(f(k) - kf'(k)) = ...
2
votes
1answer
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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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1answer
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Solow model and economic interpretation of $\dot{K}=sY(t)$
I am reading Robert Solow's 1956 paper, entitled 'A Contribution to the Theory of Economic Growth'. I am trying to understand the economic interpretation of the differential equation $$\dot{K}=sY(t),$$...
2
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1answer
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The Solow model and his 1956 paper
Reading through Robert Solow's 1956 paper, entitled "The Theory of Economic Growth", I was hoping to find his fundamental difference equation. I was wondering if the following equation is indeed that ...
3
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2answers
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"If markets are competitive, the rate of return on capital equals its marginal product, $f'(k)$ minus depreciation $\delta$"?
Consider Solow model with $Y=(AL)^{1-a}K^a$. Then output per effective labor is $y=k^a$ where $k=\frac{K}{AL}$.
"If markets are competitive, the rate of return on capital equals its marginal product,...
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Solow model: effect on a sudden fall in population? [closed]
my question is, what happens in the Solow model when a sudden fall in population happens? let's say a bomb killed many people.
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1answer
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Is the steady state of $k$ enough to show $Y$ grows at the rate $n+g$?
To provide some context for the question: I was approached by a student needing help for a an empirical thesis based on Solow-Swan model. She had trouble solving the theoretical model she wanted to ...
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Which model gives a more accurate representation of growth?
Does the Solow model or the combined Romer - Solow model give a more accurate representation of growth?
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1answer
27 views
Steady state growth of output
In the long run Solow steady state, the growth rate of output in a country is g + n. If there is some other country with exactly the same properties of the first country and the same initial ...
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Solow growth model on firms level
Probably a silly question, but I just have to make sure. I am wondering whether it is acceptable to use the solow / solow-swan growth model to model the growth of firm instead of growth of an economy?
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1answer
168 views
Attributing Labor Productivity Gains to Capital Deepening vs. Total Factor Productivity Growth
In a traditional Solow-Swan growth model, you can decompose growth in labor productivity (output/hour) into a component stemming from total factor productivity growth and another stemming from capital ...
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1answer
38 views
Looking for help with Solow Model Question [closed]
The question is this:
Suppose there is a production function of $Q=F(K, L)=\sqrt{K}\sqrt{L}$. Suppose that MPC=0.8 and the labor force is growing at a rate of 0.05 per year. Also labor force ...
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1answer
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Data Set for Mankiw, Romer, and Weil 1992
I am trying to replicate the results of Mankiw, Romer and Weil 1992, and cannot seem to find the original data.
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2answers
106 views
If an economy has capital that is less than the golden rule level of capital, can we reach the golden rule without increasing the savings rate?
This question is in context of this problem I was trying to solve:
The answer given is (a). But I think the answer is (C). My arguments are as follows:
First, the golden rule level of capital ...
3
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1answer
286 views
Wages in Solow growth model with savings = 0
I am trying to understand the change of wage rate and rental rate in the Solow growth model with s = 0. It is clear that capital per capita will approach 0 (due to depreciation of capital). Also is ...
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1answer
38 views
Here's a question about the solow model [closed]
At first, I was confused by how y keeps increasing after depreciation exceeds savings, then I finally found what was truly bothering me. The fact that when depreciation exceeds savings, capital per ...
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vote
1answer
91 views
Growth Rate of Solow Model
Conside the following Cobb-Douglas Production Function:
$$Y_t=\bar AK_t^{1/3}\bar L^{2/3}$$
The growth rate of per capita GDP for this equation in continuous time is $\frac{y'_t}{y_t}= \frac{1}{3K_t}$...
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1answer
323 views
The growth rate in the Solow model
Consider a very simple version of the Solow model with discrete time, a fixed population size and no technological progress (a fuller description of the assumptions is outlined here). Capital is at '...
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1answer
222 views
How to Calculate the productivity multiplier?
Given a Cobb Douglas
$Y_t = A (K_t^\alpha L_t^{1-\alpha}) $
$ K_{t+1} = sY_t + (1-\delta) K_t$
How do we get the multiplier on productivity to be equal to $ \frac{1}{1-\alpha}$?
I understand ...
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0answers
511 views
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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1answer
261 views
Solow model golden rule with my exact answer
In a perfectly competitive Solow economy with physical capital accumulation, population growth and a Cobb-Douglas production function, show that the “golden rule” steady-state would be reached if at ...
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0answers
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Improve my solution: Question on solow model
There is a question about Solow growth and Ramsey model,
compared to solow model, the Ramsey model is better to explain growth patterns across countries because it predicts a slower convergence ...
3
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0answers
256 views
Solow growth model deriving solutions
I was reading a note on Solow model in continuous time, and it said we can derive K, C, and Y from the key equation. But the steps were omitted, and I have no clue with it. How can I derive these ...
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1answer
142 views
Sustainable growth in the long run [closed]
Suppose that, in addition to physical capital and labour, an economy requires a fixed factor and a non-renewable resource to produce the final good. Prove that an economy with these input requirements ...
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0answers
55 views
Trying to apply Solow model to the US econmy
In a textbook application I try to apply Solow model to the US economy. What will be a ballpark estimate of the saving rate and the depreciation rate?
Edit: To follow up, assume Cobb-Douglas with ...
2
votes
1answer
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How is the Solow residual measured?
In the Solow model, we have the Solow residual often referred to as the level of technology A.
More particularly : \begin{equation} Y(t) = [K(t)]^{\alpha} [A(t)L(t)]^{1-\alpha} \end{equation}
Here ...
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1answer
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Macroeconomic Measures of Human Capital
How exactly do you measure human capital for a given country and what numbers are included in that measure.
The reason why I ask is because im interested in simulating the Mankiw–Romer–Weil version ...
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1answer
79 views
Was there a Role of Technology in Macroeconomic Models before Solow?
Was the role of technological progress formalised by Solow (1956) for the first time? or at least he provided the initial formal insight into the role of technological progress in economic growth?
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1answer
970 views
Solow growth model - analytic proof that Inada conditions imply steady state capital is increasing in the savings rate
Let's take the example of a generic Harrod-neutral (labor-augmenting) production function $f(k)$; all letters denote the growth rates they usually would. In the regular Solow growth model with the ...
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1answer
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Effect of population growth on Solow steady state
My textbook says that:
Ratio of capital per capita to income per capita in the steady state is a positive function of s and an inverse function of η and δ. Thus, k*/y* is a constant. This means ...
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1answer
154 views
What happens to aggregate C, K, and Y when TFP increases permanently?
I was wondering what would happen to aggregate capital, consumption and output (i.e. K, C, Y) in the Solow model with constant population growth (i.e. n > 0) and no technological growth (i.e. a = 0) ...
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2answers
948 views
Basic Solow Growth Model: Stability Proof
I am reading through McCandless "The ABCs of RBCs" this summer to get a preview of what I need to know for the coming Fall semester. It did not take long to find a statement that I can easily accept ...
