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Answered) ECONOMICS 305: Question 1. The Solow Model of Economic Growth Consider the following Solow growth model with technological change and population...

I need allthe answeres to the following questions.

ECONOMICS 305: INTERMEDIATE MACROECONOMICS

PROBLEM SET 5

Please read Chapters 10, 11, 12 and 13 before attempting this assignment. Question 1. The Solow Model of Economic Growth

Consider the following Solow growth model with technological change and population

growth: = 0.5 ( )0.5 (1) = , 0 < < 1 (2) +1 = (1 âˆ’ ) + (3) +1 = 1 + , = 0.01 (4) = 1 + , = 0.02. (5) +1 a) Explain in words what each of these equations means or describes.

b) Write down the goods market equilibrium condition for the model.

c) Combine the goods market equilibrium condition with equations (1) through (3) to find

an equation that describes the change in the capital stock between dates t and t+1 in terms

of the levels of inputs to production at date t. Explain in words what determines this change

over time; whether it is positive or negative or zero.

d) Now take each variable in the model and divide it by . Use these transformed

variables to re-express the equation you derived in c) as an equation that describes the

change in the capital stock per effective worker between dates t and t+1. Explain in words

what determines this change over time; whether it is positive or negative or zero.

e) Define and describe in words a long-run, steady state equilibrium of this economy.

Depict a long-run, steady state equilibrium in a diagram and label the diagram carefully.

What condition on the equation that you derived in d) would measure or captured this

steady state?

f) In the steady state equilibrium, what will be the numerical values of the growth rates of

aggregate output, the aggregate capital stock, aggregate investment, and aggregate savings?

What will be the numerical values of the growth rate of output per worker, and capital per worker? What will be the numerical values of the growth rate of output per effective labor

unit and capital per effective labor unit?

g) What would be the qualitative impact of an increase in s for the steady state level of

capital per effective worker and output per effective worker? Show this in a diagram.

h) What would be the qualitative impact of an increase in s for the steady state growth

rates of output, capital, savings and investment? What is the impact of an increase in s for

output per worker?

i) What factors will cause a change the steady state growth rate of this economy? What

types of policies would a government have to enact to increase the steady state growth rate

of the economy? Would an increase in the steady state growth rate of the economy increase

living standards in the steady state? Explain carefully. Question 2. More on the Solow Growth Model

a) Re-do Question 1, parts b) through d), assuming that the production function is given by = 0.3 ( )0.7 . (1â€™) b) If the production function is given by (1â€™) how does this affect your answers to Question

1 parts e) through i), if at all?

c) Derive expressions for the steady state level of capital per effective worker and output

per effective worker for the case where the production function is given by (1) and the case

where it is given by (1â€™).

d) Assume that depreciation is 10 percent per year, and the savings rate is twenty percent.

What are the steady state levels of capital and output per effective worker for the case

where the production function is given by (1) and the case where it is given by (1â€™).

Compare them and explain in words how and why they are different, if they are.

e) Now assume that the savings rate increases from twenty percent to thirty percent. How

does this affect the steady state levels of capital and output per effective worker when the

production function is given by (1) and when it is given by (1â€™). Compare them and explain

in words how and why they are different, if they are.

f) Now assume that the growth rate of technological change increases from 2 percent to 3

percent per annum. How does this affect the steady state levels of capital and output

per effective worker when the production function is given by (1) and when it is given by

(1â€™). Compare them and explain in words how and why they are different, if they are. Question 3. Growth Accounting

Assume the Cobb-Douglas production function (1â€™) determines aggregate real GDP.

a) Derive a â€œgrowth rateâ€ version of (1â€™) which shows how the growth rate of real GDP

is determined by the growth rates of technology, employment, and capital.

b) Now collect at least ten years of annual data on:

Real GDP (https://fred.stlouisfed.org/series/GDPCA allows download into excel

file)

Employment (https://fred.stlouisfed.org/series/B4701C0A222NBEA

allows download into excel file)

Capital (https://fred.stlouisfed.org/series/RKNANPUSA666NRUG allows download

into excel file).

c) Compute the annual growth rate of each of the data series you downloaded or

otherwise collected in b). Compute the implied annual growth rate of technology at

each date. Now compute the sample average annual growth rates of all four

variables.

d) Using the equation you derived in a), and your results in c), what fraction of real

GDP annual average growth over your sample period is accounted for by i) capital

growth, ii) employment growth, and iii) technological change.

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