a. How would the growth rate of ideas behave if a <1? b. Assuming a = 1, solve for the new growth rate of knowledge and growth rate of output per capita. C. Assuming a = 1, sketch the graph of Inyt against time t.

ENGR.ECONOMIC ANALYSIS
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Chapter1: Making Economics Decisions
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Please assist to solve the below question.
Suppose an economy is on a balanced growth path in a simple Romer model, as described in the
text, where aggregate output is:
Y, = A,Lyt,
law of motion of ideas (idea production function) is:
AA++1 = ZA“, Lat ;
labour resource constraint is:
Ly +Lat = L,
and the allocation of labour is:
La = IL,
%3D
where z is a productivity parameter of the researchers, Ao is the existing stock of ideas at
time, t = 0, L is the total population and assumed to be constant, and i is the constant
fraction of population who works in the research sector.
Suppose in year 2030, research productivity z rises immediately and permanently to the
new level z'.
а.
How would the growth rate of ideas behave if a <1?
b.
Assuming a = 1, solve for the new growth rate of knowledge and growth rate of output per
capita.
С.
Assuming a = 1, sketch the graph of Iny against time t.
d.
Why might research productivity increase in an economy?
Transcribed Image Text:Please assist to solve the below question. Suppose an economy is on a balanced growth path in a simple Romer model, as described in the text, where aggregate output is: Y, = A,Lyt, law of motion of ideas (idea production function) is: AA++1 = ZA“, Lat ; labour resource constraint is: Ly +Lat = L, and the allocation of labour is: La = IL, %3D where z is a productivity parameter of the researchers, Ao is the existing stock of ideas at time, t = 0, L is the total population and assumed to be constant, and i is the constant fraction of population who works in the research sector. Suppose in year 2030, research productivity z rises immediately and permanently to the new level z'. а. How would the growth rate of ideas behave if a <1? b. Assuming a = 1, solve for the new growth rate of knowledge and growth rate of output per capita. С. Assuming a = 1, sketch the graph of Iny against time t. d. Why might research productivity increase in an economy?
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