Econ 7040 Macroeconomic Analysis Tutorial 4
Hello, dear friend, you can consult us at any time if you have any questions, add WeChat: daixieit
Macroeconomic Analysis (Econ 7040)
Tutorial 4: Endogenous Growth model
1. Let’s now make the evolution of technology endogenous. Assume that Y(t) = A(t)(1 aL)L(t),
and
A˙(t) = B[aLL(t)] A(t), B > 0, 0
where A˙(t) = is the time derivative of A or the rate of change of A.
(a) Assume that = 1. Is there a long-run growth rate of knowledge (A) in this economy (balanced growth path)? under what conditions?
(b) Use the condition derived before for the exitence of a balanced growth path and derive the long-run growth rate of knowledge (A) and GDP per-capita (y).
(c) Analyze the eect of an increase in aL (assume that the condition for the existence of balanced growth path is met). What is the new long-run equilibrium? how does the the economy transit (converge) to the new balanced growth path?
(d) Answer the previous question but now assuming that < 1. What is the new long-run equilibrium (with higher aL)? how does the economy evolves in the short run?
2022-04-02