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[50 points]
The setup of the problem is as follows:
- The firm has to choose how much labor to hire in order to maximize profits.
The production function is
.
Assume that K=1, A=2, and that
.
The real wage (expressed in terms of the consumption good) is w.
- The agent has to choose between working (N) and enjoying leisure. The total available time is
normalized to 1, so we have that N=1-L.
- The utility over consumption and leisure is defined as follows:
where
.
The agent has no wealth and can consume only what she earns working, so:
C=wN.
a) Write the firm's problem and find the first order condition. Plot the labor demand curve in a graph with N in the
X axis and w in the Y axis.
b) Write the agent's problem and find the first order condition.
Plot the labor supply curve in a graph with N in the
X axis and w in the Y axis (be aware that
).
c) Find the equilibrium in the labor market, i.e. the equilibrium w and N.
d) Now assume that the utility over consumption and leisure is defined as follows:
, where
and
.
Write the agent's problem. Find the first order condition.
Plot the labor supply curve in a graph with N in the X axis and w in the Y axis. (Note that for
the labor supply curve is not defined.)
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Marco Del Negro
2000-02-29