UNEMPLOYMENT (1) Flashcards
Unemployment in neoclassical model
Wages always adjust to ensure labour market clears = NO involuntary unemployment. all unemployment is voluntary.
Supply of labour in neoclassical
Can be fixed labour supply or upwards sloping.
Neoclassical model is good at explaining
LR trends in participation - change between employment and out of LF.
2 ways neoclassical model can explain gender specific change in LF participation
- Higher demand for women’s labour due to tech change/sectoral change (also explains reduction in gender wage gap)
- Higher female supply due to change in gender norms and tech change in home production.
Weakness of neoclassical model
Doesn’t explain changes in unemployment since no unemployment in the model.
How does introducing wage rigidity change the neoclassical model?
Wages don’t adjust following shock –> involuntary unemployment.
4 reasons for wage rigidity.
- LR contracts agreed in advance
- Min wage
- Unions and collective bargaining
- Efficiency wages/
2 limitations of wage rigidity model
- Why is urate > 0 even in booms - unrealistic to assume w > w* at all times.
- Is it realistic for LR contracts to be mutually inefficient (Barro critique) - in interest of workers and firms to cut wages in a recession.
Search frictions =
Workers and firms cannot find each other immediately.
What type of unemployment do search frictions generate?
Involuntary since workers are searching for a job but can’t find one.
One-sided search model focuses on…
The search effort behaviour of workers.
2 things we do NOT model in 1 sided model
- firm’s search behaviour
2. Workers’ decision to be out of LF - we only model involuntary U.
Fractions unemployed and employed
U = unemployed
1 - U = employed
Separation rate =
S = the fraction of employed workers who lose their job every period = exogenous,
p =
Probability of receiving a job offer.
An unemployed worker with a job offer will compare…
- The value of becoming employed Ve(W)
2. The value of staying unemployed Vu
What does Ve(W) depend on? (2)
- Increasing and concave function of offered wage
- Decreasing in separation rate
what does Vu depends on? (3)
Independent of wage
Increasing in b
Increasing in probability of getting another job offer next period.
What do we assume about workers search efforts?
That once they accept a job, they stop searching even for a better one.
Workers will accept an offer if…
w > reservation wage So Ve(W) > Vu
H(W) =
Graph looks like
The fraction of workers receiving a job offer greater than W. decreasing in W. Graph is non-linear but decreasing.
Flow of workers from employed to unemployed
S(1 - U)
Flow of workers from unemployed to employed =
UpH(W*)
How do we find LR unemployment?
In the LR urate is stationary:
S(1 - U) = UpH(W*)
Solve for U once have functional form for H.
If we increase b, what happens to LR unemployment?
higher b = higher reservation wage = fall in H(W*) = this pivots down = urate rises
Trade-off with b
- providing insurance
2. providing incentives