1.
Given: Price = $5 per unit & wage = $14 per hour
Value of Marginal Product of labour(VMPL) = P x MPL
Labour | Output | MPL | VMPL |
0 | 0 | 0 | - |
1 |
10 | 10 | 50 |
2 | 25 | 15 | 75 |
3 | 37 | 12 | 60 |
4 | 45 | 8 | 40 |
5 | 50 | 5 | 25 |
6 | 54 | 4 | 20 |
7 | 56 | 2 | 10 |
8 | 57 | 1 | 5 |
The perfectly competitive firm reaches its equilibrium and maximises profit when:
VMPL = w
We see that for the 7th worker, VMPL($10) < Wage($14).So, we'll hire only 6 workers.
2.
Now, if employees negotiate a wage of $26 per hour, from the above table we can see that for the 5th worker,
VMPL($25) < Wage($26), so we'll hire only 4 workers.
3.
We know that,
Total Revenue(TR) = Price x Quantity
Marginal Revenue(MR) = TRn -TRn-1
Marginal Revenue Product(MRP) = MPL x MR
Labour | Output | MPL | Price | TR | MR | MRP |
0 | 0 | - | 0 | - | - | - |
1 | 10 | 10 | $18.00 | $180 | 180 | 1800 |
2 | 25 | 15 | 8.69 | 217.25 | 37.25 | 558.75 |
3 | 37 | 12 | 6.25 | 231.25 | 14 | 168 |
4 | 45 | 8 | 5.40 | 243 | 11.75 | 94 |
5 | 50 | 5 | 5.06 | 253 | 10 | 50 |
6 | 54 | 4 | 4.85 | 261.9 | 8.9 | 35.6 |
7 | 56 | 2 | 4.75 | 266 | 4.1 | 8.2 |
8 | 57 | 1 | 4.70 | 267.9 | 1.9 | 1.9 |
The monopolist firm, being a profit maximiser, will be in
equilibrium when :
MRPL = w
The wage is $14 per hour. For the 7th worker, we see that MPL(8.2) < w(14) so, the firm will hire only 6 workers.
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