Answers
) diminishing returns is when MPL starts falling , from 3rd unit of Labor, thus when 3rd Labor unit is hired.
2) this Labor market is perfectly Competitive
3) at profit maximization, wages = VMPL
Thus at Labor units equal to 5
4.)So the profit maximization rule, so VMPL is greater than or equal to wages.
So now wage is 100.
Thus hire L equals to 4
5.) TR, TC, profit is for L=4 where profit is maximum when wages equal to 100.
TR = 720, TC = 450, profit = 270.
6) optimal level of employment = 4 workers
Bcoz at eqm, VMPL >= wages, independent of fixed costs level
Optimal level of employment = 4 workers Bcoz at eqm, VMPL > = wages, independent of fixed costs level