Help with the microeconomics question below

7) 3) Suppose an economy is characterized by the following equations: Price setting: P = (1 + m) (W/A) Wage setting: W = A9P9(1 u) (10 points) a) Explain briey the effect of an increase inA on P in the price setting relation. b) Why is there a positive relation between Wand Ag in the wage setting relation? 0) Solve for the rate of unemployment when P9 = P and A" = A. d) Solve for the natural rate of unemployment if the mark-up (m) is equal to 7%. e) Does the natural rate of unemployment depend on productivity? Explain. What are the benets of a strict patent protection, with long average duration times for a patent? What are the disadvantages? Why do developing countries oen choose to have poor patent protection? What are the possible disadvantages for the developing countries themselves? (6 points)