Question: In a competitive market where Qd = 560-6P and Qs = -46+28.7P the initial price P0 is £50. Derive a function for the time path of P and use it to predict price in time period 5 given that price adjusts in proportion to excess demand at the rate
dP = 0.01(Qd - Qs)
dt
How many time periods would you have to wait for the price to drop by £20?