A parameter 8, takes values between 1 and 3 such that Bl = 1, 82 = 2 and 8}! = 3. If there are three consumers in the market and each has an individual demand given by P = A (1/8, )g,. What is the slope of the market demand curve (dP/dO)? 00 O 1/8y 1/82 1/83 0 -1/(81 + 82 + 83) 0 It is not possible to calculate that slope. O 81 + 82 + 83