Suppose the price elasticity of demand for heating oil is 0.1 in the short run and 0.9 in the long run. if the price of heating oil rises from $1.20 to $1.80 per gallon, the quantity of heating oil demanded will by % in the short run and by % in the long run. the change is in the long run because people can respond easily to the change in the price of heating oil.

M. cotteleer electronics supplies microcomputer circuitry to a company that incorporates microprocessors into refrigerators and other home appliances. one of the components has an annual demand of 235 units, and this is constant throughout the year. carrying cost is estimated to be $1.25 per unit per year, and the ordering (setup) cost is $21 per order. a) to minimize cost, how many units should be ordered each time an order is placed? b) how many orders per year are needed with the optimal policy? c) what is the average inventory if costs are minimized? d) suppose that the ordering cost is not $21, and cotteleer has been ordering 125 units each time an order is placed. for this order policy (of q = 125) to be optimal, determine what the ordering cost would have to be.