A firm produces two products, X and Y. The production technology displays the following costs, where C(i, j) represents the cost of producing i units of X and j units of Y:

C(0, 50) 5 100 C(5, 0) 5 150 C(0, 100) 5 210 C(10, 0) 5 320 C(5, 50) 5 240 C(10, 100) 5 500 Does this production technology display economies of scale? Of scope?