What plant size would the firm need in order to achieve minimum efficient scale (MES)? Plant 3 e. At what output level does the firm achieve MES? Output: 60 f. If R2D2 is producing an output of 10 in plant 3, does excess capacity exist? Yes g. What would be the economic capacity for plant 2? Output: h. Given the LRAC curve in the above graph, at what output levels are there economies of scale? Outputs up to i. Given the LRAC curve in the above graph, between what output levels are constant returns to scale present? Outputs between and j. Given the LRAC curve in the above graph, above what output levels do diseconomies of scale exist? Output above