Long Run for the Firm Using a graph, identify production and cost in the long run. When reading the long-run cost curve from left to right, which is the correct order of economies of scale as reflected in the curve? a.) Diseconomies of scale, constant returns-to-scale, economies of Scale b.) Constant returns-to-scale, diseconomies of scale, economies of scale c.) Economies of scale, constant returns-to-scale, diseconomies of scale d.) Constant returns-to-scale, economies of scale, diseconomies of scale