If scale economies are modest a) there is perfect competition in the industry. b) entry into the industry is difficult. c) a single firm is likely to dominate the market. d) there is room in the industry for a large number of firms Of scale economies are modest a) there is perfect competition in the industry. b) entry into the industry is difficult. c) a single firm is likely to dominate the market. d) there is room in the industry for a large number of firms