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Sentence completion (2 points for each correct sentence) 11. The increase in the total cost as one additional unit is produced is cost. 12. Economies of scale mean the average total cost decreases with increase in of goods produced. 13. Pharmaceutical companies charge the customers a higher price after generics enter the market because the customers have demand. 14. A rm selling its product to two groups of customers for different prices should prevent to make price discrimination successful