Economies of scale imply that within some range one can increase the size of operation and: a. average total cost will increase. b. average variable cost will decrease. c. average total cost will decrease. d. fixed cost will decrease. e. total cost will decrease.

Sam owns speedy bricklayers, inc., a company that specializes in bricklaying. to maintain his business's reputation for quick, quality bricklaying, sam requires that all employees are experienced bricklayers. this discriminates against potential employees who have never laid bricks before. sam is likely: