Market failure occurs a. when the output level of the firm is efficient. b. only in the presence of externalities. c. only in the presence of a monopoly. d. when the output level of the firm is inefficient. e. when firms do not maximize profits.

Food goblin supermarkets use both cashiers and baggers to serve customers at check out. during the first 6 hours of each workday (monday-friday), 3 cashiers and 2 baggers serve approximately 23 customers per hour. a cashier and a bagger who require approximately 4 minutes at checkout and 3 minutes at bagging serve each customer. a. how many employees should food goblin supermarket schedule if it requires a 12 percent capacity cushion? food goblin supermarket should schedule nothing cashier(s). (enter your response rounded up to the nearest whole number.)