A firm in a purely competitive industry is currently producing 1,000 unit per day at a total cost of $450. If the firm produce 800 units per days, its total cost would be $300, and if it produce 500 units per day, its total cost would be $275.

a) What are the firm's ATC per unit at these three levels of production? If every firm in this industry has the same cost structure, is the industry in long-run competitive equilibrium?

b) From what you know about these firms? cost structures, what is the highest possible price per unit that could exist as the market prices in long-run equilibrium? If that price ends up being the market price and if the normal rate of profit is 10 percent, then how big will each firm's accounting profit per unit be?

Problem 3: access control pokeygram, a cutting-edge new email start-up, is setting up building access for its employees. there are two types of employees: managers and engineers, and there are three departments: security, networking, and human resoures. each employee works in a single department, and each department is housed on a different floor. managers are allowed access to any floor, while engineers are allowed access only to their own floor. there are three badge-operated elevators, each going up to only one distinct floor. every employee has one badge. pokeygram wants to use the best possible access control method in order to minimize delay for the elevators (a) access control matrix, 1. which of the following would you recommend that pokeygram use: (b) access control lists, or (c) capabilities? make sure to justify your answer. 2. what, if any, would be the benefits (and/or disadvantages) of using rbac (role-based access control) in this situation? keep your solution for this problem limited to 10-12 lines of text.

Andrea's opportunity cost rate is 12 percent compounded annually. how much must he deposit in an account today if he wants to receive $2,100 at the beginning of each of the next seven years? use the equation method to determine the amount.

If big macs were a durable good that could be costlessly transported between countries, which of the following would present an arbitrage opportunity? check all that apply. exporting big macs from argentina to the united states. exporting big macs from the united kingdom to poland. exporting big macs from switzerland to china