A monopoly, unlike a perfectly competitive firm, has some market power. Thus, it can raise the price, within limits, without quantity demanded falling to zero. The main way it retains its market power is through barriers of entry--that is, other companies cannot enter the market to create competition in that particular industry.

Which barrier to entry explains why a monopoly exists in each scenario.

1. In the public water industry, low average total costs are obtained only through large-scale production. In other words, the initial cost of setting up all the necessary pipes makes it risky and, most likely, unprofitable for competitors to enter the market.

2. The Aluminum Company of America (Alcoa) formerly controlled all U. S. sources of bauxite, a key component in the production of aluminum. Given that Alcoa did not sell bauxite to any other companies, Alcoa was a monopolist in the U. S. aluminum industry from the late-nineteenth century until the 1940s.

3. Patents are granted to inventors of a product or process for a certain number of years. The reason for this is to encourage innovation in the economy. Without the existence of patents, it is argued that research and development for improved pharmaceutical products is unlikely to take place, since there is nothing preventing another firm from stealing the idea, copying the product, and producing it without incurring the development costs.

a. Exclusive ownership of a key resource
b. Government-created monopolies
c. Economies of scale

Journalize the following transactions that occurred in september 2015 for aquamarines. no explanations are needed. identify each accounts payable and accounts receivable with the vendor or customer name. sep. 3 purchased merchandise inventory on account from shallin wholesalers, $5,000. terms 1/15, n/eom, fob shipping point. 4 paid freight bill of $80 on september 3 purchase. 4 purchased merchandise inventory for cash of $1,700. 6 returned $500 of inventory from september 3 purchase. 8 sold merchandise inventory to hermosa company, $6,000, on account. terms 2/15, n/35. cost of goods, $2,640. 9 purchased merchandise inventory on account from thomas wholesalers, $8,000. terms 2/10, n/30, fob destination. 10 made payment to shallin wholesalers for goods purchased on september 3, less return and discount. 12 received payment from hermosa company, less discount. 13 after negotiations, received a $200 allowance from thomas wholesalers. 15 sold merchandise inventory to jordan company, $2,500, on account. terms 1/10, n/eom. cost of goods, $1,050. 22 made payment, less allowance, to thomas wholesalers for goods purchased on september 9. 23 jordan company returned $400 of the merchandise sold on september 15. cost of goods, $160. 25 sold merchandise inventory to smithsons for $1,100 on account that cost $400. terms of 2/10, n/30 were offered, fob shipping point. as a courtesy to smithsons, $75 of freight was added to the invoice for which cash was paid by aquamarines. 26 after negotiations, granted a $100 allowance to smithsons for merchandise purchased on september 25. 29 received payment from smithsons, less allowance and discount. 30 received payment from jordan company, less return.

The struter partnership has total partners’ equity of $510,000, which is made up of main, capital, $400,000, and frist, capital, $110,000. the partners share net income and loss in a ratio of 80% to main and 20% to frist. on november 1, adison is admitted to the partnership and given a 15% interest in equity and a 15% share in any income and loss. prepare journal entries to record the admission of adison for a 15% interest in the equity and a 15% share in any income and loss under the following independent assumptions. (1) record the admission of adison with an investment of $90,000 for a 15% interest in the equity and a 15% share in any income and loss. (2) record the admission of adison with an investment of $120,000 for a 15% interest in the equity and a 15% share in any income and loss. (3) record the admission of adison with an investment of $80,000 for a 15% interest in the equity and a 15% share in any income and loss.

Afood worker has just rinsed a dish after cleaning it.what should he do next?