Compared to the purely competitive industry, a pure monopoly: a) is often more efficient from society's perspective because it has big plants and it uses the newest technology.
b) will always become competitive in the long run because positive economic profits will entice competitors into the market.
c) produces an equal amount of output, but charges higher prices to cover all costs in the market.
d) is able to use barriers to entry and maintain positive economic profits in the long run.

Concrete consulting co. has the following accounts in its ledger: cash; accounts receivable; supplies; office equipment; accounts payable; jason payne, capital; jason payne, drawing; fees earned; rent expense; advertising expense; utilities expense; miscellaneous expense. transactions oct. 1 paid rent for the month, $3,600. 3 paid advertising expense, $1,200. 5 paid cash for supplies, $750. 6 purchased office equipment on account, $8,000. 10 received cash from customers on account, $14,800. 15 paid creditors on account, $7,110. 27 paid cash for miscellaneous expenses, $400. 30 paid telephone bill (utility expense) for the month, $250. 31 fees earned and billed to customers for the month, $33,100. 31 paid electricity bill (utility expense) for the month, $1,050. 31 withdrew cash for personal use, $2,500. journalize the following selected transactions for october 2019 in a two-column journal. refer to the chart of accounts for exact wording of account titles

In the short-run, marginal costs are equal to the change in variable costs as output changes. ( mc = change in variable cost / change in quantity) assume that capital is fixed in the short-run. (a) start with the equation for marginal cost and derive an equation that relates marginal cost of production to the cost and productivity of labor. (b) draw a standard looking short-run marginal cost curve and use the equation you derived to explain its shape.

Xavier and shawn are co-owners of a party-planning business. they split all of the profits 50-50 and are able to make decisions that are binding on both parties. at one of their parties a guest is injured on a piece of equipment. the guest sues xavier and shawn, and they find they're personally liable for any damages. what kind of business structure do they have? question 8 options: sole proprietorship general partnership limited liability company corporation