Which of the following market structures has the highest barriers to entry?

Moving from the most market power being #1 to the least market power being #4, match the correct market power number to the market structure listed below. 

Suppose you won $15 on a lotto ticket at the local 7-Eleven and decided to spend all the winnings on candy bars and bags of peanuts. Candy bars cost $0.75 each while bags of peanuts cost $1.50 each. What is the opportunity cost of one more candy bar? (Write your answer in numeric form with one decimal for example 1.2)

If the economy relies entirely on private market to answer the what to produce question, it tends to _____ goods with external benefits and _____ goods with external costs.

Social costs:

True or False.  The national debt is an accumulation of the budget deficits and surpluses over time.

Suppose you won $15 on a lotto ticket at the local 7-Eleven and decided to spend all the winnings on candy bars and bags of peanuts. Candy bars cost $0.75 each while bags of peanuts cost $1.50 each. What is the opportunity cost of one more candy bar? (Write your answer in numeric form with one decimal for example 1.2)

True or False. The optimal amount of externality reduction occurs where society’s marginal cost, MC, is greater then the marginal benefit, MB.

A bank that has liabilities of $140 billion and a net worth of $20 billion must have

Ceteris paribus, which of the following will cause the supply of paper to decrease?