A monopoly, unlike a perfectly competitive firm, has some market power. Thus, it can raise its price, within limits, without quantity demanded falling to zero. The main way monopolies retain their market power is through barriers to entry, which prevent other companies from entering monopolized markets and competing for customers. Consider the market for natural gas. In this 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 and hoses makes it risky and most likely unprofitable for a competitor to enter the market. Which of the following best explains the barriers to entry that exist in this scenario? a. Control over an important input.
b. Legal barriers.
c. Increasing returns to scale.

Responsible for setting the goals and planning for the future as well as leading and controlling the work of others. out the decisions of top management. often responsible for various departments such as the production, marketing, and accounting departments. process or function of planning organizing leading and controlling. the resources arranged in an orderly and functional way to accomplish goals and objectives. the company on track and making sure goals are met. for the daily operations of a business. examples of this are supervisors, office managers, and crew leaders. act or process of creating goals and objectives as well as the strategies to meet them. for the daily operations of a business. examples of this are supervisors, office managers, and crew leaders. how the firm is structured and who is in charge of whom. direction and vision

Sales at a fast-food restaurant average $6,000 per day. the restaurant decided to introduce an advertising campaign to increase daily sales. to determine the effectiveness of the advertising campaign, a sample of 49 days of sales were taken. they found that the average daily sales were $6,300 per day. from past history, the restaurant knew that its population standard deviation is about $1,000. if the level of significance is 0.01, have sales increased as a result of the advertising campaign? multiple choicea)fail to reject the null hypothesis.b)reject the null hypothesis and conclude the mean is higher than $6,000 per day.c)reject the null hypothesis and conclude the mean is lower than $6,000 per day.d)reject the null hypothesis and conclude that the mean is equal to $6,000 per day.expert answer

Which of the following statements is not correct? the stock of publicly owned companies must generally be registered with and reported to a regulatory agency such as the sec. when stock in a closely held corporation is offered to the public for the first time, the transaction is called "going public, or an ipo," and the market for such stock is called the new issue or ipo market. "going public" establishes a firm's true intrinsic value and ensures that a liquid market will always exist for the firm's shares. if you wanted to know what rate of return stocks have provided in the past, you could examine data on the dow jones industrial index, the s& p 500 index, or the nasdaq index.