Firm Market Share (%) A 40 B 30 C 20 D 5 E 5   Refer to the data. If Firm B merged with Firm E, the industry's four-firm concentration ratio would ____ and its Herfindahl index would ____.

Industry A is composed of three firms.  One has an 80% market share, and the other two have a 10% share each.  The Herfindahl index for this industry is:

IF YOU ANSWER THIS ALREADY, PLEASE GIVE IT TO ANOTHER TUTOR P          14         13           12         11         10          9           8           7             6            5 QD       50        100        150       200       250       300       350       400        450       500 Consider a market with the above demand and two firms.  Both firms have a constant marginal cost of 7. 1. What price should these firms charge to maximize total industry profit? (Note: the marginal condition we learned will work here but you need to be careful because the changes in quantity on the schedule are not 1.  Because of this, you might want to use a brute force approach here.  It's worth thinking about how you would reconcile it with the marginal condition though.  Also, the marginal condition doesn't match exactly so take the best number from the schedule.) 2. Assuming that if they set the same price, they split the market evenly, what will the profit of each firm be if they both set the above…

Due to , a natural monopoly's average cost is  as its output rises.     a Economies of scale; increasing b Economies of scale; decreasing c Diseconomies of scale; increasing d Diseconomies of scale; decreasing