Answer:
B. Chat
Explanation:
A. Antivirus is a program that runs on your computer and prevents it from being infected by stuff encountered on the Internet.
B. Chat is a messaging service that uses the Internet to work. It's not a classical Internet service like the Web or email, but that's the closest thing in your answer choices.
C. A Firewall is another form of protection from the Internet, it blocks certain communications, but a firewall is not a service and it's not Internet-based.
D. Router is a machine that directs traffic between computers, not a service.
The assumption in perfect competition that there is an easy entry and exit from the market implies that firms will make a zero economic profit in the long run.
<h3>Why do firms make a zero economic profit?</h3>
In a pure competition, companies are allowed to freely enter and leave.
They take advantage of this to enter a market when prices are high and economic profit is being made.
As more firms enter, the economic profit keeps decreasing as prices decrease until this profit gets to zero and then turns to economic losses.
At this point, some firms will leave the market to stop making losses. When they do, the supply will decrease which leads to prices rising once more.
The cycle will then repeat itself and keep the companies at a zero economic profit in the long run.
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Answer:
1. The company's profit margin is 13.4% percent.
profit margin = net income / net sales = $45,064 / $336,329 = 13.4%
2. The total asset turnover is 0.82 times.
asset turnover ratio = net sales / average assets = $336,329 / [($387,891 + $432,000)/2] = $336,329 / $409,945.50 = 0.82
3. The equity multiplier is 1.7 times.
equity multiplier = average total assets / average total equity = $409,945.50 / [($205,936 + $275,000)/2] = $409,945.50 / $240,468 = 1.70
4. Using the Du Pont Identity, the company's ROE is 18.68% percent.
ROE = profit margin x asset turnover x equity multiplier (or financial leverage) = 0.134 x 0.82 x 1.7 = 0.1868 = 18.68%
