Companies often are under pressure to meet or beat Wall Street earnings projections in order to increase stock prices and also to increase the value of stock options. Some resort to earnings management practices to artificially create desired results. Required: I. How can a company manage earnings by changing its depreciation method? Is this an effective technique to manage earnings? 2. How can a company manage earnings by changing the estimated useful lives of depreciable assets? Is this an effective technique to manage earnings? 3. Using a fictitious example and numbers you make up, describe in your own words how asset impairment losses could be used to manage earnings. How might that benefit the company?