Manuel and poornima are building their portfolios. manuel purchases shares in a mutual fund and pays fees to a manager who actively manages the mutual fund's portfolio. he does so because he believes that the manager can identify inexpensive stocks that will rise in value. poornima is not convinced. she buys shares in an index fund-a type of mutual fund that simply buys all of the stocks in a given stock index rather than actively managing a portfolio. manuel builds his portfolio on the supposition that: the stock market exhibits informational efficiency. stock analysts can use fundamental analysis to identify undervalued stocks. stock prices follow a random walk.

Now ray has had the tires for two months and he notices that the tread has started to pull away from the tire. he has already contacted the place who sold the tires and calmly and accurately explained the problem. they didn’t him because they no longer carry that tire. so he talked with the manager and he still did not get the tire replaced. his consumer rights are being violated. pretend you are ray and write a letter to the company’s headquarters. here are some points to keep in mind when writing the letter: include your name, address, and account number, if appropriate. describe your purchase (name of product, serial numbers, date and location of purchase). state the problem and give the history of how you tried to resolve the problem. ask for a specific action. include how you can be reached.