ADMS 3531 Chapter Notes - Chapter 2: Modern Portfolio Theory, Risk Premium, Expected Return

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Diversification is important for managing investment risk. Role and impact of diversification were first formally explained in the early 1950s by financial pioneer harry markowitz. Suppose we have two stocks netcap and jmart (netcap is expected to have a return of 25 percent in the coming year; Jmart is expected to have a return of 20 percent during the same period) The expected return could turn out to be significantly higher or lower. Expected return: average return on a risky asset expected in the future. Suppose if you hold jmart for a number of years, you"ll earn 30 percent about half the time and 10 percent the other half. You should expect to earn 20% from this stock, on average. For netcap, the probabilities are the same, but the possible returns are different. Here, we lose 20 percent half the time, and we gain 70 percent the other half. You should expect to earn 25% from this stock, on average.

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