FINS1613 Lecture Notes - Lecture 10: Capital Asset Pricing Model, Risk Premium, Systematic Risk
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Camp is used to calculate the expected return of an asset j. It is the expected return in the market on investment with equivalent risk to the risk associated with the security: beta: measures the level of systematic risk relative to that of the market. The market has a beta of 1 and the risk-free asset has a beta of 0: market risk premium: the average return market participants demand for bearing the (cid:373)arket(cid:859)s s(cid:455)ste(cid:373)ati(cid:272) risk, market risk premium = e(rm) - rf. The capm can also be applied to portfolios: The sml plots the expected return on a security as a function of its beta. It implies that a se(cid:272)urit(cid:455)(cid:859)s retur(cid:374) li(cid:374)earl(cid:455) depe(cid:374)ds o(cid:374) s(cid:455)ste(cid:373)ati(cid:272) risk. Securities (portfolios) with betas less than 1 are expected to return less than the market. Securities (portfolios) with betas greater than 1 are expected to return more than the market.
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