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In finance, the capital asset pricing model ( CAPM) is a model used to determine a theoretically appropriate required rate of return of an asset, to make decisions about adding assets to a well-diversified portfolio . The model takes into account the asset's sensitivity to non-diversifiable risk (also known as systematic risk or market risk ...
Financial analysts use CAPM to estimate the fair value of a stock by considering factors such as the stock’s volatility , the risk-free interest rate and the equity risk premium – the premium ...
Consumption-based capital asset pricing model. The consumption-based capital asset pricing model ( CCAPM) is a model of the determination of expected (i.e. required) return on an investment. [1] The foundations of this concept were laid by the research of Robert Lucas (1978) and Douglas Breeden (1979). [2]
Note that some finance and economic theories assume that market participants can borrow at the risk-free rate; in practice, very few (if any) borrowers have access to finance at the risk free rate. The risk-free rate of return is the key input into cost of capital calculations such as those performed using the capital asset pricing model. The ...
Modern portfolio theory ( MPT ), or mean-variance analysis, is a mathematical framework for assembling a portfolio of assets such that the expected return is maximized for a given level of risk. It is a formalization and extension of diversification in investing, the idea that owning different kinds of financial assets is less risky than owning ...
In finance, Jensen's alpha [1] (or Jensen's Performance Index, ex-post alpha) is used to determine the abnormal return of a security or portfolio of securities over the theoretical expected return. It is a version of the standard alpha based on a theoretical performance instead of a market index . The security could be any asset, such as stocks ...
Arbitrage pricing theory. In finance, arbitrage pricing theory ( APT) is a multi-factor model for asset pricing which relates various macro-economic (systematic) risk variables to the pricing of financial assets. Proposed by economist Stephen Ross in 1976, [1] it is widely believed to be an improved alternative to its predecessor, the capital ...
The concept of the stochastic discount factor (SDF) is used in financial economics and mathematical finance. The name derives from the price of an asset being computable by "discounting" the future cash flow by the stochastic factor , and then taking the expectation. [1] This definition is of fundamental importance in asset pricing. If there ...
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