手法を比較

	資本資産価格モデル（CAPM）	最小二乗法 (OLS) 回帰
分野	ファイナンス	計量経済学
系統	Regression model	Regression model
提唱年	1964	2019
提唱者	William F. Sharpe & John Lintner	Wooldridge (textbook treatment); classical least squares
種類	Equilibrium asset-pricing model	Linear regression
原典	Sharpe, W. F. (1964). Capital asset prices: A theory of market equilibrium under conditions of risk. The Journal of Finance, 19(3), 425–442.	Wooldridge, J. M. (2019). Introductory Econometrics: A Modern Approach (7th ed.). Cengage Learning. ISBN: 978-1337558860
別名	Capital Asset Pricing Model, Sharpe-Lintner CAPM, security market line, Sermaye Varlıkları Fiyatlama Modeli	ordinary least squares, classical linear regression, linear regression, en küçük kareler regresyonu
関連	2	5
概要	The Capital Asset Pricing Model (CAPM), developed by William Sharpe and John Lintner in the mid-1960s, links the expected return of an asset to its systematic risk, measured by beta. It states that in equilibrium investors are rewarded only for risk that cannot be diversified away: the expected excess return of an asset is proportional to the expected excess return of the market, with beta as the constant of proportionality. CAPM underpins the cost of equity, performance benchmarking, and a vast body of asset-pricing research.	Ordinary Least Squares is the classical linear regression method that explains a continuous outcome as a linear combination of predictors. It estimates the coefficients by minimising the sum of squared residuals, and under the Gauss-Markov assumptions these estimates are the best linear unbiased estimator (BLUE).