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Le modèle d'évaluation des actifs basé sur … Le modèle d'évaluation des actifs basé sur la consommation (CAPM de consommation ou CCAPM) décrit les décisions simultanées de consommation et de choix de portefeuille en situation d'incertitude. Dans un cadre de choix intertemporel, les actifs financiers servent à lisser la consommation dans le temps. La fonction d'utilité du consommateur représentatif à la période t est: où u est l'utilité instantanée, la consommation à la période et est le taux subjectif de préférence pour le temps ( est le taux d'escompte subjectif).temps ( est le taux d'escompte subjectif).
, The consumption-based capital asset pricin … The consumption-based capital asset pricing model (CCAPM) is a model of the determination of expected (i.e. required) return on an investment. The foundations of this concept were laid by the research of Robert Lucas (1978) and Douglas Breeden (1979). The model is a generalization of the capital asset pricing model (CAPM). While the CAPM is derived in a static, one-period setting, the CCAPM uses a more realistic, multiple-period setup. The central implication of the CCAPM is that the expected return on an asset is related to "consumption risk", that is, how much uncertainty in consumption would come from holding the asset. Assets that lead to a large amount of uncertainty offer large expected returns, as investors want to be compensated for bearing consumption risk. The CAPM can be derived from the following special cases of the CCAPM: (1) a two-period model with quadratic utility, (2) two-periods, exponential utility, and normally-distributed returns, (3) infinite-periods, quadratic utility, and stochastic independence across time, (4) infinite periods and log utility, and (5) a first-order approximation of a general model with normal distributions. Formally, the CCAPM states that the expected risk premium on a risky asset, defined as the expected return on a risky asset less the risk free return, is proportional to the covariance of its return and consumption in the period of the return. The consumption beta is included, and the expected return is calculated as follows: where = expected return on security or portfolio = risk free rate = consumption beta (of individual company or weighted average of portfolio), and = return from the marketf portfolio), and = return from the market
, 消費CAPM（しょうひキャップエム、英: consumption-based CAPM, CCAPM）とは金融経済学やマクロ経済学における資産価格モデルの一つ。CCAPMとも呼ばれる。効用最大化問題の解としての性質を持ち、消費と金融資産の価格との関係が明示化されているという特徴がある。経済学の理論的には妥当なモデルであるが、標準的なモデルでは実証パフォーマンスが悪いことが知られている。
, Il modello di valutazione dei titoli basat … Il modello di valutazione dei titoli basato sul consumo (CAPM di consumo o CCAPM) descrive le decisioni simultanee di consumo e di scelta del portafoglio in caso di incertezza. In un'ottica di scelta intertemporale i titoli servono a smussare il consumo nel tempo. La funzione di utilità del consumatore rappresentativo è: dove u è l'utilità istantanea, il consumo al periodo e è il tasso soggettivo di preferenza per il tempo ( è il tasso di sconto soggettivo). tempo ( è il tasso di sconto soggettivo).
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消費CAPM（しょうひキャップエム、英: consumption-based CAPM, CCAPM）とは金融経済学やマクロ経済学における資産価格モデルの一つ。CCAPMとも呼ばれる。効用最大化問題の解としての性質を持ち、消費と金融資産の価格との関係が明示化されているという特徴がある。経済学の理論的には妥当なモデルであるが、標準的なモデルでは実証パフォーマンスが悪いことが知られている。
, The consumption-based capital asset pricin … The consumption-based capital asset pricing model (CCAPM) is a model of the determination of expected (i.e. required) return on an investment. The foundations of this concept were laid by the research of Robert Lucas (1978) and Douglas Breeden (1979). Formally, the CCAPM states that the expected risk premium on a risky asset, defined as the expected return on a risky asset less the risk free return, is proportional to the covariance of its return and consumption in the period of the return. The consumption beta is included, and the expected return is calculated as follows: expected return is calculated as follows:
, Il modello di valutazione dei titoli basat … Il modello di valutazione dei titoli basato sul consumo (CAPM di consumo o CCAPM) descrive le decisioni simultanee di consumo e di scelta del portafoglio in caso di incertezza. In un'ottica di scelta intertemporale i titoli servono a smussare il consumo nel tempo. La funzione di utilità del consumatore rappresentativo è: dove u è l'utilità istantanea, il consumo al periodo e è il tasso soggettivo di preferenza per il tempo ( è il tasso di sconto soggettivo). tempo ( è il tasso di sconto soggettivo).
, Le modèle d'évaluation des actifs basé sur … Le modèle d'évaluation des actifs basé sur la consommation (CAPM de consommation ou CCAPM) décrit les décisions simultanées de consommation et de choix de portefeuille en situation d'incertitude. Dans un cadre de choix intertemporel, les actifs financiers servent à lisser la consommation dans le temps. La fonction d'utilité du consommateur représentatif à la période t est: où u est l'utilité instantanée, la consommation à la période et est le taux subjectif de préférence pour le temps ( est le taux d'escompte subjectif).temps ( est le taux d'escompte subjectif).
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Modello di valutazione dei titoli basato sul consumo
, 消費CAPM
, Modèle d'évaluation des actifs basé sur la consommation
, Consumption-based capital asset pricing model
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