1976
DOI: 10.1111/j.1540-6261.1976.tb01963.x
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Multiperiod Portfolio Analysis And The Inefficiency Of The Market Portfolio

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Cited by 26 publications
(12 citation statements)
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“…Equation (8) demonstrates that as N increases, variance distortion also increases. Equation (8) also shows that if security autocorrelation is limited to the first few lag intervals, as N increases, VDN increases and asymptotically approaches the fixed value indicated by equation (9). Equations (8) and (9) also show that relatively small amounts of autocorrelation can produce substantial levels of variance distortion.…”
Section: Substitutingmentioning
confidence: 93%
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“…Equation (8) demonstrates that as N increases, variance distortion also increases. Equation (8) also shows that if security autocorrelation is limited to the first few lag intervals, as N increases, VDN increases and asymptotically approaches the fixed value indicated by equation (9). Equations (8) and (9) also show that relatively small amounts of autocorrelation can produce substantial levels of variance distortion.…”
Section: Substitutingmentioning
confidence: 93%
“…Equations (8) and (9) show that as the holding period assumption is lengthened, security variance becomes a positive function of security autocorrelation. This effect can be tested by measuring the extent to which the Tobin (non-autocorrelation) model of security variance (equation (2)) is inaccurate.…”
Section: Variance As a Function Of Holding Period Lengthmentioning
confidence: 99%
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“…Contrary to the intuition, we draw the conclusion, in term of practical examples, that rebalancing a portfolio does not necessarily improve the efficiency before its maturity. Furthermore, we surprisingly find that rebalancing a portfolio is even inferior to the buy-and-hold strategy when the simple rebalancing strategy supported by Gressis, Philippatos & Hayya [10] is considered, especially when transaction cost is considered. However, the stochastic rebalancing strategy is still superior to the buy-and-hold strategy.…”
Section: Discussionmentioning
confidence: 91%
“…Apesar de vastamente utilizado, o modelo original de média-variância tem recebido críticas desde sua introdução, como em (Gressis et al (1976)) e (Campbell e Viceira (2001)). Recentemente, estas críticas têm se concentrado sobre a utilização da variância como medida de risco na otimização de portfólios, pois ela não considera de forma apropriada a característica de "caudas gordas"de algumas distribuições e por penalizar uniformemente os desvios positivos e negativos, ver (Artzner et al (1999)), (Rockafellar et al (2006)), (Ortobelli et al (2005)) e (Fabozzi et al (2007)).…”
Section: Introductionunclassified