Il modello di Black-Litterman (BL) è uno strumento molto efficace capace di rispondere positivamente alle critiche mosse —anche ingiustificatamente— al modello di ottimizzazione di portafoglio media-varianza. È uno strumento efficace in grado di integrare in modo coerente le prospettive dell’investitore all’interno di un modello di equilibrio generale. Consente di tenere
MICERs are on the prowl again. And by following them an investor, with a good aim and on her or his lucky day, might even find out some interesting information about undervalued (overvalued) stocks to add (subtract) to his portfolio and reap a refreshing excess return. An update on S&P
MICERs are Market Implied Consensus Expected Returns and are the result – in terms of risk premium – of a reverse optimization using some available market information about variances, covariances and capitalizations. Investors express their views about stocks by collectively holding the market portfolio, by doing so market capitalizations represent
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Rodolfo Vanzini
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