We study the relation between cognitive ability and the decision to invest in stocks using the recent Survey of Health, Ageing and Retirement in Europe (SHARE). The survey has detailed data on wealth and portfolio composition of individuals aged 50+ in 11 European countries and three indicators...

In this Paper we evaluate (return based) style analysis. The portfolio and positivity constraints imposed by style analysis are useful in constructing mimicking factor portfolios without short positions. We use a simple simulation experiment to show that imposing these constraints in estimating...

In this paper, we show how an investor can incorporate uncertainty about expected returns when choosing a mean-variance optimal portfolio. In contrast to the Bayesian approach to estimation error, where there is only a single prior and the investor is neutral to uncertainty, we consider the case...

We study the infinite horizon model of household portfolio choice under liquidity constraints and revisit the portfolio specialization puzzle for impatient consumers with access to riskless and risky assets. We consider a labour income process that allows us to decompose the consumption and...

We provide a detailed account of the portfolio of Italian households and its evolution, using repeated cross-sectional and panel data drawn from the 1989-95 Bank of Italy Survey of Household Income and Wealth. We offer an in-depth description of the lifetime pattern of asset holdings and their...

We study the link between portfolio choice and different college-based interaction – defined as the one that relates the portfolio choice of an investor to that of the other investors who went to the same college. We explain it in terms of a common cultural imprinting and the development of...

We develop a model of portfolio choice to nest the views of Keynes - who advocates concentration in a few familiar assets - and Markowitz - who advocates diversification across assets. We rely on the concepts of ambiguity and ambiguity aversion to formalize the idea of an investor’s...

This paper derives in closed form the optimal dynamic portfolio policy when trading is costly and security returns are predictable by signals with different mean-reversion speeds. The optimal updated portfolio is a linear combination of the existing portfolio, the optimal portfolio absent...

We estimate the portfolio effect of changes in social security wealth exploiting a decade of Italian pension reforms as a source of exogenous variation. The Italian Survey of Household Income and Wealth records detailed portfolio data and elicits expectations of retirement outcomes, thus...

We develop a model where wealthy investors have an incentive to become controlling shareholders because they can earn additional benefits by expropriating outside shareholders. As a consequence, in countries where minority investor rights are poorly protected, both domestic and foreign portfolio...