This paper is concerned with testing the time series implications of the capital asset pricing model (CAPM) due to Sharpe (1964) and Lintner (1965), when the number of securities, N, is large relative to the time dimension, T, of the return series. Two new tests of CAPM are proposed that exploit...

This paper extends the cross sectionally augmented panel unit root test proposed by Pesaran (2007) to the case of a multifactor structure. The basic idea is to exploit information regarding the unobserved factors that are shared by other time series in addition to the variable under...

There is a persistent association between health and portfolio choice, but hardly anything is known about the underlying sources of heterogeneity: what makes healthier individuals hold more risky assets? This paper uses rich Dutch longitudinal data to take into account and explain unobserved...

This paper explores reporting bias and heterogeneity in the measure of self-assessed health (SAH) used in the British Household Panel Survey (BHPS). The ninth wave of the BHPS includes the SF-36 general health questionnaire, which incorporates a different wording to the self-assessed health...

This paper investigates the persistence in health limitations for individuals within the member states of the European Union. We use the full 8 waves of data available in the European Community Household Panel (ECHP) to explore the relative contributions of state dependence, unobserved...

Individual heterogeneity plays a key role in explaining variation in self-reported well-being and, in particular, health satisfaction. It is hypothesised that the inuence of this heterogeneity varies over levels of health and increases over the life-cycle. These hypotheses are tested with data...

The nature of the relationship between health and income is still not clearly defined. It is believed that personal income affects health but this may not be the end of the story. Income may also play its part through issues of relativity and deprivation. It may even be possible that these...

The literature on skill formation and human capital development clearly demonstrates that early investment in children is an equitable and efficient policy with large returns in adulthood. Yet little is known about the mechanisms involved in producing these long-term effects. This paper presents...

In this paper we propose a solution to the Bayesian problem of a decision maker who chooses, while observing trial evidence, an optimal stopping time at which either to invest in a newly developed health care technology or abandon research. We show how optimal stopping boundaries can be computed...