The purpose of this paper is to identify the role of health status in productivity. In order to check the existence of reverse causation suggested by previous studies the Hausman test was carried out and different sets of instruments were used as exogenous determinants of health expenditure. Variables related to health expenditure were used to estimate the elasticity and these produced accepted results. Evidence was obtained to support the positive effect of health on economic growth.

The purpose of this paper is to analyze the role health investment plays in human capital accumulation, and in so doing to demonstrate that education is not the only factor affecting the performance of the labor force and productivity. Estimates are made for the OECD countries for the period 1960-90. Investment in health contributes in a significant way to explaining variations in output through human capital, even in those countries which presumably have high levels of health.

Since the mid-1990s, Spain has started to receive a great number of migrant populations. The migration process can have a significantly negative impact on mental health of immigrant population and, consequently, generate implications for the delivery of mental health services. The aim of this article is to provide empirical evidence to demonstrate that the mental health of immigrants in Spain deteriorates the longer they are resident in the country. An empirical approach to this relationship is carried out with data from the National Survey of Health of Spain 2011-2012 and poisson and negative binomial models. Results show that immigrants who reside <10 years in Spain appear to be in a better state of mental health than that observed for the national population. Studying health disparities in the foreign population and its evolution are relevant to ensure the population's access to health services and care. The need for further research is especially true in the case of the immigrant population's mental health in Spain because there is scant evidence available on their situation.

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