The determinants of health care expenditure: a reexamination

In this article, the determinants of health care expenditure per capita in Spanish regions are analysed. The coexistence of several models concerning the degree of spending power decentralization and financing systems makes Spain a singular case and allows us to draw conclusions relevant for other countries decentralizing their health care systems. Analysing the Spanish case also serves to show a number of pitfalls affecting econometric estimation of the effects of income and demographic structure on health expenditure. Because the reliability of parameter estimates is a key issue in the literature on the determinants of health expenditure, these potential problems should be taken into account when estimating and interpreting results.