In aging economy, when number of the elderly grow the age structure of the population differ. Therefore, age-based matters have a direct impact on population preferences. The old individuals don’t profit from long-term public policies. They have a preference for public investments which are more helpful in the short term, while the young can prefer policies giving better effects over a longer period. This is the case of the investments on health status, such as health-care expenditures and environmental maintenance. Both of them improve health situations: the valuable effect of health expenditure is evident and the positive role of environmental quality on health is well acknowledged as well
