The RAND Future Elderly Model [9] came the closest, by testing the potential future impact of the introduction of new technologies on both population health status and direct health care expenditures. The first is known as the “dynamic equilibrium” or “healthy ageing” hypothesis. It assumes that the morbidity period prior to death remains unchanged as life expectancy increases, so that each year gained in life expectancy corresponds to an equal increase in years of healthy life. The second is a pessimistic view called “expansion of morbidity” where by increases in life expectancy yield a longer-time spent with ill-health and reduced “quality” of life.