This thesis investigates the importance of health as a primary policy target. In particular, it focuses on how health can improve investment and in turn economic growth; this probes the question of what determines improvements in health. The first major chapter (chapter 2) introduces information about the benefit of using life expectancy at age 10 rather than at birth for investment decisions. This emphasizes how health, at an age later than birth, is important for both educational and physical capital investment due to the elimination of infant and early childhood fatalities. The second major chapter (chapter 3) looks into the public and private financing of health expenditure. The chapter examines whether the financing of health care has ...