Sadness interfering with work: depression and labor supply in developing countries
If economists view mental health as one component of human capital, as we typically view physical health, then it’s a natural step to the corollary view that good mental health leads to productivity enhancing behaviors such as increased labor supply, greater effort, enhanced concentration, and so on. Given its productive role perhaps mental health, often neglected in the policy realm, deserves more attention. Unfortunately there are precious few studies till date that actually establish such a link between psychological health and productivity.

For decades, the leading causes of mortality have differed between low income countries and high income countries. Those who have worked their careers in health and development probably never thought they would see the day when maternal/child health and communicable diseases would not be the leading health burden in many low income countries.