Jeri Lacks Whye, one of Henrietta Lacks’s grandchildren, with her two daughters, Jabrea (9) left, and Aiyana, (12). Photograph: Monica Lopossay/New York Times

Henrietta Lacks was only 31 when she died of cervical cancer in 1951 in a Baltimore hospital. Not long before her death, doctors removed some of her t(...)

Growth of output per head determines living standards. Innovation determines the growth of output per head. But what determines innovation?Conventiona(...)