Murray and Lopez holed up in the barn in Maine, compiling data in marathon sessions, 6 a.m. to midnight, in order to refine their calculations for final submission. The World Development Report, subtitled “Investing in Health,” was published in June 1993. Woven throughout were burden-of-disease numbers, with the new concept of DALYs, disability-adjusted life years, introduced on page one. In eighteen months, with a budget of approximately $100,000, Murray, Lopez, and their collaborators had begun to transform our understanding of life and deat