Purchasing Population Health: Paying for Results August 30, 2015 | In his 1997 book, David Kindig outlines a plan to establish incentives to direct health spending in ways that are proven to increase health outcomes. Written after the failed federal health reform of 1994, this book continues to have insightful analysis of the importance of holding health spending accountable to health outcomes. View the Resource Kindig, David. Purchasing Population Health. The University of Michigan Press, 1997. Print.