The number of people with dementia is estimated to be 35 million worldwide, 800,000 of whom are in the UK, and with an aging population this figure is set to increase. This book provides an overview of the principles of health economics and its application to dementia research. Chapters present four evocative case studies surrounding the economic evaluations of interventions for people with dementia, in a range of settings and contexts. Contributors discuss their personal experiences of conducting applied dementia research, and consider the challenges and implications for the health economic analysis. The international implications of dementia care financing and delivery are also explored, before a future agenda for the health economic analysis of dementia research is set out.