Robert Biswas-Diener (born July 27, 1972) is a positive psychologist, author and instructor at Portland State University. Biswas-Diener's mother is Carol Diener and his father is Ed Diener, both psychologists. Biswas-Diener's research focuses on income and happiness, culture and happiness, and positive psychology. Biswas-Diener's research has led him to areas such as India, Greenland, Israel, Kenya, and Spain, and he has been called the "Indiana Jones of positive psychology". He obtained his PhD in 2009 on "Material wealth and subjective well-being" from the University of Tromsø. Biswas-Diener is interested in looking into the difference between a procrastinator and what he calls an "incubator". Biswas-Diener is an author of books and articles and sits on the editorial boards of the Journal of Happiness Studies and Journal of Positive Psychology. Biswas-Diener also co-founded The Strengths Project, a charity whose mission is to "help underprivileged individuals and groups realise their strengths to enhance quality of life and build on their life circumstances." Happiness The psychological study of happiness is referred to as subjective well-being. Researchers are principally interested in the measurement, causes and consequences of being happy. Biswas-Diener has contributed to the study of happiness principally through his investigations of the well-being of exotic groups traditionally overlooked by psychologists. These include the Amish, the Maasai and homeless people. Positive diagnosis Positive psychologists have argued that there is a need create a taxonomy of “what goes right with people” as well as “what goes wrong with people.” Previous attempts have focused on uni-dimensional approaches such as identify individual strengths. Biswas-Diener has expanded on these approaches by creating a “multi-axial” approach to comprehensive diagnosis similar to the DSM Multi-axial Approach used in clinical psychology. His positive diagnosis model includes: Axis 1: Capacities (strengths and interests) Axis 2: Well-being (life satisfaction and psychological well-being) Axis 3: Future Orientation (hope and optimism) Axis 4: Situational Benefactors Axis 5: Values Incubators and procrastinators Many researchers have examined the phenomenon of procrastination. Some researchers have noted that procrastination can be adaptive. Biswas-Diener has examined the work styles of people who knowingly procrastinate and allow mounting anxiety to propel them to high performance, albeit “at the last minute.” He has identified this work style as “incubator.” Strengths A major area of interest within positive psychology theory and research has been on the topic of strengths. Strengths are disproportionately represented among publications in the Journal of Positive Psychology. Biswas-Diener and his