I am a behavioral economist. My primary focus is the study of altruism -- in short, the intention to benefit others -- including its economic, behavioral, and psychological aspects. Currently, I am working on developing and testing models of individual altruistic decision-making in various contexts, and in interactions between individuals, such as potential donors, individual recipients, charitable organizations, and governments. My research combines economic theory, experiments, and quantitative data analyses. My aim is to promote the growth of personal and collective altruism by revealing the nature and dynamics of human generosity and through the use of evidence-based individual, social, and institutional interventions.