Complete Description:Abstract: Financial decisions are compelled and constrained by non-financial factors. These include personality characteristics of individuals as well as of the social environment in which decisions are made. This study provides an overview of behavioral theories that have sought to explain how non-financial factors influence financial behavior: developmental psychology, culture of poverty, behavioral economics, crystallized and fluid intelligence, and neuro-brain research. Our interest is in what these theories imply about the behavior of vulnerable, particularly low-income groups. This literature reviewed indicates the importance of emotions and feeling in decision making; these must be considered in developing and evaluating financial literacy education programs.