Concerns about consumers' ability to manage their finances have triggered a range of proposals, including interventions aimed at elementary school students. The goal of these approaches is to improve lifelong economic decision making, but the evidence supporting their efficacy is thin. In this article, the authors discuss the trend toward elementary financial education and propose a framework for developing evidence-based programs. They emphasize the need for understanding the underlying mechanisms that facilitate the translation of student knowledge into the ability to make sound economic decisions over the life course. The framework illustrates the importance of articulating the intended mechanisms and effects of education programs. This focus on mechanisms will not only facilitate the evaluation of individual programs, but also the synthesis of evidence across interventions.Over the last decade, researchers have paid increasing attention to individuals' financial literacy and to the extent to which it is correlated with financial status or behavior (Lusardi and Mitchell 2011a). Although problematic financial behaviors are observed in adulthood (see Campbell 2006 for a discussion), a frequent conclusion in the literature is that involving more personal finance instruction in the educational system, including the postsecondary (Chen and Volpe 1998), secondary Lusardi, Mitchell, and Curto 2010), and more recently, elementary school (Suiter and Meszaros 2005) levels, would improve the financial behaviors of adults. This view is shared by policymakers (e.g., Greenspan J. Michael Collins