Behavioural sciences and "nudging" are of growing importance and impact in public policy. Results from behavioural, empirical research allow for an empirically-informed, testable, and behaviourally based approach to policy making. Frameworks originating from research as well as policy experiences form a ground for future implementations. This paper discusses applications of "nudging" in the field of economic consumer policy. We present an overview of frameworks and classifications as well as an extensive description of main actors and institutions and their involvement with behavioural sciences. The study outlines the possibilities for application in several consumer policy areas. We examine a collection of nudge cases with a focus on economic consumer protection. The potential for an effective use of behavioural sciences and empirical research, as well as its limits, are outlined. We focus on three areas: financial issues, market and legal issues as well as energy and resources.