A significant body of literature examines the influence of financial confidence, overconfidence, and/or underconfidence on a variety of financial behaviours and outcomes. Yet researchers have used a host of different methodologies to produce this work. This paper describes the results of reviewing 66 articles and reports the focus concepts (confidence, over/underconfidence), the operational definitions, the data used, and the various ways in which the key variables were constructed in existing research. It concludes by identifying decision points for scholars conducting future research in this area.
