 Preventive institutional mechanisms for combating corruption can be divided into four categories. Mechanisms designed to reduce the motivation to engage in corruption, e.g., ethics education programs; mechanisms to reduce the capacity of those motivated to engage in corruption, e.g., legislation to downsize oligopolies to prevent cartels (Rose-Ackerman 1999), exploitation of the lack of trust between corruptors (Lambsdorff 2007), democratization and the separation of powers (“power corrupts” (Acton 1887 [1948: 364]) to reign in powerful, corrupt governments (Johnston 2014); mechanisms to eliminate or reduce the opportunity to engage in corruption, e.g., conflict of interest provisions; mechanisms to expose corrupt behavior, e.g., oversight bodies, media organizations (Pope 1997; Spence et al. 2011).