 However, at a more general level there is an apparent need on the part of philosophers to conceptualize the notion of an anti-corruption system or, more broadly, an integrity system for institutions (Klitgaard 1988; Pope 1997; Anechiarico &amp; Jacobs 1998; Klitgaard et al. 2000; Preston &amp; Sampford 2002; Baker 2005; Miller 2017). An integrity system is an institutional arrangement the purpose of which is to promote ethical attitudes and behavior and, crucially, to prevent or, at least, reduce institutional corruption. For instance, an integrity system for a police organization might consist of a set of laws and regulations, an internal affairs department comprised of corruption investigators, an external oversight body, professional reporting mechanisms, an enforceable code of ethics, a complaints and discipline process, and so on. The contribution of philosophers to integrity systems has been threefold. Firstly, they have offered synoptic or “birds-eye” views of the architecture of such systems and in so doing determined whether they are fit for normative institutional purpose. Naturally, this work presupposes theories of the normative institutional purposes of the institutions in question (Lessig 2011; Thompson 1995). Secondly, they have addressed a variety of ethical issues that have arisen in the design and implementation of integrity systems and their various institutional components. Consider, for instance, the range of ethical issues that arise in relation to anti-corruption systems for police organizations, e.g., entrapment, privacy/surveillance (Miller 2016). Thirdly, they have identified the underlying causal and/or rational basis of the corruption and, in light of this, designed appropriate anti-corruption measures. (Pogge 2002 [2008]: Chapter 6; Lessig 2011); van den Hoven, Miller, &amp; Pogge 2017).  An important set of structural problems facilitating corruption are collective action problems, e.g., regulatory arbitrage in the global financial system and tax havens (Obermayer &amp; Obermaier 2016; Rothstein &amp; Varraich 2017). One kind of solution proposed is that of an enforceable cooperative scheme at the international level (Eatwell &amp; Taylor 2000).