The first reason for this study is that a gap appears to exist in the available theories on corruption; very little research is available on corruption by a network, nor does the network theory thoroughly discuss the risks or pitfalls of networks. The second reason for this study is the observation that policies and investigations appear to be limited in dealing with corruption in network-like structures, while at the same time international and European organisations refer to ‘trading in influence’, political and high-profile corruption and the need to eradicate these forms of corruption. The descriptions of both trading in influence and ‘political corruption’ are such that they refer to a web, circle or network in which corruption occurs. The current literature and research on corruption in network-like structures is not extensive, nor do literature and research on networks extensively discuss the pitfalls of networks or how such a collective can become corrupt. This study seeks to bridge both themes, thereby learning from the day-to-day reality of large corruption cases which are difficult to investigate, and comparing them to what is described in the existing bodies of literature on corruption and networks. Thus, understanding network corruption is relevant to prevent, detect and address corruption in our modern society. It will help create awareness and understanding of when social capital becomes corrupted. In this study I consider the structure of the network and the responsibility in these networks in real-life cases: what consequences this has in terms of how the conduct should be assessed; what it means when corruption is a collective behaviour; and whether the behaviour of individuals can be assessed independently of the network. We need to understand which norms are laid down in the anti-corruption policies and models and compare them with the norms upheld in social networks, to explore whether it is possible to distinguish networks from network corruption. In particular, the various roles that individuals take on in such networks needs consideration. The three case studies (the FIFA case, the News of the World case and the Roermond case) concerned serious misconduct by a given set of persons having some form of loose association, but sometimes with little individual behaviour being criminal. In this study the link between networks and corruption is explored by means of the following central question:
In what way and to what extent is corruption linked to the functioning of social networks, and what does this entail for our knowledge of corruption and networks and the policies to eradicate corruption?