From a deterrence perspective, private enforcement of consumer law can be insufficient for several reasons. Individual consumers may find it too costly to start a lawsuit (‘rational apathy’) or they may not even know that an infringement has occurred (‘information asymmetry’). If public enforcement is not available, or if the budget of public authorities is limited and used for other purposes, the problem of under-enforcement will persist. Collective actions may be able to mitigate these problems. If many consumers can join their claims, the costs per claim decrease so that the rational apathy problem might be overcome. If consumer associations have standing, they might be able to acquire better information regarding infringements than individual consumers are able to do. However, collective actions pose problems of their own. The leading plaintiff or the organisation issuing the collective action could try to advance its own interests, rather than furthering overall consumer interests. Moreover, a large-scale lawsuit might harm the reputation of the defendant and thus create the possibility of ‘frivolous suits’. The paper discusses a number of possibilities to overcome these problems. Ultimately, private and public enforcement will need to co-exist, since collective actions are not a perfect instrument to achieve optimal deterrence.

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Keywords collective actions, consumer law, international law, mass claims
Persistent URL
Series Erasmus Law Review
Journal Erasmus Law Review
van den Bergh, R.J, & Visscher, L.T. (2008). The preventive function of collective actions for damages inconsumer law. Erasmus Law Review, 1(2), 6–30. Retrieved from