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ASIRPA is an original and comprehensive approach for assessing the socioeconomic impact of PROs through case studies. The cases are theory-based, selected to characterize the diversity of the broader impacts, and standardized so as to allow the scaling-up of the analysis of impact to the level of the organization. ASIRPA is founded on well-tried tools and the added-value of the approach lies in the adaptation and combination of these tools to design a comprehensive approach, which has been tested in a real situation and proven to be robust, credible, and implementable.

In this paper, we analyze the insect resistance management (IRM) plan put in place by the US Environmental Protection Agency (EPA) to delay the evolution of resistance to Bt corn in natural populations of the European corn borer, Ostrinia nubilalis Hübner. This IRM plan is the most impressive mandatory IRM system ever developed. It forms a coherent whole and includes mandatory refuges, actions to increase growers' compliance and a program for monitoring the evolution of resistance. However, our analysis suggests that two components of this IRM plan are not entirely satisfactory: growers' compliance and monitoring of the evolution of resistance. Moreover, the implementation of these two components of IRM has been required of the registrants, whose incentives for IRM are probably lower than the social optimum. Our analysis suggests that alternatives to the IRM plan currently in place could improve these two components.