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2009 - International Marine Conservation Congress Words: 252 words || 
1. Clement, Thierry., Jean Roger, Mercier. and Tous, Philippe. "Establishing the Internal Economic Rate of Return (IERR) of Three MPAs - Method, Results, Uncertainties and Lessons Learned" Paper presented at the annual meeting of the International Marine Conservation Congress, George Madison University, Fairfax, Virginia, May 20, 2009 <Not Available>. 2019-12-09 <>
Publication Type: Speed Presentation
Review Method: Peer Reviewed
Abstract: Three MPAs programs that had received funding in the early 2000's from the French GEF, were evaluated and the IERRs were established using a combination of direct surveys, interviews and literature review. The same method was used throughout the three case studies and it relies on the estimate of the flows of investment and operating costs as well as the benefits (based on the Total Economic Value - TEV -) generated by the creation and development of the programs. The latter include Mnazy Bay in Tanzania, four MPAs in Senegal, including Bamboung in the Siné Saloum and the Soufriere MPA in Saint Lucia (West Indies). We present the assumptions made, the outcome and the lessons learned. Among the latter, we highlight the fundamental importance of good baseline data as well as of sound monitoring, frequent and relying on a solid scientific basis and engaged beneficiary participation. The IERRs calculated show important variations among the three case studies, with the main explanatory factors being the magnitude and diversity of the benefits (fisheries, agriculture, biodiversity, tourism, increased technical capacity,...) as well as the amounts of management costs, themselves highly dependent on the institutional setup, resorting to large international operators carrying with it the risks of higher costs than with national NGOs. The establishment of the IERRs was interesting, but so was the approach taken and the many uncertainties that surround the production of a single quantitative indicator in the face of the complex and fragile development of AMPs in poor countries.

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