Kwaw S. Andam

Protected areas reduced poverty in Costa Rica and Thailand

Paul J. Ferraro, Andrew Healy, Katharine R. E. Sims, 2010, Proceedings of the National Academy of Sciences.

The effects of protected area systems on ecosystem restoration: a quasi‐experimental design to estimate the impact of Costa Rica's protected area system on forest regrowth

Paul J. Ferraro, P. Ferraro, K. Andam, 2013 .