Agroforestry Programs in the Colombian Amazon: Selection, Treatment and Exposure Effects on Deforestation

Arnab Bhattacharjee, Claudia Aravena, Natalia Castillo, Marco Ehrlich, Nadia Taou and Thomas Wagner

No 537, National Institute of Economic and Social Research (NIESR) Discussion Papers from National Institute of Economic and Social Research

Abstract: Tropical rainforests play a critical role in the fight against climate change. However, record high levels of deforestation have been experienced in the Amazon which, together with land use change, has led to loss of biodiversity and sustainable livelihoods. Agroforestry and silvo-pastoral conservation programs are particularly promising in this context because of their potential to simultaneously offer sustainable forest cover and support local livelihoods. Together with sustainable animal husbandry, they are critical in addressing the twin challenges of food security and climate change. But empirical estimates of the effectiveness of planned agroforestry on deforestation are largely absent. We study the effects of an innovative and ambitious agroforestry program, part of the UN REDD initiative in Colombia, upon deforestation in the Amazon. Enrolment on the program is not random but based on matching and choice. Achieving reduced deforestation through planned agroforestry is challenging. When selected farms undergo 'treatment' under the program, they initially experience reduction in secondary vegetation in the medium run (5-20 years). Using a quasi-experimental difference-in-differences approach, and both traditional and new econometric methods, we estimate treatment, exposure and selection effects. The findings emphasize that agroforestry programs can stall deforestation and even promote permanent forest cover. However, this requires continuous upscaling with continued and very rapid expansion of the program, entailing substantial costs to society but also significant return.

Keywords: Agroforestry programs; Selection; Treatment and Exposure effects; Difference-in-differences; Colombian Amazon; Deforestation (search for similar items in EconPapers)
JEL-codes: C21 C23 C55 Q15 Q23 Q56 (search for similar items in EconPapers)
Date: 2022-05
New Economics Papers: this item is included in nep-agr, nep-dev and nep-env
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