International Food Policy Research Institute (IFPRI), and Department of Agricultural Economics and Agribusiness, University of Ghana, Legon, Accra, respectively. We thank Jan Bojo, the World Bank, and Sashidhara Kolavalli and Luke Abatania, IFPRI, for their helpful comments on an early draft of this paper. The study was conducted as part of IFPRI's Ghana Strategy Support Program with financial support of the United States Agency for International Development (USAID).
Poverty Implications of Agricultural Land Degradation in Ghana: An Economy-wide, Multimarket Model Assessment
Version of Record online: 7 SEP 2011
© 2011 The Authors. African Development Review © 2011 African Development Bank
African Development Review
Volume 23, Issue 3, pages 263–275, September / Septembre 2011
How to Cite
Diao, X. and Sarpong, D. B. (2011), Poverty Implications of Agricultural Land Degradation in Ghana: An Economy-wide, Multimarket Model Assessment. African Development Review, 23: 263–275. doi: 10.1111/j.1467-8268.2011.00285.x
- Issue online: 7 SEP 2011
- Version of Record online: 7 SEP 2011
Abstract: An economy-wide, multimarket model is applied for Ghana and is used to assess the aggregate economic cost of agricultural soil erosion. To fill a gap in the literature regarding economic cost analysis of soil erosion, this paper also analyzes the poverty implications of land degradation. The model predicts that land degradation reduces agricultural income in Ghana by a total of US$4.2 billion over the period 2006–2015 and the national poverty rate will increase in 2015 by 5.4 percentage points. Moreover, soil loss causes a slowing of poverty reduction over time in the three northern regions, which currently have the highest poverty rates in the country. Sustainable land management (SLM) is the key to reducing agricultural soil loss. The present findings indicate that through the adoption of conventional SLM practices, the declining trend in land productivity can be reversed, and that use of a combination of conventional and modern SLM practices would generate an aggregate economic benefit of US$6.4 billion over the period 2006–2015. SLM practices would therefore substantially reduce poverty in Ghana, particularly in the three northern regions.