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Deforestation in Sub- Sahara Africa AgEcon
Diarrassouba, Malick; Boubacar, Inoussa.
According to FAO (2005) about 13 million hectares of the word’s forest are lost due to deforestation. Naoto (2006) found Africa to lead the list of countries with the highest rate of deforestation. This worrisome situation is further aggravated by the possible negative impacts of climate change due to an increase in the mean global temperature. Evidence supports that Africa is most likely to suffer the most the devastating impacts of natural calamities such as droughts and floods. This paper sought to evaluate the causes of deforestation in 27 Sub-Saharan African (SSA) countries. Our model uses annual data spanning from 1990 to 2004. Trade and urban population tend to be associated with a decline in deforestation. On the other hand, we found strong...
Tipo: Conference Paper or Presentation Palavras-chave: Deforestation; Sub-Saharan Africa; Development.; International Development; Q23; N 57.
Ano: 2009 URL: http://purl.umn.edu/46799
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Agricultural Productivity, Drought, and Economic Growth in Sahel AgEcon
Boubacar, Inoussa.
A standardized precipitation index is used in a regression analysis to quantify the impact of climate change on agricultural productivity in Sahel. I first estimate a Malmquist productivity index and its efficiency and technical change components. I further assess the statistical significance of the indices by estimating some confidence intervals via a bootstrap method. In the second stage of the analysis, I use a Probit model to estimate the extent to which climate variables affect agricultural productivity. It appears that agricultural performance has been disastrous in many Sahelian countries from 1970 to 2000. Using a comparable cross-country measure of drought, I provide evidence that precipitation variability is constraining not only Sahel’s...
Tipo: Conference Paper or Presentation Palavras-chave: Productivity; Agriculture; Sahel; International Development; Production Economics; O13; O55; Q54.
Ano: 2010 URL: http://purl.umn.edu/56321
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The Effects of Drought on Crop Yields and Yield Variability in Sahel AgEcon
Boubacar, Inoussa.
Drought is widespread in Sahel, and its persistent occurrence has caused substantial damages to the agricultural sector. The severity of drought and the related damages to the agricultural sector are expected to increase due to global warming. In this paper, I examine the economic impacts of drought on Sahel agriculture. The maximum likelihood estimators of the Just-Pope stochastic production function indicate that the direction of the effects of climate variables is similar across crops, but their magnitudes differ. Specifically, drought as measured by a 6-month standardized precipitation index, poor rainfall spread, and degree-days have adverse effects on crop yields. The results are robust to alternative estimation methods.
Tipo: Conference Paper or Presentation Palavras-chave: Crop yields; Drought; Stochastic production model; Sahel; Crop Production/Industries; Environmental Economics and Policy; International Development; O13; O55; Q54.
Ano: 2010 URL: http://purl.umn.edu/56322
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