Abstract
This chapter analyzes the impact of climate change on net revenues of five major food crops in Ghanaian using Structural Ricardian method. First, a multinomial logit regression is used to evaluate crop selection among food crop farmers. The results of this regression show that warming is likely to prompt farmers to switch from the cultivation of cassava and maize to the planting of sorghum, rice and yam. Reduced rainfall is expected to decrease the selection of maize among farmers, and increase the planting of other food crops (cassava, sorghum, rice and yam). Taking into account crop selection bias, warming increases revenues of cassava and sorghum whiles additional rainfall increases sorghum revenue and decreases revenues of cassava and maize. As a long-term phenomenon, climate change is projected to reduce expected revenue from cassava and maize, but the losses in revenue can be minimized through adaptation by switching among crops. Climate change is expected to positive impact on revenues of sorghum and yam, which is expected to be maximized through crop switching (climate change adaptation). This study suggests public investment in research on high-yielding, heat-tolerant and flood-prone varieties of the above mentioned food crops in order to make crop switching a more beneficial exercise for farmers.
Parts of this chapter is also published in International Development and Cooperation 19(4):5–16.
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Notes
- 1.
There are yam festivals for many ethnic groups in Ghana. Most traditional Ghanaian dishes are prepared from cassava and maize in many locations. In the northern part of Ghana, sorghum is used in preparation of traditional dishes during funerals.
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Issahaku, Z.A., Maharjan, K.L. (2014). Climate Change Impact on Revenue of Major Food Crops in Ghana: Structural Ricardian Cross-Sectional Analysis. In: Maharjan, K. (eds) Communities and Livelihood Strategies in Developing Countries. Springer, Tokyo. https://doi.org/10.1007/978-4-431-54774-7_2
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