Technological innovation and dispersion: Environmental benefits and the adoption of improved biomass cookstoves in Tigrai, northern Ethiopia

This paper empirically analyzes adoption and fuel savings efficiency of improved biomass cookstove technology using survey data from a cross-section of 200 farm households from the highlands of Tigrai, northern Ethiopia. Results indicate that these farm households are willing to adopt improved biomass cookstove innovations if this leads to economic savings. Moreover, results suggest significant positive environmental externalities. On a per household basis, we found that adopters collect about 70 kg less wood and about 20 kg less dung each month. The adoption of improved biomass cookstoves reduces harvest pressure on local forest stands: assuming an average of 120 metric tons of biomass per ha, we find the potential reduction in deforestation amounts to some 1400 ha per year – an important saving. Further, the reduced use of dung as a fuel has a positive impact on soil productivity in agriculture.