This paper presents a framework to determine optimal resource allocation over time for the production of a good by heterogeneous producers who generate a stock externality. We analyze the optimal intertemporal and quality-specific combination of abatement strategies at the source given by a...

This paper analyzes and compares two alternative policies of determining the service life and replacement demand for vintage equipment under embodied technological change. The policies are the infinite-horizon replacement and the transitory replacement ending with scrapping. The corresponding...

This article develops a theoretical framework to examine the relationship between land tenure agreements and households’ investment in land improvement and conservation measures. It then analyzes this relationship with a multivariate probit model based on a survey data from a sample of 560...

This paper examines joint adoption of safer irrigation technologies under uncertainty. The new irrigation technologies introduced in sub-Saharan Africa aim at ensuring safer vegetable production when untreated wastewater is used as irrigation water. The main hypothesis tested is that profit and...

This study uses cross-sectional data of 342 small-scale lowland rice farmers in Northern Region of Ghana to analyze the impact of the adoption decision of bund construction and seed dibbling on net returns, input demand and output supply. Matching was conducted based on Mahalanobis distance...

Whereas water is an important input in rice production, China faces severe problems with increasing demand for water and limited water resources. In conventional paddy production, one of the most important irrigated crops, a significant amount of irrigation water is lost due to percolation and...

This study focuses on public investments and policy reforms for leveraging growth spillovers at the Africaregional level. It reviews first the theory and evidence of knowledge and growth spillovers generally andsecond the evidence in the African context. Given the limited and scattered evidence...