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| Ulimwengu, John M.. |
| This paper estimates a stochastic production using household survey data to analyze the relationship between farmers’ health impediments and agricultural production efficiency in Ethiopia. The results show that healthy farmers produce more per unit of inputs, earn more income and supply more labor than farmers affected by sickness. The model results show that production inefficiency increases significantly with the number of days lost to sickness. This finding suggests that investing in the health sector in rural areas will not only improve farmers’ agricultural performance but also increase their income. Policymakers should therefore devise strategies that will maximize the contribution of health investments to agricultural productivity and the overall... |
| Tipo: Journal Article |
Palavras-chave: Health; Productivity; Stochastic frontier; Efficiency; Ethiopia; Health Economics and Policy; Productivity Analysis. |
| Ano: 2009 |
URL: http://purl.umn.edu/56902 |
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| Ulimwengu, John M.; Funes, Jose; Headey, Derek D.; You, Liang. |
| Given its vast land resources and favorable water supply, the Democratic Republic of Congo's (DRC) natural agricultural potential is immense. However, the economic potential of the sector is handicapped by one of the most dilapidated transport systems in the developing world (World Bank, 2006). Road investments are therefore a high priority in the government's investment plans, and those of its major donors. Whilst these are encouraging signs, very little is known about how the existing road network constrains agricultural and rural development, and how these new road investments would address these constraints. To inform this issue the present paper primarily employs GIS-based data to assess the impact of market access on agricultural and rural... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Infrastructure; Market access; Road and river transport; Agricultural production; Poverty.; Agricultural and Food Policy; Crop Production/Industries; Food Security and Poverty; Production Economics. |
| Ano: 2009 |
URL: http://purl.umn.edu/49292 |
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| Ulimwengu, John M.; Guo, Xiaoqi. |
| Spatial accessibility is concerned with the opportunity that an individual at a given location possesses to participate in a particular activity or set of activities. The main objective of this paper is to highlight the shortcomings of traditional accessibility measures and provide some appropriate methodological suggestions for their improvement. Traditional measures derived from cumulative opportunities and gravity models focus on physical proximity leaving out individual and spatial attributes as potential explanatory variable. The improvement through random utility theory relies mainly on Multinomial logit models under Independently and Identically Distributed (IID) and individual response homogeneity assumptions that often do not hold in case of... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Research Methods/ Statistical Methods. |
| Ano: 2004 |
URL: http://purl.umn.edu/20170 |
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