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| Linz, Teresa; Tsegai, Daniel W.. |
| This paper seeks to determine water demand of the mining sector in the Middle Olifants sub-basin of South Africa. Despite the growing economic importance of mining in the area, only little is known about its water demand and the role of water in the mines´ extraction process. By means of econometric estimation water price elasticities as well as substitution possibilities between water and other inputs are derived to analyze the response of mines to changes in water tariffs. Using primary data, a translog cost function is estimated for five mines operating in the area. Cost share equations of each input are specified and estimated using Seemingly Unrelated Regression (SUR) method. The mean cost share of water for all five mines, with around 1%, is... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Environmental Economics and Policy; Resource /Energy Economics and Policy. |
| Ano: 2009 |
URL: http://purl.umn.edu/49927 |
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| Kloos, Julia; Tsegai, Daniel W.. |
| Using household survey data, this study investigates preferences for domestic water services in the Middle Olifants sub-basin of South Africa. Water is a relative scarce resource in South Africa that is distributed unevenly both geographically and seasonally as well as socio-politically. For a water management addressing the policy objectives of efficiency in use, equity in access and benefits and long-term sustainability, economic valuation of the different water uses is required. In order to detect households' preferences, a choice experiment was conducted. Results suggested the presence of preference heterogeneity and therefore, a latent class model was applied, dividing households into homogeneous groups according to their preferences. Four distinct... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Environmental Economics and Policy. |
| Ano: 2009 |
URL: http://purl.umn.edu/49970 |
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| Walter, Teresa; Kloos, Julia; Tsegai, Daniel W.. |
| With the political changes in South Africa in the early 1990s, the South African government introduced a reform process in the entire water sector with the goal of a more enhanced and equitable water management system. This paper analyzes existing water allocation situations and applies a nonlinear optimization model to investigate the optimal intra- and inter-regional allocations in the Middle Olifants sub-basin of South Africa. Results show higher benefit from inter-regional water allocation. Reducing water supply levels to conform to the sustainable water supply policy, it can be shown that although water supply is reduced by approximately 50%, total benefits from water are only reduced by 5% and 11% for inter- and intra-regional allocation regimes... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Water allocation; IWRM; Olifants basin; South Africa; Africa; Resource /Energy Economics and Policy. |
| Ano: 2010 |
URL: http://purl.umn.edu/97035 |
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| Liu, Dan; Tsegai, Daniel W.. |
| The New Cooperative Medical Scheme (NCMS) program was implemented in response to ‘illness-led poverty’ and poor state of healthcare in rural China. Supported by government subsidy, more and more poor rural households are now enrolled in the NCMS. This paper investigates the impact of the NCMS program on improving health care utilization and reducing medical expenditure with a specific focus on the endeavors to unravel the heterogeneous effects of the program for the different regions and income groups. We utilize the China Health and Nutrition Survey data (CHNS) to provide prolific cross section and longitudinal information. A total sample of 6,293 individuals and 2,058 households are included in the analysis. Propensity score matching method and bounding... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Rural China; Health insurance; Impact evaluation; Propensity score matching; Health Economics and Policy. |
| Ano: 2011 |
URL: http://purl.umn.edu/116746 |
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| Lodhi, Abdul Salam; Tsegai, Daniel W.; Gerber, Nicolas. |
| Using data from Pakistan, this study analyzed the effect of various individual, household, and community level characteristics on the probability that children engage in different activities. According to the existing trend of their prevalence, we considered five child’s activities, namely: secular schooling; religious education; child labor; a combination of child labor and secular schooling; and inactivity (including leisure). Data was collected through field surveys conducted in over 40 villages in four Pakistani provinces: Balochistan, Khyber Paktunkhwa, Punjab, and Sind. A total of 963 households were interviewed on the activities of 2,496 children. Multinomial Probit model was used for the analyses. Results indicated that parental perception had... |
| Tipo: Working Paper |
Palavras-chave: Child productivity; Child’s activities; Parental perception; Gender; Community/Rural/Urban Development; Labor and Human Capital; Teaching/Communication/Extension/Profession. |
| Ano: 2011 |
URL: http://purl.umn.edu/119110 |
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