A Framework for Analyzing Tariffs and Subsidies in Water Provision to Urban Households in Developing Countries

This paper aims to present a basic conceptual framework for understanding the main practical issues and challenges relating to tariffs and subsidies in the water sector in developing countries. The paper introduces the basic economic notions relevant to the water sector; presents an analytical framework for assessing the need for and evaluating subsidies; and discusses the recent evidence on the features and performance of water tariffs and subsidies in various regions, with a special focus on Africa. The discussion is limited to the provision of drinking water to urban households in developing countries.water, access to water, tariffs, subsidies, urban development

Estimating the Amount of a Global Feed-in Tariff for Renewable Electricity

We present a simple model to estimate the subsidy cost embedded in a global feed-in tariff (GFIT) to simultaneously stimulate electrification and the take-up of renewable energy sources for electricity generation in developing countries. The GFIT would subsidize developing countries for investments they make in generation capacity for renewable electricity up to a threshold level of electricity consumption per capita. Between 2010 and 2025, countries below this threshold strive to bridge the gap by 2025, when subsidies—based on the difference between the costs of renewable technologies and conventional energy sources-end.feed-in tariff, renewable energy, electrification, low-carbon development

Measuring the risk on housing investment in the informal sector: theory and evidence from Pune, India

The authors provide an economic framework to analyze investment in informal housing in developing countries. They consider a simple model of investment in the housing market where investors can choose between two sectors-the formal sector, where physical investment faces no risk of destruction, and the informal sector, where investment in each period is subjected to an exogenous risk of destruction. Construction costs differ between the two sectors. All households are renters. Renters shop for dwelling attributes and do not care about the sector (formal or informal) itself. The model implies that returns on investment, measured by the rent-to-value ration, will be higher in the informal sector. The authors use a survey conducted by the World Bank in Pune, India in 2002. The sample comprises 2,850 households. This survey had the peculiarity of asking the households, regardless of tenure status, questions about the market rent and value of their dwelling. Thus they can calculate individual rates of return for each unit without facing the typical selection bias problems. Comparing the distributions of returns in the informal and formal sectors, the authors obtain the following results: 1) Rates of return are significantly higher in the informal sector, as predicted by the model. 2) These figures imply a perceived risk on housing investment in the informal sector equivalent to an annual destruction rate ranging between 1 and 2 percent. 3) The two distributions of rates of return present highly idiosyncratic components and are not well explained by variables proxying either the strength of informal property rights or lower perceived risks of eviction.Legal Products,Banks&Banking Reform,Non Bank Financial Institutions,Poverty Assessment,Health Economics&Finance

Economic evaluation of housing subsidy systems: a methodology with application to Morocco

Most countries do not use one single type of housing subsidy but combine many of them. The author provides operational criteria that allow evaluation of systems of housing subsidies, both at the individual program level and at the aggregate (country) level. The author examines the public finance assessment criteria used by different authors to analyze subsidy programs and confront them systematically. The author ends up with a map of criteria, which covers the range of topics interesting to policymakers. For each criterion, the author tries to provide empirical measures that can be retrieved from existing programs. The author then provides an aggregation method allowing a synthesis of diagnoses about the quality of the housing subsidies system at the country level. The aggregation technique offers a simple way to visualize the main features of a subsidy system, as well as the effects on the system of reforms or improvements of particular programs. The author applies the methodology to the system prevailing in Morocco in 1995 and 2004. The analysis shows that the most visible subsidies might not have been the most inefficient, nor the most resource consuming for the state. Examination of policy changes since 1995 shows that while the most visible subsidies received nearly all the government's attention, large invisible subsidies remain at the heart of Morocco's housing policy. The framework used here is very general and can be used to compare the Moroccan system with those of similar countries.Environmental Economics&Policies,Public Sector Economics&Finance,Housing Finance,Banks&Banking Reform,Non Bank Financial Institutions,Public Sector Economics&Finance,Banks&Banking Reform,Housing Finance,Non Bank Financial Institutions,Municipal Financial Management

Female Labor Supply and Child Care in France

We use French household data to estimate a structural model of female labor supply and use of paid child care outside the home. Child care costs are found to have little impact on the labor market participation decision of mothers. The model is used to study various policy issues. The influence of the current tax credit on child care expenditures on the mothers’ labor supply is weak. Suppressing the APE (Parental Allowance for the Education) would cause the female participation rate in our sample to rise by 4 points and the proportion of mothers using paid care to rise by 2 points. The responses of women to policy changes are very heterogenous. Macroeconomic changes in female labor supply are equally due to switches between non-participation and participation and switches between working hours by working women.female labor supply, child care, welfare participation, fiscal policy

Some Economic Effects of The No-Interest Loan

A model is estimated using data from INSEEs 1996 Housing survey and 1997 Assets survey to measure the effect of the no-interest loan (NIL) on housing demand (this estimate concerns the effect of the NIL before the recent change in January 2005). The findings show that the no-interest loan definitely boosted home ownership and that this effect concerned mainly the most modest households among the homeowners. Most of these households have purportedly stayed, in the absence of assistance, in the dwelling they occupy until such time as they build the savings necessary for a down payment. However, the NIL suffers from substantial windfall effects. A full 85% of beneficiaries in a given period are reported to have chosen to move to become homeowners regardless of the absence of the no-interest loan. The NIL does necessarily contribute to the general improvement in the quality of new housing put on the market.Housing, Borrowing Constraints, Tenure Choice, Mobility, Homeownership

Female Labor Supply and Child Care in France

We use French household data to estimate a structural model of female labor supply and use of paid child care outside the home. Child care costs are found to have little impact on the labor market participation decision of mothers. The model is used to study various policy issues. The influence of the current tax credit on child care expenditures on the mothers' labor supply is weak. Suppressing the APE (Parental Allowance for the Education) would cause the female participation rate in our sample to rise by 4 points and the proportion of mothers using paid care to rise by 2 points. The responses of women to policy changes are very heterogenous. Macroeconomic changes in female labor supply are equally due to switches between non-participation and participation and switches between working hours by working women

The Development of A Human Systems Simulation Laboratory: Strategic Direction

The Human System Simulation Laboratory (HSSL) at the Idaho National Laboratory is one of few facilities of its kind that allows human factors researchers to evaluate various aspects of human performance and human system interaction for proposed reactor designs and upgrades. A basic system architecture, physical configuration and simulation capability were established to enable human factors researchers to support multiple, simultaneous simulations and also different power plant technologies. Although still evolving in terms of its technical and functional architecture, the HSSL is already proving its worth in supporting current and future nuclear industry needs for light water reactor sustainability and small modular reactors. The evolution of the HSSL is focused on continual physical and functional refinement to make it a fully equipped, reconfigurable facility where advanced research, testing and validation studies can be conducted on a wider range of reactor technologies. This requires the implementation of additional plant models to produce empirical research data on human performance with emerging human-system interaction technologies. Additional beneficiaries of this information include system designers and HRA practitioners. To ensure that results of control room crew studies will be generalizable to the existing and evolving fleet of US reactors, future expansion of the HSSL may also include other SMR plant models, plant-specific simulators and a generic plant model aligned to the current generation of pressurized water reactors (PWRs) and future advanced reactor designs. Collaboration with industry partners is also proving to be a vital component of the facility as this helps to establish a formal basis for current and future human performance experiments to support nuclear industry objectives. A long-range Program Plan has been developed for the HSSL to ensure that the facility will support not only the Department of Energy’s Light Water Reactor Sustainability Program, but also to provide human factors guidance for all future developments of the nuclear industry

Experimental and theoretical study of the elliptic instability in a rotating stratified flow

The combined effects of Coriolis force and buoyancy effects on the dynamics of a weakly elliptical bounded vortex are treated theoretically as well as experimentally. As predicted theoretically, stratification and rotation have antagonist contributions to the stability of an elliptical vortex. Thus if the stratification is strong enough (Nb>Omega_c, Nb and Omega_c being respectively the Brunt-Väisälä frequency and the rotation rate of the flow in a frame rotating with the elliptical deformation at angular velocity Omega_t), we have observed that only anticyclones (such that |Wa|<Omega_c with Wa=2(Omega_c+Omega_t)) are unstable, whereas the cyclones are always stable. In addition if the stratification is weak, instability areas over change. These instability thresholds found theoretically have been observed experimentally with a good accuracy and the measured growth rate are in a good agreement with those predicted by a linear stability analysis in the limit of small deformation

Human reliability analysis for computerized procedures

This paper provides a characterization of human reliability analysis (HRA) issues for computerized procedures in nuclear power plant control rooms. It is beyond the scope of this paper to propose a new HRA approach or to recommend specific methods or refinements to those methods. Rather, this paper provides a review of HRA as applied to traditional paper-based procedures, followed by a discussion of what specific factors should additionally be considered in HRAs for computerized procedures. Performance shaping factors and failure modes unique to computerized procedures are highlighted. Since there is no definitive guide to HRA for paper-based procedures, this paper also serves to clarify the existing guidance on paper-based procedures before delving into the unique aspects of computerized procedures