Valuing the water supply: ecosystem-based potable water supply management for the Legedadie-Dire catchments, Central Ethiopia

Abstract Background There is a substantial interest in the values that consumers place on drinking water quality and supply. Financial resources are crucial to improving the urban potable water supply in developing countries that are characterized by low-cost recovery rates and a high and rapidly growing demand for more reliable services. This study examined households’ willingness to pay (WTP) for the improvement of water services by identifying their water choice decisions and the mode of water supply that they prefer the water supply authority to use among several alternative water supply options. Stated-preference data were collected from 322 randomly selected households in Addis Ababa, who were presented with three sets of choices (three alternative bundle choices, including the reference scenario). The data were analyzed using the mixed logit WTP space model. Three approaches to modeling the distribution of WTP (fixed, uncorrelated, and correlated) using mixed logit WTP space models were compared. Results Three-quarters of the households agreed to contribute money toward ecosystem-based water supply management (EBWSM) intervention programs on a monthly basis. The average contribution that the respondents were willing to pay was 150.5 Ethiopian Birr (ETB) as a one-off lump sum to kick off the EBWSM activities. Most of the respondents chose a bundle of water supply options that provides risk-free and high-quality water with no months of shortages than moderate water quality that is safe to drink and palatable with 1 month shortages annually. This implies that households would need to be supplied with risk-free, high-quality water without interruption at an appropriate flow pressure. The model with correlations fitted the data well with the highest simulated log-likelihoods at convergence and gave the best estimate of the households’ WTP for water improvement. Nearly 46% of the sampled households were willing to pay more than 33 ETB per month, and 49% of the households were willing to pay between 21 ETB and 33 ETB per month for the monthly water bill. Overall, approximately 95% of the sampled households were willing to pay more than 21 ETB. Conclusion Customers are willing to pay to avoid most types of water supply restrictions. Moreover, WTP is sensitive to the scope of service improvement, income, affixed price, and elicitation method. In summary, mixed logit WTP-space models can help accurately predict household-level WTP, which can be used to select improvements in drinking water access and services in the Legedadie-Dire catchments

Narratives underlying research in African river basin management

River modifications through hydropower dams and other infrastructure have far-reaching economic, ecological and social effects that are viewed in highly contrasting ways depending on underlying narratives. As part of a Euro-African research consortium funded by the European Commission we studied pathways for sustainable river basin management in the Omo-Turkana basins in Ethiopia and Kenya. Based on a literature review, stakeholder workshops, targeted interviews and considering our own positionality, we identified underlying narratives related to (a) economic transformation and modernization, (b) indigenous rights and (c) nature conservation, which were all connected through water, energy, food and ecosystems within a (d) landscape nexus. Yet, we also identified a (e) living museum narrative suggesting that international advocacy for indigenous rights and nature conservation is a means through which Western societies want to preserve African societies in an "undeveloped" state. National governments use this narrative to silence external critique, while the tourism industry promotes it to advertise visits to pastoralist tribes. This narrative reveals powerful, yet largely ignored hindrances for collaborative projects resulting from cultural and historical biases in Euro-African collaborations. Based on our analysis, we argue that international research projects in sustainability sciences need to increase the transparency of open and hidden narratives that influence research directions and power relationships between scientific partners, also those using mostly technically-driven approaches. We emphasize that African landscapes are not to be viewed as living museums, and collaborative research should be based on fairness, respect, care, and honesty to allow for multiple narratives that underlie research.ISSN:1862-4065ISSN:1862-405