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  • 1
    Online Resource
    Online Resource
    Spatial Analysis of Liberia's Transport Connectivity and Potential Growth (2018)
    Washington, D.C : The World Bank
    Details
    Language: English
    Pages: 1 Online-Ressource (130 pages)
    Series Statement: World Bank E-Library Archive
    Series Statement: International Development in Focus
    Parallel Title: Erscheint auch als
    Abstract: Liberia has been influenced by the Ebola crisis since 2014, but the economy is now recovering quickly. Still, significant challenges lie ahead. Agriculture, an important sector that employs approximately half of the labor force, still has a weak growth trajectory. Many rural people are not well connected to markets and live below the poverty line. To use limited resources effectively, strategic planning and prioritization of public investment are essential. Particularly, the Ebola crisis revealed the vulnerability of the country's transport connectivity and health systems. This book analyzes the country's transport connectivity, identifying the existing bottlenecks and possible economic potentials. By taking advantage of the country's first-ever georeferenced road network data, the analysis casts light on various aspects of connectivity, such as rural accessibility, market access, access to port and health facilities and multimodal connectivity, including cabotage. It is shown that transport connectivity is crucial to increasing agricultural production, stimulating agglomeration economies, and supporting people's access to health care services. Significant resources are likely to be required to meet the existing gap. The book estimates the financial needs by development objective and discusses important policy issues, including the possibility of public-private partnerships to finance transport infrastructure
    DOI: 10.1596/978-1-4648-1286-6
    URL: Deutschlandweit zugänglich
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    Online Resource
    MPI Ethno. Forsch.
  • 2
    Online Resource
    Online Resource
    Price Structure And Network Externalities In The Telecommunications Industry : Evidence From Sub-Saharan Africa (2007)
    Washington, D.C : The World Bank
    Details
    Language: English
    Pages: Online-Ressource (1 online resource (43 p.))
    Edition: Online-Ausg. World Bank E-Library Archive
    Parallel Title: Iimi, Atsushi Price Structure And Network Externalities In The Telecommunications Industry
    Keywords: Access to Markets ; Data ; Debt Markets ; E-Business ; Economic Theory and Research ; Electricity ; Emerging Markets ; Fax ; Finance and Financial Sector Development ; Infrastructure Development ; International Economics & Trade ; International Telecommunication ; Macroeconomics and Economic Growth ; Markets and Market Access ; Mobile Phone ; Mobile Phone Subscribers ; Mobile Telephone ; Network ; Penetration Rate ; Private Sector Development ; Telecommunications Infrastructure ; Access to Markets ; Data ; Debt Markets ; E-Business ; Economic Theory and Research ; Electricity ; Emerging Markets ; Fax ; Finance and Financial Sector Development ; Infrastructure Development ; International Economics & Trade ; International Telecommunication ; Macroeconomics and Economic Growth ; Markets and Market Access ; Mobile Phone ; Mobile Phone Subscribers ; Mobile Telephone ; Network ; Penetration Rate ; Private Sector Development ; Telecommunications Infrastructure ; Access to Markets ; Data ; Debt Markets ; E-Business ; Economic Theory and Research ; Electricity ; Emerging Markets ; Fax ; Finance and Financial Sector Development ; Infrastructure Development ; International Economics & Trade ; International Telecommunication ; Macroeconomics and Economic Growth ; Markets and Market Access ; Mobile Phone ; Mobile Phone Subscribers ; Mobile Telephone ; Network ; Penetration Rate ; Private Sector Development ; Telecommunications Infrastructure
    Abstract: Many developing countries have experienced significant developments in their telecommunications network. Countries in Africa are no exception to this. The paper examines what factor facilitates most network expansion using micro data from 45 fixed-line and mobile telephone operators in 18 African countries. In theory the telecommunications sector has two sector-specific characteristics: network externalities and discriminatory pricing. It finds that many telephone operators in the region use peak and off-peak prices and termination-based price discrimination, but are less likely to rely on strategic fee schedules such as tie-in arrangements. The estimated demand function based on a discreet consumer choice model indicates that termination-based discriminatory pricing can facilitate network expansion. It also shows that the implied price-cost margins are significantly high. Thus, price liberalization could be conducive to development of the telecommunications network led by the private sector. Some countries in Africa are still imposing certain price restrictions. But more important, it remains a policy issue how the authorities should ensure reciprocal access between operators at reasonable cost
    URL: Volltext  (Deutschlandweit zugänglich)
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    Online Resource
    MPI Ethno. Forsch.
  • 3
    Online Resource
    Online Resource
    (UN)Bundling Public-Private Partnership Contracts In The Water Sector : Competition In Auctions And Economies of Scale In Operation (2008)
    Washington, D.C : The World Bank
    Details
    Language: English
    Pages: Online-Ressource (1 online resource (26 p.))
    Edition: Online-Ausg. World Bank E-Library Archive
    Parallel Title: Iimi, Atsushi (UN)Bundling Public-Private Partnership Contracts In The Water Sector
    Keywords: Competitive Bidding ; Industry ; Local Water ; Municipal Water ; Private Participation ; Sewerage Services ; Town Water Supply and Sanitation ; Urban Water Supply and Sanitation ; Water Conservation ; Water Districts ; Water Resources ; Water Sector ; Water Services ; Water Supply ; Water Supply and Sanitation ; Water Supply and Sanitation Governance and Institutions ; Water Utilities ; Water and Industry ; Competitive Bidding ; Industry ; Local Water ; Municipal Water ; Private Participation ; Sewerage Services ; Town Water Supply and Sanitation ; Urban Water Supply and Sanitation ; Water Conservation ; Water Districts ; Water Resources ; Water Sector ; Water Services ; Water Supply ; Water Supply and Sanitation ; Water Supply and Sanitation Governance and Institutions ; Water Utilities ; Water and Industry ; Competitive Bidding ; Industry ; Local Water ; Municipal Water ; Private Participation ; Sewerage Services ; Town Water Supply and Sanitation ; Urban Water Supply and Sanitation ; Water Conservation ; Water Districts ; Water Resources ; Water Sector ; Water Services ; Water Supply ; Water Supply and Sanitation ; Water Supply and Sanitation Governance and Institutions ; Water Utilities ; Water and Industry
    Abstract: In public-private partnership transactions in the water sector, one of the alleged concerns is that there is little market competition at the auction stage. This paper casts light on a tradeoff between the competition effect at the auction level and potential economies of scale in service operation. If the authorities design a large-scale public-private partnership water transaction, it is expected to exploit operational scale economies. But the competition effect may have to be sacrificed. The paper shows a risk that the selection of the contract size could be a very restrictive condition that excludes many prospective bidders. Moreover, the paper quantifies the optimal size of public-private partnership contracts in the sector by estimating a cost function. The analysis shows that economies of scale exist but tend to diminish quickly as production increases. When the amount of water sold exceeds about 40 million m3, the statistical significance of economies of scale disappears. And there is no rationale for auctioning the water operation with annual water delivery of more than 400 million m3 under a single contract
    URL: Volltext  (Deutschlandweit zugänglich)
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    Online Resource
    MPI Ethno. Forsch.
  • 4
    Online Resource
    Online Resource
    Optimizing the Size of Public Road Contracts (2012)
    Washington, D.C : The World Bank
    Details
    Language: English
    Pages: Online-Ressource (27 p)
    Edition: 2012 World Bank eLibrary
    Parallel Title: Atsushi Iimi Optimizing the Size of Public Road Contracts
    Abstract: Procurement packaging has important effects on not only the bidders' bidding behavior, but also contractors' performance. By changing the size of public contracts, procurers can encourage (or discourage) market competition and improve contract performance, avoiding unnecessary cost overruns and project delays. In practice, there is no single solution about how to package public contracts. With procurement data from road projects in Nepal, this paper examines the optimal size of road contracts in rural areas. The optimum varies depending on policy objectives. To maximize the bidder participation, the length of road should be about 11 kilometers. To minimize cost overruns and delays, the contracts should be much larger at 17 and 21 kilometers, respectively. Compared with the current procurement practices, the findings suggest that procurers take more advantage of enlarging road packages, although contracts that are too large may increase the risk of discouraging firms from participating in public tenders
    DOI: 10.1596/1813-9450-6028
    URL: Volltext  (Deutschlandweit zugänglich)
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    Online Resource
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  • 5
    Online Resource
    Online Resource
    Adapting Road Procurement to Climate Conditions (2012)
    Washington, D.C : The World Bank
    Details
    Language: English
    Pages: Online-Ressource (23 p)
    Edition: 2012 World Bank eLibrary
    Parallel Title: Atsushi Iimi Adapting Road Procurement to Climate Conditions
    Abstract: The world's climate is changing. It is well recognized that technical standards and project specifications of public infrastructure have to be adjusted, depending on the climate. However, it is less recognized that the public infrastructure procurement also needs to be adjusted. This paper examines a particular case of rural road procurement in Nepal. Severe weather conditions, such as heavy rains and storms, are likely to interrupt civil works and wash away unpaved or gravel roads. It is found that heavy precipitation causes delays, but not cost overruns. The paper also shows that budgetary efficiency and credibility could be improved by taking climate conditions into account. If future precipitation were anticipated by backward-looking expectations, many large project delays could be avoided. If the autoregressive precipitation model were used, the vast majority of the observed delays could be eliminated
    DOI: 10.1596/1813-9450-6029
    URL: Volltext  (Deutschlandweit zugänglich)
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    Online Resource
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  • 6
    Online Resource
    Online Resource
    Multidimensional Auctions for Public Energy Efficiency Projects : Evidence from the Japanese ESCO Market (2013)
    Washington, D.C : The World Bank
    Details
    Language: English
    Pages: Online-Ressource (49 p)
    Edition: 2013 World Bank eLibrary
    Parallel Title: Iimi, Atsushi Multidimensional Auctions for Public Energy Efficiency Projects
    Abstract: Competitive bidding is an important policy tool to procure goods and services from the market at the lowest possible cost. Under traditional public procurement systems, however, it may be difficult to purchase highly customized objects, such as energy efficiency services. This is because not only prices but also other nonmonetary aspects need to be taken into account. Multidimensional auctions are often used to evaluate multidimensional bids. This paper examines the bidding strategy in multidimensional auctions, using data from public energy service company projects in Japan. It shows that multidimensional auctions work well, as theory predicts. The competition effect is significant. In addition, strategic information disclosure, including walk-through and preannouncement of reserve prices, can also promote energy savings and investment. Risk sharing arrangements are critical in the energy service company market. In particular, the public sector should take regulatory risk
    DOI: 10.1596/1813-9450-6485
    URL: Volltext  (Deutschlandweit zugänglich)
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  • 7
    Online Resource
    Online Resource
    Rail Transport and Firm Productivity : Evidence from Tanzania (2017)
    Washington, D.C : The World Bank
    Details
    Language: English
    Pages: 1 Online-Ressource (34 p)
    Series Statement: World Bank E-Library Archive
    Parallel Title: Erscheint auch als Iimi, Atsushi Rail Transport and Firm Productivity: Evidence from Tanzania
    Abstract: Railway transport generally has the advantage for large-volume, long-haul freight operations. Africa possesses significant railway assets. However, many rail lines are currently not operational because of the lack of maintenance. The paper recasts light on the impact of rail transportation on firm productivity, using micro data collected in Tanzania. To avoid the endogeneity problem, the instrumental variable technique is used to estimate the impact of rail transport. The paper shows that the overall impact of rail use on firm costs is significant despite that the rail unit rates are set lower when the shipping distance is longer. Rail transport is a cost-effective option for firms. However, the study finds that firms' inventory is costly. This is a disadvantage of using rail transport. Rail operations are unreliable, adding more inventory costs to firms. The implied elasticity of demand for transport services is estimated at ?1.01 to ?0.52, relatively high in absolute terms. This indicates the rail users' sensitivity to prices as well as severity of modal competition against truck transportation. The study also finds that firm location matters to the decision to use rail services. Proximity to rail infrastructure is important for firms to take advantage of rail benefits
    DOI: 10.1596/1813-9450-8173
    URL: Volltext  (Deutschlandweit zugänglich)
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  • 8
    Online Resource
    Online Resource
    Port Rail Connectivity and Agricultural Production : Evidence from a Large Sample of Farmers in Ethiopia (2017)
    Washington, D.C : The World Bank
    Details
    Language: English
    Pages: 1 Online-Ressource (29 p)
    Series Statement: World Bank E-Library Archive
    Parallel Title: Erscheint auch als Iimi, Atsushi Port Rail Connectivity and Agricultural Production: Evidence from a Large Sample of Farmers in Ethiopia
    Abstract: Agriculture remains an important economic sector in Africa, employing a large share of the labor force and earning foreign exchange. Among others, transport connectivity has long been a crucial constraint in Africa. In theory, railways have a particularly important role to play in shipping freight and passengers at low cost. However, most African railways were in virtual bankruptcy by the 1990s. Using a large sample of data comprised of more than 190,000 households over eight years in Ethiopia, the paper estimates the impacts of rail transport on agricultural production. Methodologically, the paper takes advantage of the historical event that a major rail line connecting the country to the regional hub, the Port of Djibouti, was abandoned in the 2000s. With spatially highly disaggregated fixed effects and instrumental variables incorporated, an agricultural production function is estimated. The elasticity with respect to port connectivity is estimated at 0.276. The use of fertilizer is also found to increase with transport cost reduction, supporting the fact that a large amount of fertilizer is imported to Ethiopia
    DOI: 10.1596/1813-9450-8088
    URL: Volltext  (Deutschlandweit zugänglich)
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  • 9
    Online Resource
    Online Resource
    Crop Choice and Infrastructure Accessibility in Tanzania: Subsistence Crops or Export Crops? (2015)
    Washington, D.C : The World Bank
    Details
    Language: English
    Pages: 1 Online-Ressource (35 p)
    Series Statement: World Bank E-Library Archive
    Parallel Title: Erscheint auch als Iimi, Atsushi Crop Choice and Infrastructure Accessibility in Tanzania: Subsistence Crops or Export Crops?
    Abstract: Macroeconomics and Economic Growth
    DOI: 10.1596/1813-9450-7306
    URL: Volltext  (Deutschlandweit zugänglich)
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  • 10
    Online Resource
    Online Resource
    Firms' Locational Choice and Infrastructure Development in Rwanda (2015)
    Washington, D.C : The World Bank
    Details
    Language: English
    Pages: 1 Online-Ressource (28 p)
    Series Statement: World Bank E-Library Archive
    Parallel Title: Erscheint auch als Iimi, Atsushi Firms' Locational Choice and Infrastructure Development in Rwanda
    Abstract: Finance and Financial Sector Development
    DOI: 10.1596/1813-9450-7279
    URL: Volltext  (Deutschlandweit zugänglich)
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