80,293 research outputs found

    Theories and models of the peri-urban interface: a changing conceptual landscape

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    The diffusion of fertilizer in Ethiopia: pattern determinants and implications

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    African Studies Center Working Paper No. 1

    Next Generation Access and Digital Divide: Opposite Sides of the Same Coin?

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    Geographical averaging of retail and wholesale prices could distort incentives for bypass entry in both the metropolitan and the high-cost areas. The two-instrument approach to universal service support, proposed in (Armstrong, 2001), could enhance efficiency, through competitive and technological neutrality. Alternatively, the industry support to high cost areas could be substituted by redistributive fiscal measures or public subsidies. Using evidence from Italy we suggest that tackling demographic, educational, and income inequalities is necessary, even in low cost areas, to support further broadband penetration. We estimate logistic regressions of Internet and broadband use at home, and show that a substantial increase of broadband penetration is possible in Italy only if specific platforms and applications are made available to older and less educated households. Therefore, a critical mass of services could help reaching the critical mass of users that make Next Generation Access Networks viable. --Infrastructural Digital divide,Cultural Digital Divide,Geographical crosssubsidies,Efficient bypass,Critical mass of services

    Rethinking Sanitation: Lessons and Innovation for Sustainability and Success in the New Millennium

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    This report highlights some of the key lessons learned from the past about sustainable sanitation solutions, new thinking emerging from consolidated learning and innovative experimentation on-the-ground, and some of the conditions necessary for success if real improvements in sanitation are to be achieved and sustained in rural and urban areas. Special attention is placed on the shift from supply-led sanitation projects to demand-led and market-oriented projects. The report concludes that with much deeper attention and broadened interest in sanitation, a more realistic view of the complexity, time, resources and effort needed to meet the challenge of large-scale sustainable changes in sanitation at the household level

    Understanding Why Universal Service Obligations May Be Unnecessary: The Private Development of Local Internet Access Markets

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    This study analyzes the geographic spread of commercial Internet Service Providers (ISPs), the leading suppliers of Internet access. The geographic spread of ISPs is a key consideration in U.S. policy for universal access. We examine the Fall of 1998, a time of minimal government subsidy, when inexpensive access was synonymous with a local telephone call to an ISP. Population size and location in a metropolitan statistical area were the single most important determinants of entry, but their effects on national, regional and local firms differed, especially on the margin. The thresholds for entry were remarkably low for local firms. Universal service in less densely-populated areas was largely a function of investment decisions by ISPs with local focus. There was little trace of the early imprint of government subsidies for Internet access at major U.S. universities.Internet; Universal service; Geographic diffusion; Telecommunications
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