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  • 1
    UID:
    almafu_9958246225902883
    Format: 1 online resource (35 pages)
    Series Statement: Policy research working papers.
    Content: This study assesses the accuracy of time-series econometric methods in forecasting electricity demand in developing countries. The analysis of historical time series for 106 developing countries over 1960-2012 demonstrates that econometric forecasts are highly accurate for the majority of these countries. These forecasts significantly outperform predictions of simple heuristic models, which assume that electricity demand grows at an exogenous rate or is proportional to real gross domestic product growth. The quality of the forecasts, however, diminishes for the countries and regions, where rapid economic and structural transformation or exposure to conflicts and environmental disasters makes it difficult to establish stable historical demand trends.
    Language: English
    URL: Volltext  (kostenfrei)
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  • 2
    UID:
    almafu_9958246553902883
    Format: 1 online resource (57 pages)
    Series Statement: Policy research working papers.
    Content: To assess how capital stocks adapt to energy price changes, it is necessary to account for the impacts on different vintages of capital and to account separately for price-induced and autonomous improvements in the energy efficiency of capital stock. The results of econometric analysis for five manufacturing industries in 19 OECD countries between 1990 and 2005 indicate that higher energy prices resulted in smaller energy use due to both improved energy efficiency of capital stock and reduced demand for the energy input. The investment response to energy prices varied considerably across manufacturing industries, being more significant in energy-intensive sectors. The results of policy simulations indicate that a carbon tax can deliver significant reductions in energy consumption in the medium run with modest declines in energy-using capital stock.
    Language: English
    URL: Volltext  (kostenfrei)
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  • 3
    UID:
    almafu_9958246554002883
    Format: 1 online resource (87 pages)
    Series Statement: Policy research working papers.
    Content: Economic, agronomic, and biophysical drivers affect global land use, so all three influences need to be considered in evaluating economically optimal allocations of the world's land resources. A dynamic, forward-looking optimization framework applied over the course of the coming century shows that although some deforestation is optimal in the near term, in the absence of climate change regulation, the desirability of further deforestation is eliminated by mid-century. Although adverse productivity shocks from climate change have a modest effect on global land use, such shocks combined with rapid growth in energy prices lead to significant deforestation and higher greenhouse gas emissions than in the baseline. Imposition of a global greenhouse gas emissions constraint further heightens the competition for land, as fertilizer use declines and land-based mitigation strategies expand. However, anticipation of the constraint largely dilutes its environmental effectiveness, as deforestation accelerates prior to imposition of the target.
    Language: English
    URL: Volltext  (kostenfrei)
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  • 4
    UID:
    almafu_9958246528002883
    Format: 1 online resource (40 pages)
    Series Statement: Policy research working papers.
    Content: This study seeks to understand how materials scarcity and competition from alternative uses affects the potential for widespread deployment of solar electricity in the long run, in light of related technology and policy uncertainties. Simulation results of a computable partial equilibrium model predict a considerable expansion of solar electricity generation worldwide in the near decades, as generation technologies improve and production costs fall. Increasing materials scarcity becomes a significant constraint for further expansion of solar generation, which grows considerably slower in the second half of the coming century. Solar generation capacity increases with higher energy demand, squeezing consumption in industries that compete for scarce minerals. Stringent climate policies hamper growth in intermittent solar photovoltaics backed by fossil fuel powered plants, but lead to a small increase in non-intermittent concentrated solar power technology. By the end of the coming century, solar electricity remains a marginal source of global electricity supply even in the world of higher energy demand, strict carbon regulations, and generation efficiency improvements.
    Language: English
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  • 5
    Online Resource
    Online Resource
    Washington, D.C. :The World Bank,
    UID:
    almafu_9958143911202883
    Format: 1 online resource (26 pages)
    Series Statement: Policy research working papers.
    Content: This paper analyzes the important, yet often ignored, link between capital adjustment and the choice of fuels used by manufacturing firms. A novel econometric framework, which explicitly incorporates heterogeneous fuel-using capital stocks in the estimation of optimal fuel choice, is applied to a large panel of Irish manufacturing firms. The econometric estimates show a significant variation in the optimal response of capital to changing fuel prices across different fuel-using technologies. For all the technologies, significant costs to capital adjustment are found. The costs are much larger compared with earlier estimates of adjustment costs based on lagged values of output and fuel prices. The findings imply that the path to full adjustment of capital stocks in response to changing fuel prices may be much longer than was previously thought.
    Language: English
    URL: Volltext  (kostenfrei)
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  • 6
    UID:
    almafu_9958246551602883
    Format: 1 online resource (40 pages)
    Series Statement: Policy research working papers.
    Content: Power pools constitute a set of sometimes complex institutional arrangements for efficiency-enhancing coordination among power systems. Where such institutional arrangements do not exist, there still can be scope for voluntary electricity-sharing agreements among power systems. This paper uses a particular type of efficient risk-sharing model with limited commitment to demonstrate that second-best coordination improvements can be achieved with low to moderate risks of participants leaving the agreement. In the absence of an impartial market operator who can observe fluctuations in connected power systems, establishing quasi-markets for trading excess electricity through the kind of mechanism described here helps achieve sustainable cooperation in mutually beneficial electricity sharing.
    Language: English
    URL: Volltext  (kostenfrei)
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  • 7
    UID:
    almafu_9958246531402883
    Format: 1 online resource (23 pages)
    Series Statement: Policy research working papers.
    Content: What is second-generation biofuel technology worth to global society? A dynamic, computable partial equilibrium model (called FABLE) is used to assess changes in global land use for crops, livestock, biofuels, forestry, and environmental services, as well as greenhouse gas emissions, with and without second-generation biofuels technology. The difference in the discounted stream of global valuations of land-based goods and services gives the value of second-generation technology to society. Under baseline conditions, this to amounts to USD 64.2 billion at today's population or an increase of roughly 0.3 percent in the valuation of the world's land resources. This gain arises despite the fact that, in the baseline scenario, the technology does not become commercially viable until 2035. Alternative scenarios considered include: diminished crop yield growth owing to adverse climate impacts, flat energy prices, low economic growth, and high population growth, as well as greenhouse gas regulation. The most important factor driving second-generation valuation is greenhouse gas regulation, which more than doubles the social value of this technology. Flat energy prices essentially eliminate the value of second-generation technology to society, and high population growth reduces its value because of the heightened competition for land for food production.
    Language: English
    URL: Volltext  (kostenfrei)
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  • 8
    Online Resource
    Online Resource
    Washington, D.C. :The World Bank,
    UID:
    almafu_9958143947002883
    Format: 1 online resource (42 pages)
    Series Statement: Policy research working papers.
    Content: Since the industrial revolution, the economic development of Western Europe and North America was characterized by continuous urbanization accompanied by a gradual phasing-in of urban land property rights over time. Today, however, the evidence in many fast urbanizing low-income countries points towards a different trend of "urbanization without formalization", with potentially adverse effects on long-term economic growth. This paper aims to understand the causes and the consequences of this phenomenon, and whether informal city growth could be a transitory or a persistent feature of developing economies. A dynamic stochastic equilibrium model of a representative city is developed, which explicitly accounts for the joint dynamics of land property rights and urbanization. The calibrated baseline model describes a city that first grows informally, with the growth of individual incomes leading to a phased-in purchase of property rights in subsequent periods. The model demonstrates that land tenure informality does not necessarily vanish in the long term, and the social optimum does not necessarily imply a fully formal city, neither in the transition, nor in the long run. The welfare effects of policies, such as reducing the cost of land tenure formalization, or protecting informal dwellers against evictions are subsequently investigated, throughout the short-term transition and in the long-term stationary state.
    Language: English
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  • 9
    UID:
    almafu_9958246546302883
    Format: 1 online resource (61 pages)
    Series Statement: Policy research working papers.
    Content: The pattern of global land use has important implications for the world's food and timber supplies, bioenergy, biodiversity and other eco-system services. However, the productivity of this resource is critically dependent on the world's climate, as well as investments in, and dissemination of improved technology. This creates massive uncertainty about future land use requirements which compound the challenge faced by individual investors and governments seeking to make long term, sometimes irreversible investments in land conversion and land use. This study assesses how uncertainties associated with underlying biophysical processes and technological change in agriculture affect the optimal profile of land use over the next century, taking into account the potential irreversibility in these decisions. A novel dynamic stochastic model of global land use is developed, in which the societal objective function being maximized places value on food production, liquid fuels (including bio-fuels), timber production, and biodiversity. While the uncertainty in food crop yields has anticipated impact, the resulting expansion of crop lands and decline in forest lands is relatively small.
    Language: English
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  • 10
    UID:
    almafu_9961265131702883
    Format: 1 online resource (41 pages)
    Content: Developing countries face a major challenge of decarbonizing their light-duty vehicle fleet and transitioning to the broad use of electric vehicles. However, there is little evidence on which policies can most effectively facilitate that transition in these countries, distinguished by relatively low-income consumers and highly concentrated markets that distort vehicle markups. This paper analyzes existing and proposed policies aiming to reduce emissions from new passenger vehicles in Colombia, which has used preferential sales taxes and import tariffs to stimulate hybrid and electric cars sales. Using highly detailed data on vehicle purchases and attributes, the paper estimates an equilibrium model of Colombia's market that includes a random-coefficients logit demand structure and endogenizes firms' markups. Using the model to simulate policies, the analysis finds that Colombia's sales tax and import tariffs have increased hybrid and electric vehicle market shares by 0.9 to 2.7 percentage points at welfare costs of USD 40-USD 48 per ton of carbon dioxide reduction. Potentially taxing carbon dioxide emissions rates of new vehicles would have roughly similar welfare costs. The high welfare costs of these policies arise from preexisting distortions caused by market power, which yields large private welfare costs of shifting from gasoline to hybrid and electric vehicles.
    Language: English
    URL: Volltext  (kostenfrei)
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