Browsing by Author "Vegh, Tibor"

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    20 Years of Government Responses to the Global Plastic Pollution Problem: The Plastics Policy Inventory
    (2020-05-15) Virdin, John; Karasik, Rachel; Vegh, Tibor; Pickle, Amy; Diana, Zoie; Rittschof, Daniel; Bering, Janet; Caldas, Juan
    Plastic pollution in the ocean is a global problem that requires cooperation from a wide range of groups (e.g., governments, producers, consumers, researchers, civil society). This study aims to synthesize the policy response of governments to the global plastic pollution problem, as a basis for more rigorous monitoring of progress (as called for in Resolution 4/6 of the 2019 United Nations Environment Assembly (UNEA) meeting) and to inform future public policies.
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    Effect of Existing and Novel Policy Options on the Sustainable Development of Regional Bioenergy Systems: Lessons and Future Directions
    (2016-08-01) Galik, Christopher; Vegh, Tibor; Abt, Robert; Latta, Gregory
    What are the most appropriate policies to facilitate regional bioenergy systems in furtherance of environmental, social, and economic objectives? A multi-year research project funded by the U.S. Department of Agriculture’s National Institute of Food and Agriculture has attempted to answer that question for the southeastern United States. Project analyses found few policies targeted to the upstream portions of the supply chain in the region, suggesting that efforts to encourage sustainable bioenergy markets should be cognizant of the dynamics of feedstock production and use. Investigation of bioenergy market participation identified non-production objectives, structural and social constraints, and market-related attributes that could influence market participation decision making. It also suggested that policies specific to individual markets might be more effective than uniform national initiatives in encouraging participation. Modeling of potential policies to facilitate development of regional bioenergy systems suggested that feedstock dynamics play a critical role in outcomes. A region-wide renewable portfolio standard—a policy characterized by few restrictions on the location of feedstock production and use—led to increases in forest carbon and decreases in greenhouse gas emissions at multiple scales. Forcing feedstock production and use to occur in particular locations might have the opposite outcome. The effectiveness of regional bioenergy systems will depend on the responsiveness of policy to social, economic, and resource conditions.
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    Modeling Energy Efficiency as a Supply Resource
    (2017-08-22) Gumerman, Etan; Vegh, Tibor
    Energy efficiency may be an inexpensive way to meet future demand and reduce greenhouse gas emissions, yet little work has been attempted to estimate annual energy efficiency supply functions for electricity planning. The main advantage of using a supply function is that energy efficiency adoption can change as demand changes. Models such as Duke University’s Dynamic Integrated Economy/Energy/Emissions Model (DIEM) have had to rely on simplistic or fixed estimates of future energy efficiency from the literature rather than on estimates from energy efficiency supply curves. This paper attempts to develop a realistic energy efficiency supply curve and to improve on the current energy efficiency modeling. It suggests an alternative approach based on saved-energy cost data from program administrators and explains the methodologies employed to create the supply curve. It illustrates this approach with results from DIEM for various electricity demand scenarios. The analysis suggests that an additional 5%–9% of energy efficiency is deployed for every 10% increase in the cost of electricity. Therefore, DIEM “invested” in energy efficiency up to an inelastic point on the energy efficiency supply curve. By contrast, the U.S. Environmental Protection Agency’s energy efficiency approach assumes that realized energy efficiency is fixed, and has no elasticity, regardless of changes to marginal costs or constraints that affect emissions or economics.