101 research outputs found

    A Look Upstream: Market Restructuring, Risk, Procurement Contracts and Efficiency

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    We study how market deregulation affects the upstream industry both theoretically and empirically. Our theory predicts that firms respond to increases in uncertainty due to deregulation by writing more rigid contracts with their suppliers. Using the restructuring of the U.S. electricity market as our case study, we find support for our theoretical predictions. Our findings imply a greater emphasis on efficiency at coal mines contracting with restructured plants. The evidence suggests a 17% improvement in productivity at these mines, relative to those contracting with regulated plants. We find, on the other hand, that transaction costs may have increased. We conclude that deregulation has significant impacts upstream from deregulated markets

    A Look Upstream: Electricity Market Restructuring, Risk, Procurement Contracts and Efficiency

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    This paper analyzes theoretically and empirically how upstream markets are affected by deregulation downstream. Deregulation tends to increase the level of uncertainty in the upstream market. Our theoretical analysis predicts that deregulated firms respond to this increase in uncertainty by writing more rigid contracts with their suppliers. Using the restructuring of the electricity market in the U.S. as our case study, we find support for our theoretical predictions. Furthermore, we investigate the impact this change in procurement contracts has on efficiency. Focusing on coal mines, we find that those selling coal to plants in restructured markets are significantly more productive than their counterparts working with regulated plants. On the other hand, we also find that transaction costs may have increased as a consequence of deregulation

    Faculty Recital: Love, Nature and the Divine

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    Political 'colour' and firm behaviour: Evidence from U.S. power plants' pollution abatement

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    We ask whether firms behave differently depending on the political party in charge, above and beyond responding to any actual differences in policy. We use the pollution abatement behaviour of U.S. Steam Electric Power Plants under the Clean Water Act as our case study. Exploiting the variation provided by the outcome of tightly contested gubernatorial elections, we provide causal evidence that large firms respond to the political `colour' of the governor in the state they operate, even when neither the stringency nor the enforcement of the rules depend on it. Within a theoretical model of the interaction between the regulator and the regulated firms, we show that multiple equilibria arise, and the outcomes of the election provide an effective coordination device. This unexpected behaviour has real-world consequences and leads to significant differences in pollution levels

    Tracking soil particle deposition using bio-indication evidence and nondestructive FESEM and EDS analyses: A preliminary (pilot) study

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    The present study present chemometric bioindication methodology for fast and effective monitoring in long distant distribution of top soil pollution and evidence for element soil dust deposition. Both varieties of Briophytes, Hypnum cupressiforme (Hedw.) and Homalothecium lutescens (Hedw.) has been used for improving the effective nondestructive bio-indication. Although mosses do not have a root system, influence from soil dusting cannot be disregarded, in praticular in areas with windblown mineral dust from local soil. As far as the surface bound fraction is concerned, little is known about the binding mechanisms, but the fact that different metals show rather large differences in their retention capacities, indicates that both simple cation exchange on negative surface charges and complex formation with ligands on the moss surface are involved. Laboratory analysis, using field emission scanning electron microscopy (FESEM) and energy dispersive X-ray spectrometer (EDS) has been involved for determination of the dry deposition occurred within moss biomonitors. The bioindication chemometric model was improved for nondestuctive evidence effectively for biogenic elements carbon and oxygen, macroelements Mg, Al, Si, K, Ca, and microelements Fe, Cu and Zn. Both moss species can be used interchangeable for dust deposition investigation

    Developing multiscale and integrative nature–people scenarios using the Nature Futures Framework

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    1. Scientists have repeatedly argued that transformative, multiscale global scenarios are needed as tools in the quest to halt the decline of biodiversity and achieve sustainability goals. 2. As a first step towards achieving this, the researchers who participated in the scenarios and models expert group of the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES) entered into an iterative, participatory process that led to the development of the Nature Futures Framework (NFF). 3. The NFF is a heuristic tool that captures diverse, positive relationships of humans with nature in the form of a triangle. It can be used both as a boundary object for continuously opening up more plural perspectives in the creation of desirable nature scenarios and as an actionable framework for developing consistent nature scenarios across multiple scales. 4. Here we describe the methods employed to develop the NFF and how it fits into a longer term process to create transformative, multiscale scenarios for nature. We argue that the contribution of the NFF is twofold: (a) its ability to hold a plurality of perspectives on what is desirable, which enables the development of joint goals and visions and recognizes the possible convergence and synergies of measures to achieve these visions and (b), its multiscale functionality for elaborating scenarios and models that can inform decision-making at relevant levels, making it applicable across specific places and perspectives on nature. 5. If humanity is to achieve its goal of a more sustainable and prosperous future rooted in a flourishing nature, it is critical to open up a space for more plural per- spectives of human–nature relationships. As the global community sets out to de- velop new goals for biodiversity, the NFF can be used as a navigation tool helping to make diverse, desirable futures possible
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