250 research outputs found
Principle Guided Investing: The Use of Negative Screens and its Implications for Green Investors
In recent years Socially Responsible Investment (SRI) has received considerable attention from both private investors as well as pension funds. Despite this proliferation in interest, several topics are still unresolved, namely selection methods, performance and effects regarding sustainability. This paper examines how green investors can induce firms to invest in cleaner production technology by using exclusionary investment screens. SRI is more likely to be successful when abatement costs are low and if principle guided investors are numerous and have homogenous investment principles. The transformation process becomes more probable when shares of clean firms are viewed as a separate asset class by all investors. Green investors have to accept lower returns from shares of clean firms, even in the case of positive externalities
Renewable Energy Support in Germany: Surcharge Development and the Impact of a Decentralized Capacity Mechanism
The German support for renewable energies in the electricity sector is based on the feed-in tariff for investors that grants guaranteed revenues for their renewable energy supply. Corresponding to differences of granted tariffs and respective market values, a surcharge on consumption covers differential costs. While granted tariffs are bound to fall with advances in renewable energy technologies, the market design and the flexibility of the system influence the expected market values of renewables and the necessary surcharge. We apply the European electricity market equilibrium model EMELIE-ESY to investigate this relationship. We find a crucial dependence of market values of renewables on a high system flexibility and the current so-called energy-only market design. Under these conditions, the market values of renewables sequentially recover with increasing market prices by 2024 and 2034. This allows to limit the increase of the core surcharge to below a quarter of its 2013 value by 2024 despite a doubling of renewables, and to introduce substantial surcharge reductions through 2034. However, the introduction of a capacity market would erode market values of renewable energies and induce a pronounced growth of the core surcharge. Under inflexible supply structures and a capacity market, we find an increase of the core surcharge of more than 50 percent by 2024, a respective loss of the market value of wind power of the same magnitude, and an increase of the generation induced part of the consumer prices of more than a quarter
Banking Union as a Shock Absorber
This study investigates the shock-absorbing properties of a banking union by providing a detailed comparison between the way regional financial shocks have been absorbed at the federal level in the US, but have led to severe regional (national) financial dislocation and tensions in the euro area. The extent to which the institutions of the banking union, which is now emerging in the euro area, should increase its capacity to deal with future regional boom and bust cycles is also discussed. Cross-border capital flows in the form of equity appear to be much more stable than those taking the form of credit, especially inter-bank credit. Moreover, credit booms and bust leave a debt overhang and losses can materialise only via insolvencies, whereas equity flows absorb automatically losses in case of a bust and provide the cross border owner with incentives to continue to provide financing. It follows that cross-border banks can absorb regional shocks. But large banks pose the 'too big to fail' problem and they would also propagate regional shocks, especially if they originate in large countries, to the entire area
Structure-based prediction of insertion-site preferences of transposons into chromosomes
Mobile genetic elements with the ability to integrate genetic information into chromosomes can cause disease over short periods of time and shape genomes over eons. These elements can be used for functional genomics, gene transfer and human gene therapy. However, their integration-site preferences, which are critically important for these uses, are poorly understood. We analyzed the insertion sites of several transposons and retroviruses to detect patterns of integration that might be useful for prediction of preferred integration sites. Initially we found that a mathematical description of DNA-deformability, called V(step), could be used to distinguish preferential integration sites for Sleeping Beauty (SB) transposons into a particular 100 bp region of a plasmid [G. Liu, A. M. Geurts, K. Yae, A. R. Srinivassan, S. C. Fahrenkrug, D. A. Largaespada,J. Takeda, K. Horie, W. K. Olson and P. B. Hackett (2005) J. Mol. Biol., 346, 161–173 ]. Based on these findings, we extended our examination of integration of SB transposons into whole plasmids and chromosomal DNA. To accommodate sequences up to 3 Mb for these analyses, we developed an automated method, ProTIS(©), that can generate profiles of predicted integration events. However, a similar approach did not reveal any structural pattern of DNA that could be used to predict favored integration sites for other transposons as well as retroviruses and lentiviruses due to a limitation of available data sets. Nonetheless, ProTIS(©) has the utility for predicting likely SB transposon integration sites in investigator-selected regions of genomes and our general strategy may be useful for other mobile elements once a sufficiently high density of sites in a single region are obtained. ProTIS analysis can be useful for functional genomic, gene transfer and human gene therapy applications using the SB system
Beyond Market Failures: The Market Creating and Shaping Roles of State Investment Banks
Recent decades witnessed a trend whereby private markets retreated from financing the real economy, while, simultaneously, the real economy itself became increasingly financialized. This trend resulted in public finance becoming more important for investments in capital development, technical change, and innovation. Within this context, this paper focuses on the roles played by a particular source of public finance: state investment banks (SIBs). It develops a conceptual typology of the different roles that SIBs play in the economy, which together show the market creation/shaping process of SIBs rather than their mere "market fixing" roles. This paper discusses four types of investments, both theoretically and empirically: countercyclical, developmental, venture capitalist, and challenge led. To develop the typology, we first discuss how standard market failure theory justifies the roles of SIBs, the diagnostics and evaluation toolbox associated with it, and resulting criticisms centered on notions of "government failures." We then show the limitations of this approach based on insights from Keynes, Schumpeter, Minsky, and Polanyi, as well as other authors from the evolutionary economics tradition, which help us move toward a framework for public investments that is more about market creating/shaping than market fixing. As frameworks lead to evaluation tools, we use this new lens to discuss the increasingly targeted investments that SIBs are making, and to shed new light on the usual criticisms that are made about such directed activity (e.g., crowding out and picking winners). The paper ends with a proposal of directions for future research
A Search for Photons with Energies Above 2X10(17) eV Using Hybrid Data from the Low-Energy Extensions of the Pierre Auger Observatory
Ultra-high-energy photons with energies exceeding 10(17) eV offer a wealth of connections to different aspects of cosmic-ray astrophysics as well as to gamma-ray and neutrino astronomy. The recent observations of photons with energies in the 10(15) eV range further motivate searches for even higher-energy photons. In this paper, we present a search for photons with energies exceeding 2 x 10(17) eV using about 5.5 yr of hybrid data from the low-energy extensions of the Pierre Auger Observatory. The upper limits on the integral photon flux derived here are the most stringent ones to date in the energy region between 10(17) and 10(18) eV
EuFeAs under high pressure: an antiferromagnetic bulk superconductor
We report the ac magnetic susceptibility and resistivity
measurements of EuFeAs under high pressure . By observing nearly
100% superconducting shielding and zero resistivity at = 28 kbar, we
establish that -induced superconductivity occurs at ~30 K in
EuFeAs. shows an anomalous nearly linear temperature dependence
from room temperature down to at the same . indicates that
an antiferromagnetic order of Eu moments with ~20 K persists
in the superconducting phase. The temperature dependence of the upper critical
field is also determined.Comment: To appear in J. Phys. Soc. Jpn., Vol. 78 No.
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