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Efficiency
Kinds of Efficiency Terms modified by Efficiency Selected AbstractsTHE EFFICIENCY OF SEQUESTERING CARBON IN AGRICULTURAL SOILSCONTEMPORARY ECONOMIC POLICY, Issue 2 2001GR Pautsch Agricultural tillage practices are important human-induced activities that can alter carbon emissions from agricultural soils and have the potential to contribute significantly to reductions in greenhouse gas emission (Lal et al., The Potential of U.S. Cropland, 1998). This research investigates the expected costs of sequestering carbon in agricultural soils under different subsidy and market-based policies. Using detailed National Resources Inventory data, we estimate the probability that farmers adopt conservation tillage practices based on a variety of exogenous characteristics and profit from conventional practices. These estimates are used with physical models of carbon sequestration to estimate the subsidy costs of achieving increased carbon sequestration with alternative subsidy schemes. [source] COSTLY EXTERNAL FINANCE AND INVESTMENT EFFICIENCY IN A MARKET EQUILIBRIUM MODELECONOMIC INQUIRY, Issue 4 2009JÁN ZÁBOJNÍK The corporate finance literature suggests that a financially constrained firm invests less than an identical unconstrained firm. This does not imply that financial frictions cause firms to invest less than in a frictionless economy. When firms compete for investment funds, an increase in financial frictions can lead individual firms to increase their investment levels. A greater than the frictionless level of investment is likely in low-productivity firms, in cash-rich firms, and in firms with cheap external capital. Government programs that make capital cheaper for small firms may lead to lower levels of investment for all firms and decrease efficiency (JEL O16, E22, E44, G20) [source] EQUALITY, INFANCY AND EFFICIENCY IN ALLOCATING INTERNAL RESEARCH FUNDS TO FACULTY MEMBERSECONOMIC PAPERS: A JOURNAL OF APPLIED ECONOMICS AND POLICY, Issue 2 2003AMNON LEVY First page of article [source] RECENT AND FUTURE MANAGEMENT CHANGES IN LOCAL GOVERNMENT: CONTINUING FOCUS ON RATIONALITY AND EFFICIENCY?FINANCIAL ACCOUNTABILITY & MANAGEMENT, Issue 1 2008Henk J. Ter Bogt Dutch municipalities and provinces have recently introduced many changes relating to management control. This paper explores the role of economic and social rationality in the introduction of reforms, and the nature of possible future reforms. Based on interviews with politicians and professional managers and on documents, the paper examines experiences with recent management changes. In addition, it discusses ,change initiating factors'. Budget cuts and trends seem to be such change initiating factors. However, particularly more demanding citizens, increases in voters' volatility and politicians' uncertainty seemed to initiate changes. The paper speculates that in the near future, too, it could be a rational survival strategy for politicians and managers to focus on initiatives that are intended to enhance performance and efficiency. [source] PRIVATIZATION AND EFFICIENCY: FROM PRINCIPALS AND AGENTS TO POLITICAL ECONOMYJOURNAL OF ECONOMIC SURVEYS, Issue 4 2008Alberto Cavaliere Abstract We survey the theoretical literature on privatization and efficiency by tracing its evolution from the applications of agency theory to recent contributions in the field of political economy. The former extend the theory of regulation with incomplete information to address privatization issues, comparing state-owned enterprises with private regulated firms. The benefits of privatization may derive either from the constraints it places on malevolent agents or from the impossibility of commitment by a benevolent government because of incomplete contracts. Contributions dealing with political economy issues separate privatization from restructuring decisions. They either explore bargaining between managers and politicians or analyse the impact of privatization shaped by political preferences on efficiency. The theoretical results regarding the relation between privatization and efficiency do not lead to any definitive conclusion. Privatization may increase productive efficiency when restructuring takes place whereas its effects on allocative efficiency still remain uncertain. [source] EFFECT OF ARTIFICIAL FEEDING ON DIGESTIVE EFFICIENCY, GROWTH AND QUALITIES OF MUSCLE AND OOCYTE OF MATURING ATLANTIC MACKEREL (SCOMBER SCOMBRUS L.)JOURNAL OF FOOD BIOCHEMISTRY, Issue 6 2007KRISNA RUNGRUANGSAK-TORRISSEN ABSTRACT Maturing Atlantic mackerel with and without artificial feeding, kept in sea pens (September to May), showed differences in digestive efficiency (protease activity ratio of trypsin to chymotrypsin), muscle growth (concentrations of RNA, protein, RNA/protein ratio and free amino acids [FAA]) and oocyte quality (trypsin-like specific activity, and concentrations of RNA, RNA/protein ratio and FAA). The artificially fed mackerel had higher body weights (1.7 times) but with less white muscle protein concentration (0.5 time), compared to the control group. Both groups showed higher levels of capacity for protein synthesis in the oocytes than in the white muscle, but it was about two times higher in the artificially fed fish whereas about four times higher in the control group. This indicated that, during maturation, development of oocytes and muscle for growth occurred concurrently in higher growth mackerel, while development of oocytes dominated in slower growth fish. A higher trypsin-like specific activity with higher FAA levels in the oocytes from females fed with an artificial diet, compared to the control group, suggested differences in development and quality between the gametes of the fish with different feedings. PRACTICAL APPLICATIONS The work illustrates differences in digestive efficiency and the quality of growth performance (growth and protein metabolism in muscle and oocytes) in fish with different feedings. The use of various methods for evaluating digestive efficiency and the quality of fish growth performance could provide reasonable information for some important biological differences between fish groups, especially when the number of samples are low. It is more advantageous to apply different methods simultaneously than using growth parameter alone in order to study for precise evaluation of the quality of fish growth performance. The methods are very practical for studying food utilization and growth quality of fish in different environmental conditions and with different behaviors in aquaculture as well as in natural ecosystem where food consumption rate and feeding regime cannot be under control. [source] MODELING HEAT EFFICIENCY, FLOW AND SCALE-UP IN THE COROTATING DISC SCRAPED SURFACE HEAT EXCHANGERJOURNAL OF FOOD PROCESS ENGINEERING, Issue 4 2002ALAN FRIIS ABSTRACT A comparison of two different scale corotating disc scraped surface heat exchangers (CDHE) was performed experimentally. The findings were compared to predictions from a finite element model. We find that the model predicts well the flow pattern of the two CDHE's investigated. The heat transfer performance predicted by the model agrees well with experimental observations for the laboratory scale CDHE whereas the overall heat transfer in the scaled-up version was not in equally good agreement. The lack of the model to predict the heat transfer performance in scale-up leads us to identify the key dimensionless parameters relevant for scale-up. [source] DIGITAL PHOTOGRAPHY IMPROVES EFFICIENCY OF INDIVIDUAL DOLPHIN IDENTIFICATIONMARINE MAMMAL SCIENCE, Issue 1 2003Tim M. Markowitz [source] OPTIONS AND EFFICIENCY IN MULTIDATE SECURITY MARKETSMATHEMATICAL FINANCE, Issue 4 2005Alexandre M. Baptista This paper extends the work of Ross (1976; Q. J. Econ. (90)1, 75,89) to multidate security markets. First, we show that if a primitive security separates states at the terminal date, then there exist multiperiod European options on that security generating dynamically complete markets. Second, we show that if a primitive security conditionally separates states at the terminal date, then there exist multiperiod European options on that security generating generically dynamically complete markets provided that certain conditions hold. Third, we show that there are economies for which the minimum number of multiperiod European options on a primitive security generating generically dynamically complete markets is relatively large. Finally, we show that in these economies, a relatively small number of multiperiod European options on possibly different portfolio strategies of primitive securities generates generically dynamically complete markets. [source] ON OPTIMAL ENVIRONMENTAL TAXATION AND ENFORCEMENT: INFORMATION, MONITORING AND EFFICIENCYNATURAL RESOURCE MODELING, Issue 1 2001CARLOS MARIO GÓMEZ GÓMEZ ABSTRACT. The purpose of the paper is to contribute to the narrowing of the distance between formal theory and practical environmental policy design. We formulate a general and comprehensive theoretical model in order to take into account the different informational and technological problems which characterize the definition and implementation of environmental taxes in a second best world where there also are distortionary taxes. Having formalized these problems, we present a general model which allows us to discuss the existence of efficient and implementable environmental quality objectives and policy instruments, and to analyze many particular cases. [source] FIRM EFFICIENCY AND THE DESTINATION OF EXPORTS: EVIDENCE FROM KENYAN PLANT-LEVEL DATATHE DEVELOPING ECONOMIES, Issue 3 2009Mats GRANÉR D24; F14; L60; O24; O33 Investigating the link between firm efficiency and exports in Kenyan manufacturing, the results show that exporters are more efficient than non-exporters, and that relatively efficient firms self-select into exporting. An important new finding is that only for export markets outside Africa must firms be efficient prior to entry. The probability of exporting to other African countries increases if production is intense in physical and human capital. For export activities outside Africa, firm size is more important. Contrary to many other studies, it is also found that export participation yields learning effects. When testing the hypothesis that the main source of learning effects is trade with developed countries (south,north), as opposed to trade with other developing countries (south,south), yet another new finding is that learning effects only obtain in south,south trade. Therefore, one can conclude that controlling for the destination of exports importantly improves the understanding of the relationship between firm efficiency and exports. [source] TECHNICAL EFFICIENCY AND PRODUCTIVITY POTENTIAL OF COCOA FARMERS IN WEST AFRICAN COUNTRIESTHE DEVELOPING ECONOMIES, Issue 3 2008Joachim Nyemeck BINAM D24; Q12; Q18; R58 This paper uses survey data to examine the technical efficiency and productivity potential of cocoa farmers in West and Central Africa. Separate stochastic frontier models are estimated for farmers in Cameroon, Ghana, Nigeria, and Côte d'Ivoire, along with a stochastic metaproduction frontier to obtain alternative estimates for the technical efficiencies of farmers in the different countries. The mean productivity potential of cocoa farmers is also estimated, by using a decomposition result applied to both the national and the metaproduction frontiers. The determinants of technical efficiency are assessed to identify the reasons for differences across countries. [source] FINANCIAL DEVELOPMENT, ECONOMIC EFFICIENCY, AND PRODUCTIVITY GROWTH: EVIDENCE FROM CHINATHE DEVELOPING ECONOMIES, Issue 1 2006Sylviane GUILLAUMONT JEANNENEY O16; O47; R11 Financial development might lead to productivity improvement in developing countries. In the present study, based on the Data Envelopment Analysis approach, we use the Malmquist index to measure China's total factor productivity change and its two components (i.e., efficiency change and technical progress). We find that China has recorded an increase in total factor productivity from 1993 to 2001, and that productivity growth was mostly attributed to technical progress, rather than to improvement in efficiency. Moreover, using panel dataset covering 29 Chinese provinces over the period from 1993 to 2001 and applying the Generalized Method of Moment system estimation, we investigate the impact of financial development on productivity growth in China. Empirical results show that, during this period, financial development has significantly contributed to China's productivity growth, mainly through its favorable effect on efficiency. [source] PRODUCTIVE EFFICIENCY IN THE IVORIAN MANUFACTURING SECTOR: AN EXPLORATORY STUDY USING A DATA ENVELOPMENT ANALYSIS APPROACHTHE DEVELOPING ECONOMIES, Issue 4 2005KARINE CHAPELLE The African industrial structure is characterized by firm-size heterogeneity with the coexistence of small, if not micro, enterprises in the informal sector and large formal organizations operating with modern technology. In this paper, using the Data Envelopment Analysis production frontier methodology, we investigate the technical efficiency of Ivorian manufacturing firms in four sectors of economic activity: textiles and garments, metal products, food processing, and wood and furniture. Efficiency scores are adjusted to take into account the impact of the external operating environment. These scores are then broken down into three elements: the purely managerial effect, the impact of the scale of production, and a technological effect capturing the potential gain that could result from the adoption of modern technology by small informal organizations. Not only formal activities prove to be more efficient in scaling their production but also, they greatly benefit from their modem technology. [source] NONPARAMETRIC LIKELIHOOD: EFFICIENCY AND ROBUSTNESS,THE JAPANESE ECONOMIC REVIEW, Issue 1 2007YUICHI KITAMURAArticle first published online: 8 FEB 200 Nonparametric likelihood is a natural generalization of parametric likelihood and it offers effective methods for analysing economic models with nonparametric components. This is of great interest, since econometric theory rarely suggests a parametric form of the probability law of data. Being a nonparametric method, nonparametric likelihood is robust to misspecification. At the same time, it often achieves good properties that are analogous to those of parametric likelihood. This paper explores various applications of nonparametric likelihood, with some emphasis on the analysis of biased samples and data combination problems. [source] THE EFFECT OF AUCTION FORMAT ON EFFICIENCY AND REVENUE IN DIVISIBLE GOODS AUCTIONS: A TEST USING KOREAN TREASURY AUCTIONS,THE JOURNAL OF INDUSTRIAL ECONOMICS, Issue 2 2008BOO-SUNG KANG This paper measures the efficiency and revenue properties of the two most popular formats for divisible goods auctions: the uniform-price and discriminatory auction. We analyze bids into the Korean Treasury auctions which have used both formats. We find that the discriminatory auction yields statistically higher revenue. Unlike previous work that uses data from only one format, we are able to compare the efficiency properties of the two formats. We find that the discriminatory auction better allocates treasury bills to the highest value financial institutions. However, the differences in revenue and efficiency are not large because the auctions are very competitive. [source] EFFICIENCY AND PRODUCTIVITY CHANGE IN THE ENGLISH HIGHER EDUCATION SECTOR FROM 1996/97 TO 2004/5*THE MANCHESTER SCHOOL, Issue 6 2008JILL JOHNES In this study we use a distance function approach to derive Malmquist productivity indexes for 112 English higher education institutions (HEIs) over the period 1996/97 to 2004/5. The analysis shows that HEIs have experienced an annual average increase in productivity of 1 per cent. Further investigation reveals that HEIs have enjoyed an annual average increase in technology of 6 per cent combined with a decrease in technical efficiency of 5 per cent. Rapid changes in the higher education sector appear to have had a positive effect on the technology of production but this has been achieved at the cost of lower technical efficiency. [source] FINANCIAL DEVELOPMENT AND PRODUCTIVE EFFICIENCY IN OECD COUNTRIES: AN EXPLORATORY ANALYSIS,THE MANCHESTER SCHOOL, Issue 4 2006PHILIP ARESTIS The recent literature provides evidence for a positive relationship between financial deepening and growth but is quite silent on the exact channels through which it materializes. Theory suggests that production efficiency should be one of those main channels. We attempt to capture this channel by modeling productive efficiency explicitly and constructing efficiency frontiers using data envelopment analysis. We apply this procedure to consider whether financial development creates productive efficiency gains in the industrialized OECD countries. Our results show that financial development contributes to productive efficiency. However, this effect weakens over time during the period under scrutiny. Moreover, we find that the effects of financial deepening on productive efficiency depend on the degree of efficiency already achieved. [source] BANK COMPETITION, CONCENTRATION AND EFFICIENCY IN THE SINGLE EUROPEAN MARKET,THE MANCHESTER SCHOOL, Issue 4 2006BARBARA CASU The deregulation of financial services in the European Union (EU), together with the establishment of the Economic and Monetary Union, aimed at the creation of a level playing-field in the provision of banking services across the EU. The plan was to remove entry barriers and to foster both competition and efficiency in national banking markets. However, one of the effects of the regulatory changes was to spur a trend towards consolidation, resulting in the recent wave of mergers and acquisitions. To investigate the impact of increased consolidation on the competitive conditions of the EU banking markets, we employ both structural (concentration ratios) and non-structural (Panzar,Rosse statistic) concentration measures. Using bank-level balance sheet data for the major EU banking markets, in a period following the introduction of the Single Banking Licence (1997,2003), this paper also investigates the factors that may influence the competitive conditions. Specifically, we control for differences in efficiency estimates, structural conditions and institutional characteristics. The results seem to suggest that the degree of concentration is not necessarily related to the degree of competition. We also find little evidence that more efficient banking systems are also more competitive. The relationship between competition and efficiency is not a straightforward one: increased competition has forced banks to become more efficient but increased efficiency does not seem to be fostering more competitive EU banking systems. [source] FINANCIAL CONSTRAINTS AND TECHNICAL EFFICIENCY: SOME EMPIRICAL EVIDENCE FOR ITALIAN PRODUCERS' COOPERATIVESANNALS OF PUBLIC AND COOPERATIVE ECONOMICS, Issue 1 2010Ornella Wanda Maietta ABSTRACT,:,In this paper, we test the extent to which producers' cooperatives can experience an increase in technical efficiency following a tightening of financial constraints. This hypothesis is tested on a sample of Italian conventional and cooperative firms for the wine production and processing sector, using frontier analysis. The results support the hypothesis that increasing financial pressure can affect positively the cooperatives efficiency. [source] THE RELATIVE EFFICIENCY OF CHARTER SCHOOLSANNALS OF PUBLIC AND COOPERATIVE ECONOMICS, Issue 1 2009Shawna Grosskopf ABSTRACT,:,This analysis compares the technical efficiency of charter school primary and secondary campuses with that of comparable campuses in traditional Texas school districts. Charter schools are hybrids,publicly funded, but not required to meet all the state regulations releant for traditional schools. Student performance is measured using value added on standardized tests in reading and mathematics, and efficiency is measured using the input distance function. The analysis suggests that at least in Texas, charter schools are substantially more efficient than traditional public schools. [source] THE SOCIAL EFFICIENCY OF INSTRUMENTS FOR THE PROMOTION OF RENEWABLE ENERGIES IN THE LIBERALISED POWER INDUSTRYANNALS OF PUBLIC AND COOPERATIVE ECONOMICS, Issue 3 2006Dominique Finon ABSTRACT,:,This paper compares the social efficiency of the two main regulatory instruments used to promote renewable energy sources in electricity generation (RES-E), taking into consideration their role in promoting the preservation of the climate. They are based on a purchase obligation and act either by price (feed-in tariffs) or by quantity (RES-E quotas). In their reference design, the instruments show different performances in several dimensions: market incentives intensity, control of the cost for consumers, safeguards of RES-E investments, and conformity with the new market regime of the electricity industry. The comparison shows that neither instrument offers an optimal solution in each of these dimensions. In particular, the intrinsic qualities of the quotas instrument that are put forward to mandate its adoption by the EU members are overestimated. A government will thus select an instrument in accordance with the relative importance of its objectives: environmental policy versus cost control by market pressure. [source] ASYMPTOTIC EFFICIENCY OF THE BLEST-TYPE TESTS FOR INDEPENDENCEAUSTRALIAN & NEW ZEALAND JOURNAL OF STATISTICS, Issue 3 2008Natalia Stepanova Summary Blest (2000, Aust. N. Z. J. Stat. 42, 101,111) proposed a new measure of rank correlation that is sensitive to discrepancies in the small ranks. This paper investigates the efficiency properties of non-parametric tests for independence based on Blest's correlation coefficient and its modifications. Pitman efficiency comparisons are made with analogous tests existing in the literature. Conditions for Pitman optimality of the Blest-type tests are established. [source] FIRM SIZE AND EFFICIENCY IN THE SOUTH AFRICAN MOTOR VEHICLE INDUSTRY,AUSTRALIAN ECONOMIC PAPERS, Issue 4 2009LILA J. TRUETT The South African motor vehicle industry has historically been considered a critical industry in the South African economy and the target of numerous government policies designed to protect it and/or increase its international competitiveness. This study examines the cost performance of firms in this industry according to their size, using data categorised by output level. The results are consistent with statistically significant economies of scale at the lowest output levels and a cost inefficiency averaging from about seven to nine per cent for all firms. The findings also suggest that all else equal, the smallest firms and the largest firms have lower unit costs than mid-sized firms. While this work suggests that policies that would give incentives for the smallest firms to increase their scale of operations might help to reduce their unit costs, further investigation needs to be done with respect to why firms in the mid-level size categories appear to be less efficient. [source] FOREIGN CAPITAL AND EFFICIENCY IN DEVELOPING COUNTRIESBULLETIN OF ECONOMIC RESEARCH, Issue 4 2008Camilla Mastromarco O47; O57 ABSTRACT This paper uses stochastic frontier methodology to analyse foreign direct investment, imported capital goods and human capital as channels for increased efficiency in less-developed countries. Empirical investigation reveals that developing countries differ with respect to the efficiency with which they use frontier technology. Foreign direct investment and human capital play a significant and quantitatively important role in explaining these differences. [source] Attachment of Amine- and Maleimide-Containing Ferrocene Derivatives onto Self-Assembled Alkanethiol and Alkanedithiol Monolayers: Voltammetric Evaluation of Cross-Linking Efficiencies and Surface Coverage of Electroactive GroupsELECTROANALYSIS, Issue 21 2004Yunfeng Wang Abstract Ferrocene derivatives containing primary amines and maleimide groups were attached covalently onto N -hydrosuccinimidyl (NHS)-terminated alkanethiol self-assembled monolayers (SAMs) and SAMs of alkanedithiol. The surface coverage and efficiencies of the two cross-linking reactions were evaluated with cyclic voltammetry. All the ferrocene derivatives attached onto the alkanethiol or alkanedithiol SAMs exhibit reversible redox waves. The surface coverage of the aminated ferrocene groups was compared to that of N -hydrosuccinimidyl (NHS)-terminated alkanethiol SAM. The covalent attachment of ,-ferrocenylethylamine onto a 11,11,-dithio-bis(succinimidylundecanoate) SAM yielded an efficiency as high as 63.1%. The cross-linking efficiency of this reaction was found to increase with the nucleophilicity of the amino groups. SAMs of longer alkyl chains favor the attachment of a greater number of ferrocene derivatives. As for the Michael-type electrophilic addition between the sulfhydryl groups of the alkanedithiol SAMs and the ferrocenyl maleimide, the cross-linking efficiencies were found to range from 6.5% to 25.7%, depending on the alkanedithiol chain length. The difference in the efficiencies between the two types of cross-linking reactions might be partially attributable to the steric hindrance imposed by the SAMs and the relative sizes of the functional groups. [source] Performance of a full-scale biotrickling filter treating H2S at a gas contact time of 1.6 to 2.2 secondsENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY, Issue 2 2003David Gabriel Emission of objectionable odors is a major problem for wastewater treatment and other processing facilities. Biological treatment is a promising alternative to conventional control methods, such as chemical scrubbing, but historically, biotreatment has always required significantly larger reactor volumes than chemical scrubbers. In this paper, we present several aspects of the operation and performance of a chemical scrubber, retrofitted to operate as a biotrickling filter treating 16,000 m3 h,1 of foul air with the original gas contact time of 1.6 to 2.2 seconds. In continuous operation for more than a year, the biotrickling filter has shown stable performance and robust behavior for H2S treatment, with pollutant removal performance comparable to using a chemical scrubber. Reclaimed water was used as a nutrient source for the process, and to maintain the pH in the biotrickling filter between 1.5 and 2.2. At a gas contact time of 1.6 seconds, H2S removal was in excess of 95% for sustained inlet H2S concentrations as high as 30 ppmv. This corresponds to volumetric elimination rates of 95 to 105 g H2S m,3 h,1. Efficiencies of about 90% were observed under transient conditions at 2.2 seconds gas contact time for inlet concentration peaks up to 60 ppmv. The biotrickling filter also removed significant amounts of reduced sulfur compounds, ammonia, and volatile organic compounds present in traces in the air, which is important in practical applications. Selected experiments, such as intermittent trickling operation and a one-month operation period at neutral pH, are also presented. Results indicate that the intermittent trickling operation does not have a significant effect on H2S removal. However, when operated at neutral pH, biotrickling filter performance clearly decreased, probably due to an excessive chlorine supply to the reactor through the make-up water. The study demonstrates that biotrickling filters can replace chemical scrubbers as a safer, more economical technique for odor control. [source] Do European Primarily Internet Banks Show Scale and Experience Efficiencies?EUROPEAN FINANCIAL MANAGEMENT, Issue 4 2007Javier Delgado G21; O32; O33 Abstract Empirical evidence shows that Internet banks worldwide have underperformed newly chartered traditional banks mainly because of their higher overhead costs. European banks have not been an exception in this regard. This paper analyses, for the first time in Europe, whether this is a temporary phenomenon and whether Internet banks may generate scale economies in excess of those available to traditional banks. Also do they (and their customers) accumulate experience with this new business model, allowing them to perform as well or even better than their peers, the traditional banks? To this end, we have generally followed the same analytical framework and methodology used byDeYoung (2001, 2002, 2005)for Internet banks in the USA although the limitations in the availability of data, as well as the existence of different regulatory frameworks and market conditions, particularly in the retail segment, in the 15 European Union countries have required some modifications to the methodology. The empirical analysis confirms that, as is the case for US banks, European Internet banks show technologically based scale economies, while no conclusive evidence exists of technology based learning economies. As Internet banks get larger, the profitability gap with traditional banks shrinks. To the extent that Internet banks are profitable, European authorities may encourage a larger number of consumers to use this delivery channel, by tackling consumers security concerns. This would allow Internet banks to capture more of the potential scale efficiencies implied in our estimations. [source] The efficacy of air, sound and acoustic bubble screens in deflecting Atlantic salmon, Salmo salar L., smolts in the River Frome, UKFISHERIES MANAGEMENT & ECOLOGY, Issue 1 2002J. S. WELTON Atlantic salmon, Salmo salar L., smolts are vulnerable to entrainment in a variety of man-made structures as they migrate downstream. The ability of acoustic bubble screens to deflect smolts from potential hazards was assessed. Screens were deployed, in turn, across one of the two identical channels through which the millstream of the River Frome flowed and the efficiency of these screen systems was tested by counting smolts by video recording in each channel. It was concluded that these screens deflected a significant number of smolts. Efficiencies were greater at night than in daylight because of smolt behaviour. [source] Improved Photovoltaic Performance of Heterostructured Tetrapod-Shaped CdSe/CdTe Nanocrystals Using C60 InterlayerADVANCED MATERIALS, Issue 44 2009Yanqin Li Photovoltaic (PV) devices based on CdSe/CdTe-C60 active layers, in which the nanocrystal and fullerene (C60) layers work as electron-donor and electron-acceptor/transport layers, respectively, were fabricated. Efficiencies up to 0.62% were reached in the hybrid cells. The PV performance was greatly improved with respect to that of CdSe/CdTe-P3HT- and CdSe/CdTe-based devices, fabricated as reference. [source] | ||||||||||||||||||||||||||||||||||||||||