21,313 research outputs found

    Service cheques in Europe - a model for Germany? Employment effects and macro-economic costs: five scenarios

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    In the mid-nineties, near all european governments look almost desperately for a panacea against sluggish growth and high unemployment. Since this problem concerns mainly low-skilled workers, the creation of low-profile jobs in the personal service sector still seems to be one of the most promising solutions. After a long period of scepticism dominating economic thinking about the growth potential of this sector, a renaissance of the service-idea is taking place at the moment. The so called service cheque finds itself at the centre of this new policy approach. Its objective is twofold: to subsidize demand and to reduce the cost of labour. After France and Belgium, Germany is the third country introducing it at a large scale. The findings of this essay back up the opinion that direct welfare benefits, promoting the use of service-cheques, are preferable to those that rely on tax-relief incentives. On the other hand, the idea to provide households with a special welfare benefit in terms of service-cheques could prove risky once the system's high elasticity of output provokes uncontrollable budget deficits. Alternative models should therefore also be considered. -- Zu Beginn der neunziger Jahre suchen alle europĂ€ischen Regierungen beinahe hĂ€nderingend nach neuen PolitikansĂ€tzen zur Förderung eines beschĂ€ftigungsintensiven Wachstums. Da vor allem geringer qualifizierte Arbeitnehmer von konjunktureller und zunehmend struktureller Arbeitslosigkeit betroffen sind, erscheint die Schaffung neuer ArbeitsplĂ€tze im personennahen Dienstleistungssektor die erfolgversprechendste Lösung zu sein. Nachdem die traditionelle Wirtschaftstheorie fĂŒr lange Jahre dieser Idee eine Absage erteilt hat, erlebt der Dienstleistungsgedanke zur Zeit eine Renaissance. Im Mittelpunkt dieser Politik steht der sogenannte Dienstleistungsscheck. Nach Frankreich und Belgien ist Deutschland das dritte Land, welches dieses Instrument in großem Stil einsetzt. Die Ergebnisse dieser Studie unterstĂŒtzen die Ansicht, daß direkte Transferleistungen besser dazu geeignet sind, den personennahen Dienstleistungssektor zu fördern, als Systeme, die Steuererleichterungen verwenden. Andererseits zeigt die vorliegende Analyse, daß Transfermodellen eine hohe Output-ElastizitĂ€t innewohnt, welche das Risiko von unkontrollierbaren Einbussen öffentlicher Gelder bei gleichzeitig schwachen employmentseffekten beinhalten. Alternativmodelle sollten deshalb ebenso berĂŒcksichtigt werden.

    Stock price responses on the German suspension of genetically modified maize

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    This note investigates the effect of the German governments' decision to suspend the cultivation of genetically modified maize on the stock returns of involved companies. Moreover, the first announcement to investigate a ban as well as a court decision rejecting Monsanto's lawsuit against the suspension are considered. This study is motivated by the expectation that these decisions have consequences beyond the small German market for genetically modified maize. An event study is used to evaluate the economic impacts on stock returns of Monsanto, Bayer and BASF. We find slight evidence that stock prices of Monsanto and BASF responded negatively to the German suspension of genetically modified maize.Event study, Bt maize, Monsanto, Bayer, BASF, GM crops

    Evidence of slowing yield growth – the example of Swiss cereal yields

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    We analyze trends in yield growth and yield variability of barley, maize, oats, rye triticale and wheat in Switzerland from 1961 to 2006. In contrast to linear trends in cereal yield growth that are usually assumed for Europe, cereal yields have leveled off due to widespread extensive cereal production in Switzerland since the early 1990’s. This might also indicate prospects for future crop yield developments in other countries if similar farming practices are widely-used. Even though we find increasing yield variability for barley and rye, no increasing trend in relative yield variability (relative to yield levels) is found for all analyzed crops. Furthermore, this study emphasizes the importance of robust regression methods to ensure reliable results in trend estimation.climate change, crop yield development, detrending, robust regression, Switzerland, crop yield variability, agri-environmental policy

    A direct cerebello-telencephalic projection in an electrosensory mormyrid fish

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    After injections of the posterior part of the lateral zone of the area dorsalis telencephali (Dlp) with either horseradish peroxidase or the newly available carbocyanine dye DiI, efferent cells were labeled in the valvula cerebelli of the mormyrid fish,Gnathonemus petersii. This may be a unique connection for this group of electrosensory teleosts, since no other vertebrate has ever been reported before to have a direct cerebello-telencephalic projection

    Nuclear systems in space? Does/will the public accept them?

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    Public attitudes toward the use of nuclear energy on earth and in space are discussed. Survey data are presented which show that the public believes nuclear energy should play an important role in our energy supply. However, based on broad attitude research, there should be no expectation that the public will accept or support the use of nuclear energy unless it meets special needs and offers special and significant benefits. It is proposed that a public information program be adopted that results in getting recognition and support for the space program broadly and for the missions that benefit substantially from or require nuclear energy for their accomplishment

    Poor people's knowledge : helping poor people to earn from their knowledge

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    How can we help poor people to earn more from their knowledge rather than from their sweat and muscle? This paper draws lessons from projects intended to promote and protect the innovation, knowledge, and creative skills of poor people in poor countries, particularly to improve the earnings of poor people from such knowledge and skills. The international community has paid considerable attention to problems associated with intellectual property that poor countries buy-such as the increased cost of pharmaceuticals brought on by the WTO's agreement on the Trade Related Aspects of Intellectual Property (TRIPS). This paper is about the other half of the development-intellectual property link. It is about the knowledge poor people own, create, and sell rather than about what they buy. The paper calls attention to a broad range of poor people's knowledge that has commercial potential. It highlights the incentives for and concerns of poor people-which may be different from those of corporate research, northern nongovernmental organizations, or even entertainment stars from developing countries who already enjoy an international audience. The studies find that increased earnings is sometimes a matter of poor people acquiring commercial skills. Legal reform, though often necessary, is frequently not sufficient. Moreover, the paper concludes that the need for novel legal approaches to protect traditional knowledge has been overemphasized. Standard instruments such as patents and copyrights are often effective. Rather than legal innovation, there is a need for economic and political empowerment of poor people so that they have the skills to use such instruments and the influence to insist that institutional structures respond to their interests. Finally, the paper concludes that there is minimal conflict between culture and commerce. There are many income-earning expressions of culture, and it is incorrect to presume that expressions of culture must always be income-using.Cultural Heritage&Preservation,Environmental Economics&Policies,Arts&Music,Public Health Promotion,Cultural Policy,Environmental Economics&Policies,Cultural Heritage&Preservation,Arts&Music,Cultural Policy,Health Monitoring&Evaluation

    ACT to improve ICT use for learning: a synthesis of studies of teacher confidence in using ICT in two Queensland schooling systems

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    A review of the literature about student use of ICT and the impact of ICT use on learning reveals a complexity of rationales and terminology that underwrite ICT initiatives; various dimensions and stages of integration; inherent methodological difficulties; obstacles to integration such as teacher ICT confidence, expertise and beliefs about the potential for ICT to make a difference to student learning; teacher professional development; school technological infrastructure and support; and the need for ICT leadership (Jamieson-Proctor, Burnett, Finger, & Watson, 2006). This paper investigates the overarching research question - Are ICT initiatives having the desired impact on teaching and learning in schools? It provides a synthesis of the results of recent investigations by us in Queensland State and Catholic schools involving 2652 teachers from 168 schools across the two systems. Significant statistical findings that link teachers’ confidence in using ICT with students, to the quantity and quality of students’ use of ICT for learning are highlighted. The findings support the hypothesis that current ICT initiatives are having less than the desired result in both Queensland systems. The paper concludes with a call for Australia-wide research to unpack and address the factors, such as teacher confidence, that are currently constraining the use of ICT within Australian schooling systems

    Classical and quantum satisfiability

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    We present the linear algebraic definition of QSAT and propose a direct logical characterization of such a definition. We then prove that this logical version of QSAT is not an extension of classical satisfiability problem (SAT). This shows that QSAT does not allow a direct comparison between the complexity classes NP and QMA, for which SAT and QSAT are respectively complete.Comment: In Proceedings LSFA 2011, arXiv:1203.542
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