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1.
Without guaranteed compensation, granted by the German Renewable Energy Sources Act (Erneuerbare Energien Gesetz/EEG), biogas plants compete with all other plant types on the market for electrical energy. However, exchange-based electricity products do not currently permit an economically viable operation of biogas plants owing to their cost situation.  相似文献   
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In this paper we argue that theory, method, methodology, and knowledge gains in qualitative field studies are intertwined through the ongoing hypothesis development in the field. We develop our argument through a discussion of specific qualitative field studies in management accounting. We emphasise in particular the distinctive role of theory in qualitative research as relating to expression of a subjective reality more than clarification of an objective one. In considering this subjectivity we discuss the ways in which the doing of qualitative research brings to bear discipline on the researcher allowing us to assess the trustworthiness of their accounts. The intention is to develop a more appropriate basis for judging the plausibility of qualitative field studies than notions borrowed from positivistic methodology.  相似文献   
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The Global Competitiveness Report of the World Economic Forum examines the relative competitiveness of economies on a broad basis of microeconomic and macroeconomic indicators. The following discussion uses the results of the Global Competitiveness Report 2004–2005 and investigates how the relative competitiveness of Germany and other European countries has developed over the recent past.  相似文献   
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I see a big growth potential for the US and Chinese biotechnology partnerships for the next years. US biotechnology sector is generating already more than $50 billion dollars. Chinese bio-technology will grow in the next 20 years to more than 11 billion yuan (US 1.33 billion) annually.  相似文献   
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This article will examine the learning curve and its potential impact on the health care industry. Although the learning curve has traditionally been applied to the manufacturing industry, a labor-intensive industry like health care is a prime candidate for the benefits of the learning curve. Specifically, we will look at past research on the learning curve and discuss what effects learning might have on health care costs and outcomes in the current health care environment.  相似文献   
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The purpose of this study is to examine how scholarly research on luxury brand marketing has evolved in the twenty-first century. This literature review focuses on 242 articles related to luxury marketing. The contributions of these articles are thoroughly analyzed, combining qualitative interpretations with bibliometric citation analysis that uses a social network of referrals. This study identifies the most influential universities, research outlets, and scholars in the recent evolution of luxury marketing research. The study also identifies current and future research streams, geographic scope, and underlying research methodologies, and it reveals the most frequently used theories and prominent constructs in luxury marketing research. There are few studies that have examined the literature review of the luxury marketing discipline. No previous research has investigated luxury branding by means of a bibliometric analysis and qualitative assessment within such a large scope. Building on the results of this analysis, researchers can target their studies precisely and, thus, increase the contributions of their empirical research.

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Decisions in Economics and Finance -  相似文献   
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This paper examines the effect time-to-maturity has on how sensitive futures prices are to news flows. Unscheduled daily news flows that relate to the underlying asset of a futures contract are related to the daily realized volatility of futures to calculate a price-news sensitivity ratio. The observed pattern follows an inverted U-shape relationship and has a bearing on whether the maturity effect will be noticeable in a futures contract. This paper also shows that by examining the peak-to-maturity of the price sensitivity to news pattern, it is possible to better identify which contracts are more likely to yield higher volatility.  相似文献   
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