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71.
Dr. Christoph Goebel Prof.?Dr. Hans-Arno Jacobsen Victor del Razo Mag.? Christoph Doblander Dipl.-Ing. Jose Rivera Dipl-Inform.?Wirt Jens Ilg Dr. Christoph Flath Prof.?Dr. Hartmut Schmeck Prof.?Dr. Christof Weinhardt Dipl-Inform. Daniel Pathmaperuma Prof.?Dr. Dr.?h.?c. Hans-Jürgen Appelrath Prof.?Dr. Michael Sonnenschein Prof.?Dr. Sebastian Lehnhoff Prof.?Dr. Oliver Kramer Prof.?Dr. Thorsten Staake Prof.?Dr. Elgar Fleisch Prof.?Dr. Dirk Neumann Prof.?Dr. Jens Strüker Dr. Koray Erek Prof.?Dr. Rüdiger Zarnekow Dr. Holger Ziekow Prof.?Dr. J?rg L?ssig 《Business & Information Systems Engineering》2014,6(1):25-31
Due to the increasing importance of producing and consuming energy more sustainably, Energy Informatics (EI) has evolved into a thriving research area within the CS/IS community. The article attempts to characterize this young and dynamic field of research by describing current EI research topics and methods and provides an outlook of how the field might evolve in the future. It is shown that two general research questions have received the most attention so far and are likely to dominate the EI research agenda in the coming years: How to leverage information and communication technology (ICT) to (1) improve energy efficiency, and (2) to integrate decentralized renewable energy sources into the power grid. Selected EI streams are reviewed, highlighting how the respective research questions are broken down into specific research projects and how EI researchers have made contributions based on their individual academic background. 相似文献
72.
Ann-Kristin Knapp Thorsten Hennig-Thurau Juliane Mathys 《Journal of the Academy of Marketing Science》2014,42(2):205-221
The valuation of extension rights is critical for entertainment brands such as bestseller books. Building on brand extension research, we argue that accounting for the reciprocal spillover effect (i.e., the influence of an extension product on a parent brand) is important for determining the value of extension rights. We develop a contingency model of the reciprocal spillover effect for category extensions of entertainment products that are characterized by short life cycles and satiation effects. In the discussion of moderating factors, we pay particular attention to the new concept of backward integration, which accounts for the reaction of a parent to the introduction of an extension. Using data from all 446 literature adaptations produced for the big screen and theatrically released in North American theaters between 1998 and 2006, we provide evidence that extension success and marketing support impact the sales of the parent book and for several postulated moderating effects, including those of backward integration. Through simulation analyses, we demonstrate how considering the reciprocal effect in the managerial decision-making process can help entertainment managers to avoid biased estimations of category extension rights. 相似文献
73.
Thorsten M. Egelkraut Philip Garcia Bruce J. Sherrick 《American journal of agricultural economics》2007,89(1):1-11
Using a flexible method, we develop the term structure of volatility implied by corn futures options with differing maturities, and evaluate its ability to predict subsequent realized price volatility. The implied forward volatilities anticipate realized volatility well. For the nearby interval, the implied forward volatilities provide unbiased forecasts, and are superior to forecasts based on historical volatilities. For more distant intervals, early-year options predict the direction and magnitude of future volatility changes about as well as a three-year moving average and better than a naïve forecast. However, later-year options display less forecast power in part due to reduced trading activity. 相似文献
74.
75.
Thorsten Koeppl 《Journal of Economic Theory》2008,142(1):233-246
We investigate the role of settlement in a dynamic model of a payment system where the ability of participants to perform certain welfare-improving transactions is subject to random and unobservable shocks. In the absence of settlement, the full information first-best allocation cannot be supported due to incentive constraints. In contrast, this allocation can be supported if settlement is introduced, provided that it takes place with a sufficiently high frequency. 相似文献
76.
Globally evolutionarily stable portfolio rules 总被引:2,自引:0,他引:2
Igor V. Evstigneev Thorsten Hens Klaus Reiner Schenk-Hopp 《Journal of Economic Theory》2008,140(1):197-228
The paper examines a dynamic model of a financial market with endogenous asset prices determined by short-run equilibrium of supply and demand. Assets pay dividends that are partially consumed and partially reinvested. The traders use fixed-mix investment strategies (portfolio rules), distributing their wealth between assets in fixed proportions. Our main goal is to identify globally evolutionarily stable strategies, allowing an investor to “survive,” i.e., to accumulate in the long run a positive share of market wealth, regardless of the initial state of the market. It is shown that there is a unique portfolio rule with this property—an analogue of the famous Kelly rule of “betting your beliefs.” A game theoretic interpretation of this result is given. 相似文献
77.
78.
Meek and Thomas (2004) call for research on the continued relevance of ‘rediscovered’ dichotomous accounting classifications. We provide such evidence by examining how developments surrounding the ‘IAS Regulation’ (1606/2002) influenced international differences in accounting systems in the European Union. Since a sufficient time series of actual post-2005 International Financial Reporting Standards (IFRS) reporting practice is not yet observable, we propose an initial re-classification of accounting systems based on evidence available to date, that is, the degree of implementation of the IAS Regulation in the Member States. Consistent with Nobes (1998), we find that the degree of public accountability to outside investors (the ‘public/private’ criterion) is becoming the primary differentiator for accounting systems in Europe, surpassing country-level variables such as legal system and culture. The distinction between consolidated and individual financial statements is the second emerging differentiator. While consolidated accounting is becoming more uniform across countries, cross-country cultural differences are most likely to persist in individual accounting. Based on our analysis we highlight two important areas of future research beyond the consolidated financial statements of listed firms (e.g. Nobes, 2005; Schipper, 2005). First, at the country level, the interaction of IFRS and individual financial statements will need to be reassessed. In addition, research could help introduce a degree of differentiation into financial reporting regulation for unlisted firms, because these firms are not a homogeneous group. Also, the convergence of national GAAP systems with IFRS will benefit from fresh research insights. Second, at the firm level, future research could analyze the extent to which the determinants and consequences of IFRS adoption, an area well researched for publicly traded firms (e.g. Cuijpers and Buijink, 2005), generalize to unlisted firms. Such research will help detect emerging patterns of accounting systems within an international context. It will generate insights into the disconnect of consolidated accounts from national influences, the degree of uniformity of consolidated accounts among international firms, the continued relevance of traditional classifications of international accounting systems for individual accounts and accounts of unlisted companies, and the convergence of national standards with IFRS. 相似文献
79.
This study examines the long-run relationship between monetary policy and dividend growth in Germany. For this purpose, cointegration is tested for between both variables in the period 1974 to 2003. However, problems related to spurious regression arise from the mixed order of integration of the series used, from mutual causation between the variables and from the lack of a long-run relationship among the variables of the model. These problems are addressed by applying the bounds testing approach to cointegration in addition to a more standard long-run structural modelling approach. In principle, both procedures are capable of dealing with the controversial issue of the exogeneity of monetary policy vis-à-vis dividend growth. However, the structural modelling approach still leaves a certain degree of uncertainty about the integration properties of the interest rate and the dividend growth. Hence, one feels legitimized to refer to the bounds testing procedure and to conclude that in the longer term short-term rates drive stock returns but not vice versa. 相似文献
80.
Monetary policies of the European Central Bank (ECB) and US Fed can be characterized by ‘Taylor rules’, that is both central banks seem to be setting rates by taking into account the ‘output gap’ and inflation. We also set up and tested Taylor rules which incorporate money growth and the euro–dollar exchange rate, thereby improving the ‘fit’ between actual and Taylor rule based rates. In general, Taylor rules appear to be a much better way of describing Fed policy than ECB policy. Simulations suggest that the ECB's short-term interest rates have been at a much lower level in the last 2 years compared with what a Taylor rule would suggest. 相似文献