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81.
Several empirical studies show that investment strategies that favor the purchase of stocks with low prices relative to conventional measures of value yield higher returns. Some of these studies imply that investors are too optimistic about (glamour) stocks that have had good performance in the recent past and too pessimistic about (value) stocks that have performed poorly. We examine whether investors systematically overestimate (underestimate) the future earnings performance of glamour (value) stocks over the 1976 to 1997 period. Our results fail to support the extrapolation hypothesis that posits that the superior performance of value stocks is because investors make systematic errors in predicting future growth in earnings of out–of–favor stocks.  相似文献   
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Forecasting diffusion of new technologies is usually performed by the means of aggregate diffusion models, which tend to monopolize this area of research and practice, making the alternative approaches, like the Box-Jenkins, less favourable choices due to their lack of providing accurate long-term predictions. This paper presents a new methodology focusing on the improvement of the short-term prediction that combines the advantages of both approaches and that can be applied in the early stages of a diffusion process. An application of the methodology is also illustrated, providing short-term forecasts for the world broadband and mobile telecommunications' penetration. The results reveal that the methodology is capable of producing improved one-year-ahead predictions, after a certain level of penetration, as compared to the results of both methods individually. This methodology can find applications to all cases of the high-technology market, where a diffusion model is usually used for obtaining future forecasts. The paper concludes with the limitations of the methodology, the discussion on the application's results and the proposals for further research.  相似文献   
84.
In this project, our topic pertains to examination of market efficiency, employing data from closed-end funds (CEFs) trading in the American stock market. Employing both aggregate and individual data, we examine whether or not moderate market performance is a sufficient condition in order to achieve abnormal returns, in the short-run, through exploitation of discount deviations from its mean value. The main hypothesis tested is that market performance affects the mean-reverting properties of CEFs’ discount. Moderate market performance ensures the mean-reversion of CEFs’ discount and points to cointegration between the share prices of CEFs and their net asset value (NAV). Furthermore, when NAV is identified as the common stochastic trend of the system then, market inefficiency is detected.  相似文献   
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Die Zusammenlegung von Arbeitslosen- und Sozialhilfe hatte unter anderem das Ziel, die Arbeitsanreize für arbeitsf?hige Leistungsempf?nger zu st?rken. Wie sind die Anreizwirkungen zu bewerten? Wirkt der durch Arbeitslosengeld II erreichbare Lebensstandard negativ bei der Entscheidung für eine Arbeitsaufnahme? Werden kinderreiche Familien bei den ALG-II-Leistungen benachteiligt? Dr. Christos Koulovatianos, 35, ist derzeit Visiting-Professor am Lehrstuhl für Geld und Makro?konomie der Goethe Universit?t Frankfurt/Main; Prof. Dr. Ulrich Schmidt, 40, ist Inhaber des Lehrstuhls für Finanzwissenschaft, Sozialpolitik und Gesundheits?konomik an der Christian-Albrechts-Universit?t zu Kiel und t?tig am Institut für Weltwirtschaft; Dr. Carsten Schr?der, 35, ist dort Juniorprofessor. Wir danken Alfred Boss, Stefan Homburg, Harmen Lehment, Tim Lohse, Klaus Schrader, Dennis J. Snower, Jürgen Stehn und Michael Stremlau für hilfreiche Kommentare.  相似文献   
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The objective of this article is to assess the integration of the international skim milk powder (SMP) market. This is pursued using monthly data over 2001 to 2014 from the three principal SMP‐producing regions (the EU, the USA and Oceania) and nonparametric kernel‐based and time‐varying copulas. The empirical results point to a strong and an increasing degree of overall price co‐movement and to statistically significant probabilities for joint price crashes and booms. While the EU and Oceania have been the regions with the highest degree of integration, the USA has been catching up with them.  相似文献   
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This paper explores the role of trade instruments in globally efficient climate policies, focusing on whether or not some form of border tax adjustment (BTA) is warranted when carbon prices differ internationally. The analysis shows that, while there is no case for BTA when all instruments can be freely deployed, Pareto-efficiency does require a form of BTA when carbon taxes in some countries are constrained: its purpose then is to partly counteract the impact on emissions of inappropriate carbon pricing there, or, equivalently, to undo the trade distortions such pricing creates. The required form of BTA is generally complex, but a special case is identified in which it optimally has the simple structure envisaged in practical policy discussions. It is also shown that the efficiency case for BTA depends critically on whether climate policies are pursued by carbon taxation or by cap-and-trade.  相似文献   
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During the recent Great Recession (2008–2018), Greece has become the prototype example of the implementation of austerity policies in Europe. Contrary to public discourse, these austerity policies were complemented by substantial labour market reforms that promoted employment and wage flexibility. This article aims to present a theory-driven understanding of the implementation and the effects of these reforms. For this purpose, we employ a qualitative study consisting of semi-structured interviews with 50 labour market experts—government officials and labour lawyers, academics, labour union representatives and employer association representatives. Using Thelen's framework on the Varieties of Liberalization, we conclude that, contrary to the initial aims of the reforms, Greece followed a trajectory of direct deregulation, reducing considerably the level of both coordination between employers and workers, and coverage of employment protection. The interviews show that the dismantling of collective bargaining system was the most decisive move in this path.  相似文献   
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