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51.
In the early 1990s the World Bank launched the Regional Programon Enterprise Development (RPED) in several African countries,a key component of which was to collect data on manufacturingfirms. The data sets built by these and subsequent enterprisesurveys in Africa generated considerable research. This articlesurveys the research on the African business environment, focusingon risk, access to credit, labor, and infrastructure, and onhow firms organize themselves and do business. It reviews theresearch on enterprise performance, including enterprise growth,investment, and exports. The article concludes with a discussionof policy lessons. 相似文献
52.
Estimation of the non-linear Constant Elasticity of Scale (CES) function is generally considered problematic due to convergence problems and unstable and/or meaningless results. These problems often arise from a non-smooth objective function with large flat areas, the discontinuity of the CES function where the elasticity of substitution is one, and possibly significant rounding errors where the elasticity of substitution is close to one. We suggest three (combinable) solutions that alleviate these problems and improve the reliability and stability of the results. 相似文献
53.
Bernt Arne Ødegaard 《Finance Research Letters》2009,6(2):56-72
While the hypothesis that ownership concentration can affect the value of a company has seen a lot of empirical study, little light has been shed on a complementary problem, that these concentrated owners have a cost of their position due to an undiversified portfolio. Using a unique data set of the actual diversification of all Norwegian equity owners, we show that the largest owners of a corporation in fact have very undiversified equity portfolios, and that such owners have significant costs to their concentrated portfolios. At the level of risk of a benchmark portfolio, if they were to move from their present portfolio composition in risky assets to a well diversified portfolio, their returns would have increased by about 13 percentage points in annual terms. We ask whether this cost can be explained by estimated benefits of ownership concentration (private benefits), and show that extant estimates of private benefits are too low to offset our cost estimates. 相似文献
54.
Arne Freya Zillich Claudia Riesmeyer Melanie Magin Kathrin Friederike Müller Senta Pfaff-Rüdiger Liane Rothenberger Annika Sehl 《Publizistik》2016,61(4):393-411
Values and norms as research topics are central theoretical and empirical constructs in communication studies and are also used to substantiate research questions or to interpret results. Despite the relevance of values and norms, a respective debate within the discipline has been neglected so far. It is a challenge to discuss the values and norms of our discipline and to initiate an exchange of the societal relevance of one’s own research. The network “Values and norms as research objects and guiding principles in communication research”, funded by the German Research Foundation (DFG), makes a contribution to this by systematically analyzing values and norms in communication studies and by critically reflecting them. Therefore, the paper proposes to operationalize values and norms as “ought-statements”. Ought-statements either describe a situational state that is explicitly evaluated or address a desirable state. Three elements of an ought-statement are identified, which are coded in a multistage content analysis. The operationalization of norms and values as ought-statements allows not only to examine already known values and norms, but also to assess all possible values and norms, to assess the change of values and norms more validly in long-term studies, and to assess those constructs that are labeled as norms or values by the researchers themselves. 相似文献
55.
Zusammenfassung Das deutsche Modell der Beziehungen zwischen Arbeitgebern und Arbeitnehmern innerhalb eines Unternehmens — vor allem die betriebliche
Mitbestimmung — stand lange Zeit in der Kritik, w?hrend das anglo-amerikanische Modell als überlegen angesehen wurde. Welches
Arbeitsbeziehungsmodell w?hlen deutsche und amerikanische Unternehmen in einem in Hinblick auf die Ausgestaltung der Arbeitsbeziehungen
freizügigen Umfeld, wie es in Gro?britannien herrscht? Wie wirkt sich die Wahl des Modells auf Arbeitsproduktivit?t und Profi
tabilit?t der Tochterunternehmen aus?
Prof. Dr. Arne Heise, 48, lehrt Volkswirtschaftslehre an der Universit?t Hamburg und an der Izmir Economics University, Türkei;
Prof. Dr. Heinz Tüselmann, 49, lehrt International Business an der Manchester Metropolitan University; Prof. Dr. Frank McDonald,
58, lehrt International Business an der University of Bradford; und Matthew Allen, 38, ist Lecturer an der Manchester Business
School.
Prof. Dr. Arne Heise, 48, lehrt Volkswirtschaftslehre an der Universit?t Hamburg und an der Izmir Economics University, Türkei;
Prof. Dr. Heinz Tüselmann, 49, lehrt International Business an der Manchester Metropolitan University; Prof. Dr. Frank McDonald,
58, lehrt International Business an der University of Bradford; und Matthew Allen, 38, ist Lecturer an der Manchester Business
School.
Dieser Aufsatz fasst die Ergebnisse eines von der Hans-B?ckler-Stiftung gef?rderten Projektes „Employee Relations and Firm
Performance: A Comparison of German and US Multinational Companies in the United Kingdom“ zusammen. 相似文献
56.
目的 通过对中国与挪威两国高等学校学生对”面子”认知与理解的调查与分析,获得两国文化背景下对“面子”概念的理解及对“丢面子”程度上的认知有无差异。方法 以131名两国大学生为调查对象,采用问卷调查方法。结果 对脸面的理解及认知与文化有明显相关;与性别有无相关。结论 中国挪威两国不同的文化背景对“丢面子”的理解与感知在程度上有影响。然而,面子是一个具有文化普遍性的概念,从调查结果可知,在某些问题上,挪威学生对丢面子的感知也比较强烈。 相似文献
57.
Arne Heise 《Empirica》2002,29(4):319-337
It is hardly surprising that government budgets have always been widely debated inboth the political and academic arenas as public finances in general, and the budgetin particular, reflect the political and ideological colour of the government whichruns the state. No less inevitable are academic debates on budgetary issues giventhat economics is a multi-paradigmatic science. This background makes all the moremysterious the current complete consensus on the need for budgetary consolidationand the overwhelming acceptance of the `balanced budget' principle in politics as wellas in academic economics. In the paper, this position is questioned by producing a simple model of optimal public debt, sustainable deficits and optimal budgetary consolidation. Different possible trajectories of fiscal restriction and expansion – based on a Post-Keynesian and Rational Expectations paradigm alternatively – are then being empirically tested by comparing the German and British historical accounts of public finances over the past three decades. 相似文献
58.
59.
Recently, researchers have begun to recognize that the nature of jobs, the workplace environment, and more generally, the culture of the workplace can have a significant impact on the ability of workers to balance their work and family lives. This article examines the effect of high-performance work practices, job characteristics, and the work environment on workers' views about whether the company helps them balance work and family. Using data from a survey of workers across three manufacturing industries, we show that a high-commitment environment—characterized by high-performance work practices, intrinsically rewarding jobs, and understanding supervisors—positively influences employees' perceptions that the company is helping them achieve this balance. This article reinforces the view that helping workers balance work and family responsibilities is not just a matter of benefits and formal family-friendly policies. Rather, it also depends on the characteristics of jobs within the business enterprise. 相似文献
60.
This paper attempts to contribute to one of the major aspects of international research agenda in agroforestry. A general framework is developed in this paper to capture the dynamic interactions of various components of agroforestry system. Using a multi-seasonal model of agroforestry, the competition among the system components in resource and input use and the trade-offs between different outputs of agroforestry system are analyzed. Policy implications for multi-disciplinary research are derived. It is argued that quantifying the potential benefits of agroforestry system requires reformulation of existing economic methods of analyzing agroforestry technology to contribute to the fuller understanding of the dynamic interactions among its various components. 相似文献