Drei herausragende Controller mit der Ehrendoktorwürde der European Business School ausgezeichnet

Ohne Zusammenfassung     

Multi-asset portfolio optimization and out-of-sample performance: an evaluation of Black–Litterman,mean-variance,and naïve diversification approaches

The Black–Litterman model aims to enhance asset allocation decisions by overcoming the problems of mean-variance portfolio optimization. We propose a sample-based version of the Black–Litterman model and implement it on a multi-asset portfolio consisting of global stocks, bonds, and commodity indices, covering the period from January 1993 to December 2011. We test its out-of-sample performance relative to other asset allocation models and find that Black–Litterman optimized portfolios significantly outperform naïve-diversified portfolios (1/N rule and strategic weights), and consistently perform better than mean-variance, Bayes–Stein, and minimum-variance strategies in terms of out-of-sample Sharpe ratios, even after controlling for different levels of risk aversion, investment constraints, and transaction costs. The BL model generates portfolios with lower risk, less extreme asset allocations, and higher diversification across asset classes. Sensitivity analyses indicate that these advantages are due to more stable mixed return estimates that incorporate the reliability of return predictions, smaller estimation errors, and lower turnover.     

Schumpeter und die Krise

Schumpeters Werk ist für die aktuelle Finanzkrise in zweifacher Hinsicht bedeutend. Zum einen basiert auf seinen Vorstellungen das Missverst?ndnis, dass Finanzm?rkten eine Tendenz zum Gleichgewicht innewohnt. Zum anderen hat Schumpeter schon 1950 darauf hingewiesen, dass sich zunehmend die wirtschaftlichen und politischen Sph?ren der Gesellschaft und auch die jeweiligen Verantwortlichkeiten vermischen. Die daraus entstehenden Gefahren sind bei der Bew?ltigung der Krise zu beobachten. Professor K?rner spricht sich hier für eine Theorie der Wirtschafts- und Gesellschaftsordnung aus, die klare Ma?t?be für wirtschaftspolitisches Handeln entwickelt.     

制造企业服务业务开发中认知及行为因素研究

面对越来越低的产品边际收益和越来激烈的市场竞争,制造企业不得不寻求新的利润空间,服务业务的开发无疑是一条有效的途径.本文前期调查研究中发现目前制造企业对服务的有效投资以及服务投资的整体收益水平仍很低,就此现象本文对21家机械设备制造企业进行了跟踪调查,结合相应的理论分析对制造企业服务业务开发中的认知及行为因素进行了系统研究,分析过程依据服务投资驱动、服务目标设定及服务目标实施的技术路线来进行.     

Corporate foresight and innovation management: A portfolio-approach in evaluating organizational development

The transition from a traditional industry-driven economy to a knowledge-based economy requires new concepts and methods for companies to sustain competitive advantage. Here, academia has identified corporate foresight and innovation as key success factors. While, content-wise, the contribution of futures research methods to the innovation process has already been researched, this study strives to explore the status quo of organizational development stages of both concepts. To do so, we developed a portfolio-approach, the so-called ‘Future-Fitness-Portfolio’, which enables companies to qualitatively compare amongst others and identify organizational improvement potential. In addition, we conducted expert interviews to explore future organizational development trends in corporate foresight and innovation management. As our research revealed, five strategic clusters can be identified within the portfolio. Consequently, we propose specific strategies for each individual cluster. We conclude that there will be two main organizational development trends for corporate foresight and innovation management in the future: in traditional industries with conventional business models and long product-life-cycles, companies will follow a different development path than companies in dynamic industries with innovative business models and short product-life-cycles.     

Islamic Banks and Financial Stability: An Empirical Analysis

The relative financial strength of Islamic banks is assessed empirically based on evidence covering individual Islamic and commercial banks in 19 banking systems with a substantial presence of Islamic banking. We find that (a) small Islamic banks tend to be financially stronger than small commercial banks; (b) large commercial banks tend to be financially stronger than large Islamic banks; and (c) small Islamic banks tend to be financially stronger than large Islamic banks, which may reflect challenges of credit risk management in large Islamic banks. We also find that the market share of Islamic banks does not have a significant impact on the financial strength of other banks.     

Theme: Whole of government accounting— international trends

This article reconstructs the literature on corporate turnaround in terms of its recurring features. It then tests these against the experience of four very different cases of the turnaround or attempted turnaround of public and non-profit organizations. It concludes that while some concepts from the corporate literature usefully highlight important aspects, other critical complicating features of what is needed to achieve a turnaround in public and non-profit contexts would be overlooked or poorly treated if the situation were considered simply in these terms. These complicating features deserve the attention both of practitioners and researchers.     

Separate or Integrate? Assessing the Impact of Separation Between Product and Service Business on Service Performance in Product Manufacturing Firms

Purpose: Investigating how the separation of the product and service business mediates the effect of management's commitment to the service strategy on service performance in product manufacturing firms.

Methodology: The authors surveyed 216 European manufacturers in the high-value durable equipment industry moving into the service business. After assessing adequacy of measurement scales, the authors tested statistically for mediation. Their results hold when replicating the study using a structural equation modeling approach and while testing for common method biases.

Findings: The authors find evidence that the creation of a separate service organization, organized as a profit center, has a significant positive mediating effect between managerial commitment and the services' financial performance. Although separation also has a positive mediating effect between commitment and non-financial performance, organizing services as a profit center had a negative effect on the service's non-financial indicators.

Research Limitations: Research limitations include (a) a sample limited to German-speaking firms in the high-value durable equipment industry, (b) measurements based on self-reported managerial perceptions of service performance, and (c) conceptualization of service as a single strategic response.

Practical Implications: Although the complementarity between products and services is high in the market, the authors' research suggests few synergies to leverage their integration inside the organization. Accordingly, management should, at least in transition efforts similar to the ones included in this sample, look into creating a separate and distinct service organization.

Value/Contribution: This research was driven by practical concern on how to organize service operations in a manufacturing firm. Initial framing of the research through the creation of the construct of separation of product and service business was used.