Diversified behavioral portfolio as an alternative to Modern Portfolio Theory

The traditional mean–variance approach has been complemented by alternative theories that use risk measures different from standard deviation of returns or involve additional distributional features of returns like skewness and kurtosis. We propose a portfolio choice model that combines different distributional characteristics of the returns in the decision-making making process, considering preferences of investors which are modeled as non-statistical uncertainties of investors using fuzzy theory. We use 20 stocks of the S&P500 from January 2013 to December 2017. We assess the obtained portfolios’ performance, and the diversified behavioral portfolios outperform than the mean–variance portfolio. This methodological proposal can be seen as a strong managerial tool to make investment portfolio decisions.     

Assessment and selection of management consultants: A comparative cognitive study between small- and large-scale companies

This paper explores alternative ways of evaluating and ultimately hiring a generalist consultancy for short- and medium-term projects, and how this is shaped by the size of the clients’ company. What buying factors do managers of small and large firms have in mind when hiring consultants for their projects?Instead of employing surveys incorporating predefined buying factors based on what the researchers think would be important, a cognitive mapping methodology - the repertory grid technique - is applied to investigate the underlying phenomena. Using the repertory grid technique to draw mental models is a novel research technique within the supply management field. Recent behavioral supply chain management research found the behavior of managers to be critically influenced by mental models: the lenses through which managers perceive, simplify and interpret the world.Results show differences between the buying factors used in small- and large-scale companies: managers of large companies are more ‘reputation and outcome-oriented’ and managers of small businesses are more concerned with ‘how the services are rendered’. However, both constituents stressed the importance of expertise, quality and the relationship between the client and the management consultancy, although the character of such a relationship differed between small- and large-scale firms. Results also point out criteria that managers of small and large companies employ to discriminate between good and poor performing consultancies and to judge service delivery. The practical implications for both companies hiring consultancies and the consultancy companies are discussed. For consultancies, our findings can help tailoring their efforts to a differing clientele when marketing and selling their services. For companies hiring consultancies, fixating too much on particular buying factors may lead to biased decisions.     

财务共享下管理会计在中小企业的应用研究

为提高企业的综合效益,论文对管理会计在中小企业中的应用问题展开详细讨论,以此为基础,提出管理会计在财务共享模式下的具体应用策略,为中小企业未来的可持续发展及经济效益稳定增长提供有利保证。     

基于BIM技术的工程造价精细化管理研究

为实现工程造价精细化管理目标,需要各个环节的相互配合来达到资源优化配置。BIM技术依托虚拟建模技术,实现了对工程项目的数字化建造管理。实践证明,将BIM技术融入项目工程造价管理体系中,有助于提升工程造价管理的整体质量。论文立足工程造价精细化管理的内涵,剖析了BIM技术在工程造价精细化管理中的应用价值,并提出了BIM技术在工程造价精细化管理中的具体应用策略。     

房地产财务管理工作中关键环节的有效控制研究

房地产行业是国家经济中重要的支柱性产业之一,其发展十分迅速。随着国家陆续出台对房地产行业宏观调控的政策,房地产企业之间的竞争也在逐渐加剧,使很多房地产项目的开发面临着财务风险和资金压力。因此,房地产企业应该结合自身发展情况,在企业管理工作中制定对关键环节有效控制的相关制度,从而使得房地产企业实现可持续性发展。     

论企业核心人才的界定与管理

现代企业间的竞争实质上是人才的竞争,特别是核心人才的竞争。企业发展中核心人才是促进企业发展和创新的动力,核心人才的挖掘和管理直接影响企业的命脉,因此,企业必须要加强对核心人才的界定和管理,明确哪些人才为核心人才,并采取针对性的管理方式,才能促进企业的健康发展。论文主要对企业核心人才的界定进行分析,并探究核心人才的管理策略。     

基于地铁车站安全运营的层级管理科学探究

为了化解城市地铁快速建设所带来的车站运营安全风险,为提高我国地铁车站运营管理水平提供参考,论文以青岛地铁车站运营安全管理模式为研究对象,探讨了体系的搭建、措施的落实、结果的检查、问题的改善等环节的科学管理机制。     

真实型领导与团队创新绩效: 差错管理氛围与特质调节焦点的作用研究

团队创新是企业获取竞争优势,实现可持续发展的重要保证。差错管理氛围和特质焦点提供了理解团队创新的新视角。研究发现真实型领导通过营造差错管理氛围,对团队创新绩效产生正向影响;团队提升型特质调节焦点在差错管理氛围和团队创新绩效间起到正向调节作用。文章拓展了创新、差错管理氛围以及调节焦点等相关文献,并为提升团队创新绩效提供了管理建议。     

当前消防监督管理工作面临的困难及应对措施

随着我国社会经济的迅速发展,城市建筑的集中度逐渐提升,人口密度不断增大,这对消防监督管理工作提出了更多更高的要求。因此,在当前时期要提高对消防监督管理工作的重视程度,从而不断提升消防监督管理工作的质量。论文介绍了消防监督管理工作面临的困难,并提出了应对措施。     

When natural resources run out,market knowledge steps in: Lessons on natural resource deployment from a longitudinal study in a resource-scarce region of Ethiopia

With the increasing scarcity of natural resources, the ability to maintain quality standards during resource-scarce times becomes more critical for business performance. Theories on managing resource scarcity cannot be easily tested in contexts where resources are still abundant. This study therefore turns to an emerging market context in which natural resource availability naturally varies strongly between seasons, namely, that of Ethiopian pastoralists who for many generations learned to adapt to natural resource scarcity. Central to our theory is the natural resource deployment capability, which is the ability of a business to make efficient and effective use of available resources to maintain business performance during resource-scarce times. Using three-wave longitudinal data from 120 pastoral family-based livestock businesses, the study shows that when resources are scarce or extremely scarce, market knowledge helps to better deploy the scarce natural resources, leading to higher product quality. The findings imply that businesses with a better understanding of markets have stronger natural resource deployment capability. The lesson for businesses that are confronted with approaching resource scarcity is therefore to strengthen their ability to deploy resources efficiently and effectively by strengthening their market knowledge in which such capability is rooted.