The Modeling Process for Stage Models

The purpose of this paper is to present and test a modeling procedure because researchers have struggled for decades to develop stages-of-growth models that are both theoretically founded and empirically validated. This article presents the concept and hypothesis of stages, the history of stage models, and a procedure that may serve as a useful tool in modeling stages of growth. Based on previous research and lessons learned from case study experience of the government sector in Norway, a procedure for the stages of growth modeling process is suggested and demonstrated. The procedure is used for developing a stage model for e-government interoperability. This article provides new insight into issues and challenges faced when engaging in stages of growth research. The paper proposes a new approach to stages of growth modeling. The utility of the suggested procedure is to improve theory building and empirical validation. The contribution to academia is the modeling process that can be applied in future developments of stages of growth. The contribution to practice lies in the stage hypothesis of organizational development over time.     

将数学建模培训融入数学教学体系的研究

数学建模具有创新性、综合性和对数学应用研究的推动性等特点，开展数学建模培训和竞赛活动符合当今人才的培养要求和大学数学的教学改革方向。通过创新教学方式、改革教学内容等手段将数学建模培训有效地融入到数学教学体系中，不仅能显著提高学生的创新能力，还有助于教师教学水平的提高。     

The New Globalisation: From Too Big to Fail to Too Intertwined to Decouple

Intereconomics - Going forward, international elites should instead strive for the application of one of the most liberal-minded principles of this current world order: self-determination.     

Semantic Process Modeling – Design and Implementation of an Ontology-based Representation of Business Processes

An extension of process modeling languages is designed which allows representing the semantics of model element labels which are formulated in natural language by using concepts of a formal ontology. This combination of semiformal models with formal ontologies will be characterized as semantic process modeling. The approach is exemplarily applied to the languages EPC (Event-driven Process Chain), BPMN (Business Process Modeling Notation) and OWL (Web Ontology Language) and is generalized by means of an information model. The proposed formalization of the semantics of individual model elements in conjunction with the usage of inference engines allows the improvement of query functionalities in modeling tools and enables new possibilities of model validation. The integration of the approach in the IT-based work environments of modelers is demonstrated by a system architecture and a prototypical implementation. Evidently, advantages in the areas of modeling, model management, IT-business alignment, and compliance can be achieved by the application of modeling tools augmented with semantic technologies.     

Modeling oil production with new empirics

ABSTRACT

This article first provides an overview of some stylized features of upstream oil production in light of recent developments in the US shale industry. Empirical observations motivate the formulation of a dynamic optimization model for oil extraction, in which an oil producer determines the optimal “intensity” of drilling wells. Given the intensity, oil production is a state variable where oil flow is characterized by a hyperbolic decline curve that captures the effects of geological constraints. Numerical simulations of the model highlight the importance of both output prices and cost efficiencies in understanding historical dynamics of shale oil production.     

Small‐Firm Performance: Modeling the Role of Product and Process Improvements*

Entrepreneurial and small and medium‐sized enterprises (SMEs) firm performance is a complex, multifaceted construct that should be examined with an eye toward its complexity. Our research study seeks to accomplish this examination by proposing a conceptual model of SME performance with two distinct but related outcome dimensions—growth as one dimension and profitability as another. We propose hypotheses for relationships between four antecedent factor conditions— environmental hostility, firm size, innovation capability, and internationalization—and an SME's likelihood to pursue either product improvement or process improvement as their primary strategic orientation. Furthermore, we propose that an SME product improvement orientation likely has greater influence on growth and profit performance than will a process improvement orientation. The findings of the study suggest that internationalization and innovator position have a positive impact on new product and process improvements, while environmental hostility, internationalization, and product improvement have positive influences on growth as a performance dimension. In addition and as hypothesized, the product improvement orientation is positively associated with growth and in turn profitability, whereas the process improvement orientation showed no statistical relationship to growth and ultimately profitability.     

基于Petri Net和BPR的企业过程建模研究与应用

企业过程建模、分析和优化是企业过程重组BPR的基础,行之有效的建模技术是成功实施BPR的关键。为了对企业过程建模技术进行系统研究,在深入分析BPR特点的基础上,主要结合PetriNet技术,提出企业进行过程建模的阶梯层次方法,建立了BPPN模型,描述了Petri Net在企业过程中的形式化表示,并运用一个实例来验证模型的实用性,可以使管理者了解企业的生产细节和流程,更好地做出决策。     

Modeling extended manufacturing processes with service-oriented entities

The architectural style of next generation technological platforms intended to support design, deployment, and execution of extended business processes inside organizational networks, must be guided by interoperability principles at the processes, services, or data level. Service-oriented architectures, these being design patterns, and not merely technology, attempt to address these issues. Yet we believe that some of their underlying concepts (i.e., service providers, interfaces, and instances) must still be included at the business models level. This study attempts to show that how by introducing the Abstract and Concrete Service Entities concept at the extended business process models level, it could be possible to address most of the current interoperability issues inside a manufacturing network.     

关于国家粮库建设现存问题及解决的建议

针对3个正在运营中的国储库进行实地调研，对其在使用过程中存在的一些问题提出建议。     

Modeling economic growth with tourism for small open economies

The purpose of the paper is to develop an economic growth model and analyze the impact of changes in tourists’ income on the growth of tourism dependent small open economies. We use a general theoretical construct to answer the question of how the price elasticity of tourism demand, income elasticity of tourism demand, and the concentration in the service sector influence the economic development of small economies. One of the main results is that the policy planners in small open economies may consider specific policies to influence the strength of market competition. An ensuing effect of such policies is that the labor incomes will increase. The approach provides a microeconomic foundation for macroeconomic modeling which can be used for applied research, and the model can be easily extended to examine other dimensions of economic development.     

Modeling VXX under jump diffusion with stochastic long-term mean

We develop a model for the VXX, the most actively traded VIX futures exchange-traded note, using Duffie, Pan, and Singleton's affine jump diffusion framework, where the volatility process has jumps and a stochastic long-term mean. We calibrate the model parameters using the VIX term structure data and show that our model provides the theoretical link between the VIX, VIX futures, and the VXX. Our model can be used for pricing VIX futures, the VXX and other short-term VIX futures exchange-traded products (ETPs). Our model could be extended to price options on the VXX and other short-term VIX futures ETPs.     

试论开放经济中的政府职能

在加入世贸组织问题上，人们以往谈论较多的是各类产业如何应对挑战，并提出了不少的对策建议。但实际上“入世”对政府经济管理职能的挑战可能更大，而且较难在短时期内完全适应。从对WTO相关规则和主要条款的分析中不难发现，WTO在更大的程度上是“管”政府的，即制定出具有约束力的条款，由各成员国政府遵照执行，因此政府经济职能的转变就变得极为迫切。     

Modeling Corporate Citizenship and Its Relationship with Organizational Citizenship Behaviors

Citizenship, such as corporate citizenship and organizational citizenship, has been an important issue in business management for decades. This study proposes a research model from the perspectives of social identity and resource allocation, by examining the influence of corporate citizenship on organizational citizenship behaviors (OCBs). In the model, OCBs are positively influenced by perceived legal citizenship and perceived ethical citizenship, while negatively influenced by perceived discretionary citizenship. Empirical testing using a survey of personnel from 18 large firms confirms most of our hypothesized effects. Theoretical and managerial implications of our findings are discussed.     

Consensus Modeling with Asymmetric Cost Based on Data-Driven Robust Optimization

Group Decision and Negotiation - The robust optimization method has progressively become a research hot spot as a valuable means for dealing with parameter uncertainty in optimization problems....