Financing Dutch direct investments to transition economics

Firms interested in a direct investment in a transition countries often face difficulties in obtaining external finance. In this study Dutch survey data are used to check if financial obstacles are an important argument for Dutch firms not to engage in an FDI or if other nonfinancial arguments prevail in the decision not to invest. The analysis shows that financial problems are indeed large, but the major arguments for firms not to invest are not financial in nature. The uncertainty of the investment, lack of time and capacity and internal arguments are most often mentioned as obstacles for an FDI.financial economics and financial management ;

Interface Tracking and Solid-Fluid Coupling Techniques with Coastal Engineering Applications

Multi-material physics arise in an innumerable amount of engineering problems. A broadly scoped numerical model is developed and described in this thesis to simulate the dynamic interaction of multi-fluid and solid systems. It is particularly aimed at modelling the interaction of two immiscible fluids with solid structures in a coastal engineering context; however it can be extended to other similar areas of research. The Navier Stokes equations governing the fluids are solved using a combination of finite element (FEM) and control volume finite element (CVFE) discretisations. The sharp interface between the fluids is obtained through the compressive transport of material properties (e.g. material concentration). This behaviour is achieved through the CVFE method and a conveniently limited flux calculation scheme based on the Hyper-C method by Leonard (1991). Analytical and validation test cases are provided, consisting of steady and unsteady flows. To further enhance the method, improve accuracy, and exploit Lagrangian benefits, a novel moving mesh method is also introduced and tested. It is essentially an Arbitrary Lagrangian Eulerian method in which the grid velocity is defined by semi-explicitly solving an iterative functional minimisation problem. A multi-phase approach is used to introduce solid structure modelling. In this approach, solution of the velocity field for the fluid phase is obtained using Model B as explained by Gidaspow (1994, page 151). Interaction between the fluid phase and the solids is achieved through the means of a source term included in the fluid momentum equations. The interacting force is calculated through integration of this source term and adding a buoyancy contribution. The resulting force is passed to an external solid-dynamics model such as the Discrete Element Method (DEM), or the combined Finite Discrete Element Method (FEMDEM). The versatility and novelty of this combined modelling approach stems from its ability to capture the fluid interaction with particles of random size and shape. Each of the three main components of this thesis: the advection scheme, the moving mesh method, and the solid interaction are individually validated, and examples of randomly shaped and sized particles are shown. To conclude the work, the methods are combined together in the context of coastal engineering applications, where the complex coupled problem of waves impacting on breakwater amour units is chosen to demonstrate the simulation possibilities. The three components developed in this thesis significantly extend the application range of already powerful tools, such as Fluidity, for fluids-modelling and finite discrete element solids-modelling tools by bringing them together for the first time

Polycentric Information Commons: A Theory Development and Empirical Investigation

Decentralized systems online—such as open source software (OSS) development, online communities, wikis, and social media—often experience decline in participation which threatens their long-terms sustainability. Building on a rich body of research on the sustainability of physical resource systems, this dissertation presents a novel theoretical framing that addresses the sustainability issues arising in decentralized systems online and which are amplified because of their open nature. The first essay develops the theory of polycentric information commons (PIC) which conceptualizes decentralized systems online as “information commons”. The theory defines information commons, the stakeholders that participate in them, the sustainability indicators of information commons and the collective-action threats putting pressure on their long-term sustainability. Drawing on Ostrom’s factors associated with stable common pool resource systems, PIC theory specifies four polycentric governance practices that can help information commons reduce the magnitude and impact of collective-action threats while improving the information commons’ sustainability. The second essay further develops PIC theory by applying it in an empirical context of “digital activism”. Specifically, it examines the role of polycentric governance in reducing the threats to the legitimacy of digital activism—a type of information commons with an overarching objective of instigating societal change. As such, it illustrates the applicability of PIC theory in the study of digital activism. The third essay focuses on the threat of “information pollution” and its impact on open collaboration, a type of information commons dedicated to the creation of value through open participation online. It uncovers the way polycentric governance mechanism help reduce the duration of pollution events. This essay contributes to PIC theory by expanding it to the realm of operational governance in open collaboration

Choice Anxiety in Decision Making: Why People Turn to Strangers for Information

This research-in-progress paper examines the conditions that cause individuals to rely on electronic word of mouth (eWoM) when making purchasing decisions. I theorize that, paradoxically, turning to strangers for information gives individuals a sense of control in a decision environment characterized by overwhelming amounts of alternatives and prevailing information asymmetries. Building on information systems (IS) literature examining questions of usage from both intentional (conscious) and automatic (subconscious) prisms, I introduce the notion of choice anxiety. I propose and test a model of how subconscious choice anxiety, together with adverse selection avoidance is associated with an individual’s sense of control based on eWoM information. I further speculate that the emergence of choice anxiety and its successful resolution triggers a classical conditioning that reinforces an individual’s reliance on eWoM information sources, thereby contributing to its institutionalization

Self-administering arithmetic enrichment activities for the more rapid learner

Thesis (Ed.M.)--Boston Universit

Regulatory Treatment of IP Transport and Services

Current U.S. regulatory policy is incoherent in its treatment of packet-oriented data communications services. Services based on X.25, Frame Relay or ATM protocols are regulated as telecommunications services, while IP packet transport is lumped together with applications such as email and the World Wide Web -- and treated as an unregulated information service. Uncertainty also reigns over the appropriate treatment of IP telephony. As IP transport becomes an ever more significant fraction of all telecommunications, public policy problems posed by this inconsistent treatment are likely to increase

Wikis for Teaching and Learning

An academic course presents an opportunity for all participants to collaborate for improving their knowledge. This collective improvement of knowledge is typically documented via material provided by the instructor and notes and assignments prepared by students. Over the course of a semester, these materials provide not only the collective knowledge in that course, but also provide a chronological history of how the knowledge base evolved. The focus of this study is wiki collaboration in teaching & learning contexts. A wiki is a medium in which a group of individuals can work together asynchronously on an idea and easily capture the essence in a reusable format. Technically, a wiki is a collection of hyperlinked Web pages that are assembled with wiki software. With wikis, the line between reader and contributor is intentionally blurred. Further, wiki use reflects the view of an instructor as one who facilitates information sharing among learners rather than simply transmitting knowledge from themselves to their students. Our initial motivation to explore the usefulness of wikis for teaching and learning was driven by the fact that wikis provide a medium in which several individuals could asynchronously work together on an idea and easily capture the essence in a reusable format. We found that: (1) Wikis can be can be used for a variety of tasks ranging from signup sheet for students to self organize, to undertaking business analyses, to analyzing policy positions; (2) Instructor support and facilitation is key; and (3) Ease-of-use issues are present but do not preclude success