Management of dispersed product development teams: the role of information technologies

In recent years, international corporations such as IBM are increasingly relying on dispersed R&D teams in order to keep pace with resource availability and the demands of global markets. The advantages of this approach arise mainly from the utilization of differences in personnel costs and gaining access to a broader knowledge base to satisfy the demands of international clients. The disadvantages of teams of this kind are obvious: geographic distances, differences in culture and work habits as well as the necessity to bridge time zones place greater demands on communication, synchronization and management.
The application of specific project management methods and the intensive use of information technology (IT) lessens the disadvantages in transnational development projects. Recently completed projects involving large-scale commercial software development at IBM demonstrate the potentials of IT in transnational development. The authors advocate the application of IT adapted to specific situations. The central fields of application of IT in dispersed R&D teams are the development of a personal network, the promotion of creativity, the exchange of technical information, and the coordination of decentralized project activities.     

Social imaginaries and Big History: Towards a new planetary consciousness?

A sustainable global future depends on a fundamental shift from the currently dominant national imaginary to a global imaginary. Most of human reasoning is based on prototypes, framings and metaphors that are seldom explicit; although they can be forged, usually they are merely presupposed in everyday reasoning and debates. The background social imaginary offers explanations of how ‘we’ fit together, how things go on between us, the expectations we have of each other and outsiders, and the deeper normative notions and images that underlie those expectations. We argue that although the 17th and 18th century scientific and social revolutions generated prototypes, metaphors, framings and related conceptions of time and space that pointed towards a global imaginary, there were deep-seated structural reasons for the ‘nation’ to become, at least temporarily, the central category of human existence and belonging. By the early 21st century, there are already widespread metaphors that envisage the human world as a whole—from the ‘global shopping mall’ or ‘global village’ to the ‘spaceship Earth’. Yet, compared to the rich poetics of national imaginaries, the proposed prototypes, metaphors and framings are often thin. Evoking innovative myths about shared human existence and destiny, Big History helps to articulate the rising global imaginary in terms that motivate transformative and progressive politics in the 21st century.     

Rezensionen

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Rezensionen

Ohne Zusammenfassung     

Efficient Contracting and Fair Play in a Simple Principal-Agent Experiment

We study behavior within a simple principal-agent experiment. Our design allows for a large class of linear contracts. Principals can offer any feasible combination of (negative) fixed wages and incentives in the form of return sharing. This great contractual flexibility allows us to study incentive compatibility simultaneously with issues of 'fair sharing' and reciprocity, which were previously found to be important. We find a high degree of incentive-compatible behavior, but also 'fair sharing' and reciprocity. In contrast to other incentive devices studied in the literature, the incentives are 'reciprocity-compatible'. Principals recognize the agency problem and react accordingly.     

FREEDOM OF CHOICE AND WEIGHTED MONOTONICITY OF POWER

The paper discusses the substitution of mergeability by the weighted monotonicity property in the definition of the Public Good Index. The cardinality of sets, implicit to the measurement of power, can thus be related to comparing sets and relations of counting and set inclusion. This allows for the application of results from the measurement of power to the specification of freedom of choice and thereby to connect the ‘world of agents’ with the ‘world of opportunities’. The relationship between weighted monotonicity and constrained monotonicity is specified.     

The Jarrow/Turnbull default risk model—Evidence from the German market

Abstract

This article estimates default intensities within the continuous-time Jarrow and Turnbull model for German bank and corporate bond prices. It is shown that a joint implicit estimation of the default intensity and the recovery rate is numerically unstable. In addition to cross-sectional estimations, separate estimations (for each bond individually) are performed. Results strongly support separate estimation over the building of any cross-sections. In contrast to preceeding literature, the optimum volume of data required to provide reasonable estimates of the default intensity is also investigated. It is shown that calibration based on daily data as a rule does not minimize the ex ante mean squared pricing errors. Finally, it is shown that the constant default intensity assumption is not sound with the underlying data and the determinants of the default intensity are investigated. Regressions show that the lagged default intensity estimate, the level of the default-free term structure and liquidity proxies affect the estimated default intensity via joint parameters.     

A decision support system to investigate dynamic last-mile distribution facilitating cargo-bikes

This work presents a decision support system to facilitate efficient urban last-mile distribution. Orders are collected and delivered by a fleet of both conventional vehicles owned by a logistics provider and cargo-bikes operated by freelancers. Additionally, micro-hubs are operated to perform transshipments between multiple vehicles. To investigate the corresponding problem setting, an agent-based simulation is developed, which uses dynamic optimisation procedures to generate and select vehicle routes and transshipment points. Experiments motivated by dynamic real-world urban restaurant delivery services investigate the impact of cargo-bikes, urban consolidation and guaranteed delivery times. Potentials are discussed and implications for successful implementations are provided. Results highlight the importance of having a sufficient number of active cargo-bikes available and benefits of incorporating consolidation strategies to guarantee timely deliveries.