Publications des institutions partenaires
Energy security Coping with multiple supply risks
This study starts from the observation that today's Western trading nations are exposed to multiple risks of energy supplies, eg simultaneous shortage of oil and gas supplies. To cope with these risks, both oil and gas can be stockpiled. Adopting the viewpoint of a policy maker who aims at minimizing the expected cost of security of supply, optimal simultaneous adjustments of…
Institution partenaire
English / 01/01/1995
Diffusion of hospital innovations in different institutional settings
This paper purports to analyze a hospital's adoption of both product and process innovation as a quantal choice. The impacts of this decision on physicians, while depending on institutions that differ between the US and continental Europe, are shown to feed back to the hospital, influencing the profitability of the innovation. Recent changes of hospital finance give rise to…
Institution partenaire
English / 01/01/1995
Collective action, migration and welfare states
In current welfare state analysis there is little theory to explain the action of exclusive groups. This article explores the possibilities of a theory that focuses on the interaction between individual choices and strategies, the formal systems, policies and rules of governments and the informal norms and practices of groups. The argument is that club theory, a branch of public…
Institution partenaire
English / 01/01/1995
Happiness and unemployment: a panel data analysis for Germany
We use data from the German Socio-Economic Panel to investigate how individual happiness is affected by unemployment. Unemployment has a large and negative effect even after controlling for individual specific fixed effects. Nonparticipation, in contrast, is much less harmful to happiness. Further, we decompose the total well-being costs of unemployment and find that well above three…
Institution partenaire
English / 01/01/1995
Duration dependence and dispersion in count - data models
This paper explores the relation between non-exponential waiting times between events and the distribution of the number of events in a fixed time interval. It is shown that within this framework the frequently observed phenomenon of overdispersion, i.e. a variance that exceeds the mean, is caused by a decreasing hazard function of the waiting times, while an increasing hazard…
Institution partenaire
English / 01/01/1995
Neue Arbeitsformen: Die elektronische Aufhebung raum-zeitlicher Grenzen
Institution partenaire
Deutsch / 01/01/1995
Immigration, distribution des revenus et bien-être social
Institution partenaire
Français / 01/01/1995
Jurisprudence récente relative aux opérations bancaires
Institution partenaire
Français / 01/01/1995
La fiducie, cendrillon du droit suisse : propositions pour une réforme
Institution partenaire
Français / 01/01/1995
Die ökonomischen Institutionen der Teamsportindustrie: eine Organisationsbetrachtung
Institution partenaire
Deutsch / 01/01/1995
Das Management der vertikalen Integration - Ein Überblick unter besonderer Berücksichtigung der deutschen und europäischen Situation
Institution partenaire
Autre / 01/01/1995
Contexts and Composite Objects
Many applications require the capability to define and manipulate a collection of related objects as a single unit. Object-oriented database models and systems usually provide the concept of composite object for that purpose. The concept of context that we propose here provides another, more general, way to view and manipulate collections of objects. We compare the two concepts both…
Institution partenaire
English / 01/01/1995
Evolution Features of the F2 OODBMS
Features specially devoted to schema evolution in the F2 object-oriented database system are presented in this paper. They include a meta-circular and reflective model where primitive operations (create, update, delete) on schema objects form a complete taxonomy of schema changes. All the schema objects of a database are updatable and the consequences of these changes on objects are…
Institution partenaire
English / 01/01/1995
The Messenger paradigm and its implications on distributed systems
Most distributed systems are built on top of a message exchange infrastructure. Processes coordinate their execution by exchanging messages which are interpreted according to a pre-established set of protocols. We present in this paper a novel way of communicating which does not require the preconfiguration of protocol entities. The host initiating the communication has the ability…
Institution partenaire
English / 01/01/1995
Distributed Semaphore In A Messenger Environment
The messenger paradigm advocates the exchange of programs called messengers between communicating hosts instead of messages. Each host contains a messenger execution environment called messenger platform. Messengers are expressed in a language understood by all the platforms. A distributed messenger environment is a collection of messenger platforms linked through an unreliable…
Institution partenaire
English / 01/01/1995
SANDS1.5/COOPN1.5 An Overview of the Language and its Supporting Tools
In this document we give an overview of the CO-OPN/1.5 (Concurrent Object-Oriented Petri Nets) specification language and describe the features of each tool provided in the SANDS/1.5 (Structured Algebraic Net Development System) development environment. The CO-OPN/1.5 language is a specification language devised to support the development of large concurrent systems. The underlying…
Institution partenaire
English / 01/01/1995
Mathematical Formalization of the Messenger Paradigm
This technical report presents the syntax and semantics, in terms of transition system, of the messenger paradigm as it has been presented in [8]. Messengers are mobile agents able to collaborate and to coordinate their work, but are not considered as intelligent agents. More precisely, messengers are mobile codes exchanged between messenger platforms. Arriving messengers are…
Institution partenaire
English / 01/01/1995
A Distributed Micro–Kernel for Communications Messengers
Mobile software agents require a distributed execution environment in which they can command the use of many resources like memory, CPU time and bandwidth. While current research seems to concentrate on roaming agents at the application level and tries to define suitable high–level environments, we think that such an execution environment must be rooted at a very low-level. We argue…
Institution partenaire
English / 01/01/1995
Towards Hypermedia Electronic Publishing
The most important problem that decision makers face in today's ever increasing information flux is how to find efficiently and fast the useful information. Hypermedia Electronic Publishing systems, supporting active information distribution and offering hypertext browsing facilities, provide a promising solution to this problem. Nevertheless several issues, like value added…
Institution partenaire
English / 01/01/1995
A Calderon-Zygmund extension theorem for abstract Sobolev spaces
Institution partenaire
English / 01/01/1995
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