infonet-economy

The need for flexible protocol stacks in communication software, instead of static, predefined protocol stacks, has been more and more asserted these last years. We present here a new environment, COMSCRIPT, which addresses the implementation of flexible protocol stacks directed by the application. COMSCRIPT is a new programming language, derived from POSTSCRIPT, which follows an...

Access is a new algebraic specification formalism, which focuses on the fine description of the ``true'' concurrency and on a high degree of expressivity. Systems are specified by a set of local states, whose value changes under the occurrence of events. Both events and data structure are specified by abstract data types. Static properties, i.e. global constraints over...

Drawing on recent work concerning the statistical robustness of inequality statistics we examine the sensitivity of poverty indices to data contamination using the concept of the influence function. We show that poverty and inequality indices have fundamentally different robustness properties, and demonstrate that an important commonly used subclass of poverty measures will be robust...

The study introduces a distinction between two types of labor mobility: direct job to job changes (which are assumed to be voluntary) and job changes after experiencing an unemployment spell (assumed to be involuntary). Exploiting the close relationship between those two phenomena we adopt a bivariate regression framework for our empirical analysis of data on male individuals in the...

The features of a database system specifically designed to support evolution are presented. The design of the F2 system has been deliberately directed toward integration of evolution features and the flexibility of structures at every level. This has leaded to an architecture where the meta-circular organization of the objects management is not an aesthetic facet but a concrete...