This Article focuses in part on what the approach to market definition in the EC reveals about its competition policy generally. There are additional reasons why lawyers should consider market definition issues. In the two sections of this Article, the EC approach to market definition will be examined. The treatment of market definition under Articles 85 and 86 is considered first, followed by ...

the non-differentiability and implicit definition of boundary of production possibility set (pps) in data envelopment analysis (dea) are two important difficulties for obtaining directional characteristics, including different elasticity measures and marginal rates of substitution. also, imposing weight restrictions in dea models have some shortcomings and misunderstandings. in this paper we ut...

Today, more and more new technologies of information and wireless communication are useful for social, economic and industrial life. Auto-ID technologies such as RFID are a good example of that. The actual limits of these new systems are relative to their granularity, since items are the smallest parts of an ubiquitous system (Internet of things). In this paper we propose a ”communicating mater...

This paper introduces a scheduling problem with coupledtasks in presence of a compatibility graph on a single processor. We investigate a specific configuration, in which the coupled-tasks possess an idle time equal to 2. The complexity of these problems will be studied according to the presence or absence of triangles in the compatibility graph. As an extended matching, we propose a polynomial...

In this paper the application of some deep theorems of mathematical logic is shown in the field of artificial intelligence. Namely, using some of the results of definition theory we give the mathematical base to systems for automatic designing. /SAD/, These systems are capable of solving constructive tasks of such kind that need some creativity from the psychological point of view. Above tasks ...

We will continue the study of the Distinct Elements problem in the data stream model [6, 1, 3]. Its goal is to find a number of distinct elements in a stream of input elements. The length of the input stream can be huge, so storing all the input elements in memory is not an option. According to the data stream model, the input elements arrive and have to be processed serially, not allowing rand...

this study is devoted to the formulation of the network design problem of one-way streets and the application of simulated annealing (sa) algorithm to solve this problem for a large real network. it discusses some points of views on one-way street networks, the objective function used for design, the way in which design constraints may be considered, and the traffic problems concerning one-way ...

Many logistic activities are concerned with linking material flows among companies and processes. In such applications, we find a combination of quantity decisions, e. g. the amount of goods shipped (Inventory Management), and routing decisions as tackled in the area of Vehicle Routing. Clearly, both areas intersect to a considerable degree, complicating the solution of such problems. Recently,...

An instance of a p-median problem gives n demand points. The objective is to locate p supply points in order to minimize the total distance of the demand points to their nearest supply point. p-Median is polynomially solvable in one dimension but NP-hard in two or more dimensions, when either the Euclidean or the rectilinear distance measure is used. In this paper, we treat the p-median problem...