Narrow search
Showing 1 - 10 of 1,077
Cover Image
Führt Google Shopping zu einer neuen Art von Wettbewerbsproblem?
Blanckenburg, Korbinian von - In: Zeitschrift fuer Wirtschaftspolitik 63 (2014) 3, pp. 240-256
This paper is concerned with the question of how to deal with Google Shopping’s position on online markets in order to prevent harm to public welfare. From the perspective of sellers and buyers of goods and services in Germany, Google can be seen as a gatekeeper to the Internet and thus as an...
Persistent link: https://www.econbiz.de/10011123609
Cover Image
Intermediate Microeconomics
Hoag, John H - World Scientific Publishing Co. Pte. Ltd.
This book provides a rigorous course to the theory of intermediate microeconomics. It includes not only the basic … traditional theory, but also a ¡°From the Literature¡± box in each chapter directing students to applications of the theory. The … theory is developed axiomatically, with optional sections using one-variable calculus included for interested readers. A …
Persistent link: https://www.econbiz.de/10011156361
Cover Image
A flexible approach to location problems
Rodríguez-Chía, Antonio M.; Nickel, Stefan; Puerto, Justo - In: Mathematical Methods of Operations Research 51 (2000) 1, pp. 69-89
When dealing with location problems we are usually given a set of existing facilities and we are looking for the location of one or several new facilities. In the classical approaches weights are assigned to existing facilities expressing the importance of the new facilities for the existing...
Persistent link: https://www.econbiz.de/10010999596
Cover Image
A polynomial method for the pos/neg weighted 3-median problem on a tree
Burkard, Rainer; Fathali, Jafar - In: Computational Statistics 65 (2007) 2, pp. 229-238
Let a connected undirected graph G  =  (V, E) be given. In the classical p-median problem we want to find a set X containing p points in G such that the sum of weighted distances from X to all vertices in V is minimized. We consider the semi-obnoxious case where every vertex has either a...
Persistent link: https://www.econbiz.de/10010847753
Cover Image
Finding a core of a tree with pos/neg weight
Zaferanieh, Mehdi; Fathali, Jafar - In: Computational Statistics 76 (2012) 2, pp. 147-160
Let T = (V, E) be a tree. A core of T is a path P, for which the sum of the weighted distances from all vertices to this path is minimized. In this paper, we consider the semi-obnoxious case in which the vertices have positive or negative weights. We prove that, when the sum of the weights of...
Persistent link: https://www.econbiz.de/10010847760
Cover Image
Bicriteria and restricted 2-Facility Weber Problems
Nickel, Stefan - In: Computational Statistics 45 (1997) 2, pp. 167-195
In this paper we look at two interesting extensions to the classical 2-Facility Weber Problem in ℝ d : At first problems are investigated where we do not allow the optimal locations to be in a specific region. Efficient algorithms for this Global Optimization problem are presented as well as...
Persistent link: https://www.econbiz.de/10010847766
Cover Image
A polynomial method for the pos/neg weighted 3-median problem on a tree
Burkard, Rainer; Fathali, Jafar - In: Mathematical Methods of Operations Research 65 (2007) 2, pp. 229-238
Let a connected undirected graph G  =  (V, E) be given. In the classical p-median problem we want to find a set X containing p points in G such that the sum of weighted distances from X to all vertices in V is minimized. We consider the semi-obnoxious case where every vertex has either a...
Persistent link: https://www.econbiz.de/10010999773
Cover Image
Finding a core of a tree with pos/neg weight
Zaferanieh, Mehdi; Fathali, Jafar - In: Mathematical Methods of Operations Research 76 (2012) 2, pp. 147-160
Let T = (V, E) be a tree. A core of T is a path P, for which the sum of the weighted distances from all vertices to this path is minimized. In this paper, we consider the semi-obnoxious case in which the vertices have positive or negative weights. We prove that, when the sum of the weights of...
Persistent link: https://www.econbiz.de/10010999781
Cover Image
Bicriteria and restricted 2-Facility Weber Problems
Nickel, Stefan - In: Mathematical Methods of Operations Research 45 (1997) 2, pp. 167-195
In this paper we look at two interesting extensions to the classical 2-Facility Weber Problem in ℝ<Superscript> d </Superscript>: At first problems are investigated where we do not allow the optimal locations to be in a specific region. Efficient algorithms for this Global Optimization problem are presented as well as...</superscript>
Persistent link: https://www.econbiz.de/10010999788
Cover Image
Concentration and Specialisation Trends in Germany since Reunification
Suedekum, Jens - HWWA Institut für Wirtschaftsforschung - 2004
1993 and 2001. Somewhat contrary to theoretical expectations derived from the recent literature in location theory, we …
Persistent link: https://www.econbiz.de/10010957315