This paper studies models where the optimal response functions under consideration are non-increasing in endogenous variables, and weakly increasing in exogenous parameters. Such models include games with strategic substitutes, and include cases where additionally, some variables may be...

What is Switzerland’s position today with regard to the acceptance, diffusion and usage of new work forms and business methods in the economy and society? One of the most extensive international surveys of population and businesses done thus far gives well founded answers to these questions:...

This article explores the Americanisation of food retailing in Spain while making a running comparison with developments in Britain and more especially, within the development of self-service techniques. This international comparison helps to ascertain the evolution and modernisation of food...

The processes of structural change and modernisation in the food distribution industry have been submitted to different economic and institutional frameworks in European countries. Two essential factors have affected these changes: on one hand, the role of technical, financial and organisational...

We discuss the classification of local generic singularities of so called transitivity zones, arising in control theory and determined by a family of closed submanifolds in a linear space depending on parameters. Transitivity zone consists of parameter values such that the origin belongs to the...

This paper specifies and interprets those direct relations which exist between the dual concepts of complete controllabil-ity/observability (Kalman, 1960), on the one hand, and the con-cept of the regular technique of production (Schefold, 1971), on the other. Specifically, it shows, first, that...

Government agencies lack robust modelling tools to manage the spread of invasive alien species (IAS). In this paper, we combine optimal control and simulation methods with biological invasion spread theory to estimate the type of optimal policy and switching point of control efforts against a...

Given the framework introduced by Dutta and Sen (2012), this paper offers a comprehensive analysis of (Nash) implementation with partially honest agents when there are three or more participants. First, it establishes a condition which is necessary and sufficient for implementation. Second, it...

Mathematical Economics, Social Science and Political Science are inter-related. In this paper, an attempt has been made to describe aspects of these subjects by introducing examples, definitions, mathematical calculations and discussions. Game Theory is included in this paper to study...

A model of the economic system with the property rights distributed among several agents is considered. The effect of property rights allocation on the economic efficiency of the management strategies is studied.