In the model presented here, n parties choose policy positions in a space Z of dimension at least two. Each party is represented by a ‘‘principal’’ whose true policy preferences on Z are unknown to other principals. In the first version of the model the party declarations determine the lottery outcome of coalition negotiation. The coalition risk functions are common knowledge to the parties. We...

It has been a standard result of the stochastic, or probabilistic, spatial model of voting that vote maximizing candidates, or parties, will converge to the electoral mean (the origin). This conclusion has appeared to be contradicted by empirical studies. Here, a more general stochastic model, incorporating ‘exogeneous’ valence, is constructed. Contrary to the standard result, it is shown in Th...

The spatial price equilibrium model begins with the Hitchcock-Koopmans transportation problem as described by Dantzig (1963). The data for this model includes a set of suppliers I and a set of markets J , with supplies ai, demands bj, transport costs cij from supplier i to market j. Cast as a planning problem, this linear program seeks a transport schedule which minimizes the cost of supplying ...

This paper considers a steady-state, link-based, fixed (or inelastic) demand equilibrium model with explicit link-exit capacities, explicit bottleneck or queuing delays and explicit bounds on queue storage capacities. The spatial queueing link model at the heart of this equilibrium model takes account of the space taken up by queues both when there is no blocking back and also when there is blo...

in accordance with the iranian government intention toward two step forward elimination of energy subsidies policy in coming years, we focus in this study on the extent by which the corresponding raising costs will be distributed across the livestock sector and how they affected food security. for this purpose, scenario of increasing energy prices and improving productivity at vertical and hori...

This document gives a short introduction into Spatial Equilibrium modeling with GAMS. 1. Intertemporal-Spatial Price Equilibrium Solving spatial equilibrium models by mathematical programming is pioneered by [9],[12], [11], and [13]. One of the most basic forms is the transportation problem, also known as the “Koopmans-Hitchcock” model. An example is found in the GAMS model library in trnsport....

In this work we propose a new model for spatial games. We present a definition of mobility in terms of the satisfaction an agent has with its spatial location. Agents compete for space through a noncooperative game by using mixed strategies. We are particularly interested in studyig the relation between Nash equilibrium and the winner strategy of a given model with mobility, and how the mobilit...

In this work we propose a new model for spatial games. We present a definition of mobility in terms of the satisfaction an agent has with its spatial location. Agents compete for space through a non-cooperative game by using mixed strategies. We are particularly interested in studyig the relation between Nash equilibrium and the winner strategy of a given model with mobility, and how the mobili...