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Generating cluster submodels from two-stage stochastic mixed integer optimization models
Eguía Ribero, María Isabel; Garín Martín, María Araceli 
; Unzueta Inchaurbe, Aitziber (2018-10-22)
; Unzueta Inchaurbe, Aitziber (2018-10-22)
Stochastic optimization problems of practical applications lead, in general, to some large models. The size of those models is linked to the number of scenarios that defines the scenario tree. This number of scenarios can ...
Characterization of efficient networks in a generalized connections model with endogenous link strength
Olaizola Ortega, María Norma ; Valenciano Llovera, Federico (Departamento de Fundamentos del Análisis Económico I, UPV/EHU, 2019-05-09)
; Valenciano Llovera, Federico (Departamento de Fundamentos del Análisis Económico I, UPV/EHU, 2019-05-09)
We consider a natural generalization of Jackson and Wolinsky s (1996) connections model where the quality or strength of a link depends on the amount invested in it and is determined by a non-decreasing function of that ...
Efficiency of weighted networks
Olaizola Ortega, María Norma ; Valenciano Llovera, Federico (Fundamentos del Análisis Económico I, UPV/EHU, 2017-11-14)
; Valenciano Llovera, Federico (Fundamentos del Análisis Económico I, UPV/EHU, 2017-11-14)
In this paper, we address the question of the efficiency of weighted networks in a setting where nodes derive utility from their direct and indirect connections. Under rather general conditions, based on a set of assumptions ...
A Note on Efficiency in a Unifying Model of Strategic Network Formation
Olaizola Ortega, María Norma ; Valenciano Llovera, Federico (Departamento de Fundamentos del Análisis Económico I, UPV/EHU, 2018-05-15)
; Valenciano Llovera, Federico (Departamento de Fundamentos del Análisis Económico I, UPV/EHU, 2018-05-15)
The main point of this note is to provide a simpler and shorter proof of the result on efficiency in Olaizola and Valenciano (2017a) based on a result on efficiency of weighted networks in Olaizola and Valenciano (2017b). ...