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Factores de riesgo y supervivencia libre de tumor en pacientes con trasplante renal de cadáver
(2003)
[Background] There is an agreement in the fact that cancer incidence in transplant recipients increases at a rate disproportionately greater than in the general population. Several clinical studies have identified cancer ...
Productivity's development in the Basque Economy during the period 1985-1994
(1998-09)
[EN] The aim of this paper is to analyse the development of Basque Country's economy's productivity in the period 1985-1994 and, identify which are the factors that decide that evolution. We specify a Cobb-Douglas production ...
A Fundamental Contradiction in Standard Rent Theory: A Case Study on Varian's "Intermediate Microeconomics"
(2004)
In this paper, I examine Varian’s treatment of rent in his textbook on Microeconomics. I argue that he holds contradictory conceptions: sometimes rent is defined as surplus over cost whereas sometimes it is defined as cost, ...
Generating cluster submodels from two-stage stochastic mixed integer optimization models
(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 ...
Generating cluster submodels from a multistage stochastic mixed integer optimization model using break stage
(2013-07)
We present a scheme to generate clusters submodels with stage ordering from a (symmetric or a
nonsymmetric one) multistage stochastic mixed integer optimization model using break stage. We
consider a stochastic model ...
Entrada endógena ineficiente
(2002-07)
[EN] Stewart (1994) presents a model of endogenous entry. In his article Stewart proposes the following topic for future research: "An important feature of the model is that entry would be inefficient from the producers' ...
KAF: Kyoto Annotation Framework
(2009)
This document presents the current draft of KAF: Kyoto Annotation
Framework to be used within the KYOTO project. KAF aims to provide a reference
format for the representation of semantic annotations.
Measuring the Effect of the Real Estate Bubble: a House Price Index for Bilbao
(2011-11)
A spatio-temporal model is proposed aimed at producing an index of housing prices. A hedonic model with geographically varying coefficients is coupled with a non parametric estimation of the trend, whence a price index is derived.
Predicting Betas: Two new methods
(2009)
Betas play a central role in modern finance. The estimation of betas from historical data and their extrapolation into the future is of considerable practical interest. We propose two new methods: the first is a direct ...
Multivariate Data Imputation using Trees
(2002)
We address the problem of completing two files with records containing a fully observed common subset of variables. The tecnique investigated involves the use of regression and/or classification trees. An extension of ...