Luis R. Izquierdo

Luis R. Izquierdo
Universidad de Burgos | UBU · Management Engineering

Industrial Engineering & Business and Economics

About

84
Publications
31,195
Reads
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1,456
Citations
Introduction
Luis R. Izquierdo is a Professor in Industrial Organisation with a background in Economics, Computer Modelling and Mathematics. His main area of expertise is game theory and the analysis of complex systems. Luis is currently lecturing Economics, Finance, Machine Learning, Complex Systems Modelling and Statistics at the University of Burgos (Spain)
Additional affiliations
October 2006 - present
Universidad de Burgos
Position
  • Lecturer
July 2002 - September 2006
James Hutton Institute
Position
  • Agent-based Simulation Modeller

Publications

Publications (84)
Article
Full-text available
The option to leave your current partner in response to his behavior, also known as conditional dissociation, is a mechanism that has been shown to promote the emergence and stability of cooperation in many social interactions. This mechanism, nevertheless, has always been studied in combination with other factors that are known to support cooperat...
Article
Full-text available
ABED is free and open-source software for simulating evolutionary game dynamics in finite populations. We explain how ABED can be used to simulate a wide range of dynamics considered in the literature and many novel dynamics. In doing so, we introduce a general model of revisions for dynamic evolutionary models, one that decomposes strategy updates...
Article
Full-text available
We study population game dynamics under which each revising agent tests each of his strategies a fixed number of times, with each play of each strategy being against a newly drawn opponent, and chooses the strategy whose total payoff was highest. In the centipede game, these best experienced payoff dynamics lead to cooperative play. When strategies...
Article
The market effects of quality variability and uncertainty have classically been studied in the particular context of asymmetric information, focusing on the sellers' expected behavior and the phenomenon of adverse selection. Looking instead at the consumers' expected behavior, this paper uses an agent-based model to illustrate how quality uncertain...
Article
We consider a family of population game dynamics known as Best Experienced Payoff Dynamics. Under these dynamics, when agents are given the opportunity to revise their strategy, they test some of their possible strategies a fixed number of times. Crucially, each strategy is tested against a new randomly drawn set of opponents. The revising agent th...
Article
Full-text available
Over the past few years, the scientific community has been studying the usefulness of evolutionary game theory to solve distributed control problems. In this paper we analyze a simple version of the Best Experienced Payoff (BEP) algorithm, a revision protocol recently proposed in the evolutionary game theory literature. This revision protocol is si...
Book
Full-text available
Terra Incognita se ha configurado como un Libro Blanco que pretende identificar tendencias y reflexionar sobre las diferentes concepciones y prácticas de la investigación no disciplinar en nuestro entorno académico (el Sistema Español de Ciencia y Tecnología). Esta es una transición que implica un cierto cambio de paradigma, muy alineado con la inv...
Article
Full-text available
We study a family of population game dynamics under which each revising agent randomly selects a set of strategies according to a given test-set rule; tests each strategy in this set a fixed number of times, with each play of each strategy being against a newly drawn opponent; and chooses the strategy whose total payoff was highest, breaking ties a...
Data
Online appendix. We describe how to run Monte Carlo simulations in ABED, and provide tables of the parameter values used in the examples presented in the main paper.
Data
YOU CAN DOWNLOAD THE LATEST VERSION OF THE SOFTWARE AT: https://luis-r-izquierdo.github.io/EvoDyn-3s/
Article
Fuzzy logic presents many potential applications for modelling and simulation. In particular, this paper analyses one of the most popular fuzzy logic techniques: Mamdani systems. Mamdani systems can look particularly appealing because they are designed to incorporate expert knowledge in the form of IF-THEN rules expressed in natural language. While...
Article
Full-text available
The outbreak of epidemics, the rise of religious radicalization or the motivational influence of fellow students in classrooms are some of the issues that can be described as diffusion processes in heterogeneous groups. Understanding the role that interaction patterns between groups (e.g. homophily or segregation) play in the diffusion of certain t...
Article
Full-text available
EvoDyn-3s generates phase portraits of evolutionary dynamics, as well as data for the analysis of their equilibria. The considered evolutionary dynamics are ordinary differential equations based on adaptive processes taking place in a population of players who are randomly and repeatedly matched in couples to play a 2-player symmetric normal-form g...
Chapter
This chapter shows how computer simulation and mathematical analysis can be used together to understand the dynamics of computer models. For this purpose, we show that it is useful to see the computer model as a particular implementation of a formal model in a certain programming language. This formal model is the abstract entity which is defined b...
Chapter
The aim of this chapter is to simulations. The reader with a set of concepts and a range of suggested activities that will enhance his or her ability to understand agent-based simulations. To do this in a structured way, we review the main concepts of the methodology (e.g. we provide precise definitions for the terms “error” and “artefact”) and est...
Article
Full-text available
We propose a new approach to evolutionary socio-economic dynamics base around competition between five "utopias" as central ideas about which to order society: capitalism, socialism, civil liberties, nature and nationalism. In our model, citizens contribute economic resources to support their preferred utopia, ans social dynamics are explained as a...
Conference Paper
Full-text available
Este trabajo presenta ABED (Agent-Based Evolutionary Dynamics), un software gratuito diseñado para facilitar la enseñanza y el aprendizaje de Teoría de Juegos Evolutiva. ABED permite realizar simulaciones computacionales de procesos dinámicos basados en la interacción entre individuos (o agentes) en poblaciones finitas. La dinámica evolutiva puede...
Conference Paper
Full-text available
Este trabajo presenta GSC (Generador de Supuestos Contables), una aplicación gratuita que genera el enunciado y la solución de un supuesto contable personalizado a partir de hechos económicos que introduce el usuario. El usuario puede elegir diferentes tipos de hechos económicos (p. ej. la aportación inicial de los socios, la solicitud de un présta...
Article
Full-text available
La economía artificial es uno de los métodos o enfoques de investigación para el estudio de sistemas socioeconómicos complejos con mayor crecimiento durante los últimos años. Este artículo presenta una visión crítica sobre sus características, su potencial y los riesgos relativos al uso de esta metodología. Para ello, encontramos útil relacionar y...
Article
Articial Economics is one of the fastest growing approaches to analyse complex socio-economic systems. In this paper we present our views on the distinguishing features of Artificial Economics and on its relation with Theoretical Economics - the field that in our opinion lies closest to Artificial Economics. In this context, we discuss various reas...
Article
Full-text available
Fuzzy Logic is a framework particularly useful to formalise and deal with imprecise concepts and statements expressed in natural language. This paper has three related aims. First, it aims to provide a short introduction to the basics of Fuzzy Logic within the context of social simulation. Secondly, it presents a well-documented NetLogo extension t...
Article
Full-text available
The so-called "Win-Continue, Lose-Reverse" (WCLR) rule is a simple iterative procedure that can be used to choose a value for any numeric variable (e.g., setting a price or a production level). The rule dictates that one should evaluate the effect on profits of the last adjustment made to the value (e.g., a price variation), and keep on changing th...
Article
Full-text available
We propose a new history-friendly approach to evolutionary socio-economic dynamics based around competition between five ‘utopias’, as central ideas about which to order society: capitalism, socialism, democracy, nature, and nationalism (Montgomery and Chirot 2015). In our model, citizens contribute economic resources to their preferred utopia, and...
Article
In this paper we present our views on the distinguishing features of Artificial Economics and on its relation with Theoretical Economics –the field that in our opinion lies closest to Artificial Economics. In this context, we discuss various reasons why conducting research on Artificial Economics may be worthwhile, and provide general guidelines on...
Data
5-minute introduction to the paper: "Leave and let leave: A sufficient condition to explain the evolutionary emergence of cooperation", downloadable at http://dx.doi.org/10.1016/j.jedc.2014.06.007
Article
Full-text available
Research from the Beagle Channel (Tierra del Fuego) offers a rich ethnographic and historical record produced by the late inclusion of Tierra del Fuego in the industrial world (the Beagle Channel was discovered by R. Fitz-Roy in 1830). This is an interesting frame for using new techniques (social simulation by Agent Based Modelling (ABM)) to genera...
Article
Full-text available
In this paper, we propose an industrial dynamics model to analyze the interactions between the price-performance sensitivity of demand, the sources of innovation in a sector, and certain features of the corresponding pattern of industrial transformation. More precisely, we study market concentration in different technological regimes and demand con...
Article
Full-text available
In this article, we seek to shed new light on the sources of industrial leadership and catch-up in science-based industries. We propose an evolutionary model that incorporates scientists’ training and migration, endogenous R&D decisions, and the possibility of funding capital accumulation through debt. The analysis of the model allows us to charact...
Chapter
Full-text available
This chapter shows how computer simulation and mathematical analysis can be used together to understand the dynamics of computer models. For this purpose, we show that it is useful to see the computer model as a particular implementation of a formal model in a certain programming language. This formal model is the abstract entity which is defined b...
Chapter
Full-text available
Why Read This Chapter? Given the complex and exploratory nature of many agent-based models, checking that the model performs in the manner intended by its designers is a very challenging task. This chapter helps the reader to identify some of the possible types of error and artefact that may appear in the different stages of the modelling process....
Article
Full-text available
This paper illustrates how a deterministic approximation of a stochastic process can be usefully applied to analyse the dynamics of many simple simulation models. To demonstrate the type of results that can be obtained using this approximation, we present two illustrative examples which are meant to serve as methodological references for researcher...
Article
Full-text available
We propose a model of technological transitions based on two different types of innovations. Branching innovations refer to technological improvements along a particular path, while recombinant innovations represent fusions of multiple paths. Recombinant innovations create “short-cuts” which reduce switching costs allowing agents to escape a techno...
Article
Full-text available
The replicator-mutator dynamics is a set of differential equations frequently used in biological and socioeconomic contexts to model evolutionary processes subject to mutation, error or experimentation. The replicator-mutator dynamics generalizes the widely used replicator dynamics, which appears in this framework as the extreme case where replicat...
Conference Paper
Full-text available
In this paper we present a teaching methodology for introducing students to the mean-field approximation. We also include some teaching material –in the form of computer models– that academics may want to use in their own lectures. The methodology emphasises the value of teaching students the intuition underlying the mean-field approximation in a g...
Article
Conditional dissociation, i.e. the option to leave an interacting partner in response to his behaviour, is a mechanism that has been shown to promote cooperation in several settings, but the fundamental features that make conditional dissociation work in this way are not yet fully understood. This paper identifies some of the key conditions that ma...
Article
Full-text available
This paper aims to contribute to the advancement of modelling endogenous changes of institutional rules (Ostrom 2006) within social groups. We understand that changes in institutional rules can be modelled exogenously or endogenously. Modelling rule changes exogenously means that it is the modeller who explicitly defines when and what institutional...
Article
Full-text available
En este artículo analizamos un conjunto de tecnologías de información y comunicación con evidentes aplicaciones en la docencia universitaria, y que en nuestra opinión son especialmente útiles en el proceso de adaptación de las enseñanzas universitarias al nuevo Espacio Europeo de Enseñanza Universitaria (EEES). Además discutimos las modalidades de...
Article
a b s t r a c t While research-article impact is routinely judged by citation counts, there is recognition that a much broader view is needed to better judge the true value of citations. This paper applies a developing framework based on the application of network theory, where the network consists of journal articles on arid-systems research which...
Article
Full-text available
Este trabajo presenta una herramienta didáctica diseñada para facilitar la realización de prácticas participativas con alumnos vía Internet. La herramienta se centra en el aprendizaje de conceptos y problemas propios de las interacciones sociales. El programa desarrollado se ofrece gratuitamente a la comunidad académica en la direcciónhttp://www.i...
Conference Paper
This paper proposes a novel approach to study legal interactions. In particular, we focus on cases of medical liability and investigate the mechanisms governing legal litigations in different judicial environments. To do that, we use an agent-based model where lawyers are explicitly and individually represented in the model. Lawyers in the model ar...
Article
Full-text available
The objectives of this paper are to define and classify different types of errors and artefacts that can appear in the process of developing an agent-based model, and to propose activities aimed at avoiding them during the model construction and testing phases. To do this in a structured way, we review the main concepts of the process of developing...
Article
Full-text available
The aim of this paper is to assist researchers in understanding the dynamics of simulation models that have been implemented and can be run in a computer, i.e. computer models. To do that, we start by explaining (a) that computer models are just input-output functions, (b) that every computer model can be re-implemented in many different formalisms...
Article
All substantive areas of law with no exception have a common concern for the processes by which legal disputes get resolved. Naturally, the success of any particular litigation strategy in a legal dispute depends on a number of factors. Examples of influential factors are procedural costs, the judge's accuracy and, most importantly, the litigation...
Article
Full-text available
Este trabajo compara dos técnicas de modelado de sistemas complejos: la simulación basada en agentes y la dinámica de sistemas. Esta comparación se lleva a cabo dentro del marco general del proceso de modelado científico. Los autores concluyen que la principal diferencia entre las dos metodologías se encuentra en el proceso de abstracción que cada...
Article
Full-text available
Agent-based modeling is being increasingly used to simulate socio-techno-ecosystems that involve social dynamics. Humans face constraints that they sometimes wish to challenge, and when they do so, they often trigger changes at the scale of the social group too. Including such adaptation dynamics explicitly in our models would allow simulation of t...
Article
Full-text available
In this paper we replicate and advance Macy and Flache\'s (2002; Proc. Natl. Acad. Sci. USA, 99, 7229–7236) work on the dynamics of reinforcement learning in 2×2 (2-player 2-strategy) social dilemmas. In particular, we provide further insight into the solution concepts that they describe, illustrate some recent analytical results on the dynamics of...
Chapter
Full-text available
This chapter has characterised the behaviour of the Bush-Mosteller (Bush & Mosteller, 1955) aspiration-based reinforcement learning model in 2x2 games. The dynamics of this process depend mainly on three features: The speed of learning. The existence of self-reinforcing equilibria (SREs). SREs are states which are particularly relevant for the ultr...
Article
Full-text available
This paper describes EVO-2x2, a computer simulation modelling framework designed to formally investigate the evolution of strategies in 2-player 2-strategy (2x2) symmetric games under various competing assumptions. EVO-2x2 enables the user to explore the implications of alternative assumptions (all of which are fully consistent with the essence of...
Article
Full-text available
El Laboratorio de Teoría de Juegos en Internet es una aplicación pensada y desarrollada para llevar a cabo juegos en red con una clara finalidad didáctica. La versión que describimos permite llevar a cabo experimentos con dos juegos clásicos en la Teoría de Juegos: el Dilema del Prisionero (DP) y la Tragedia de los Comunes (TC). Los alumnos partici...
Article
Full-text available
This thesis advances game theory by formally analysing the implications of replacing some of its most stringent assumptions with alternatives that –at least in certain contexts– have received greater empirical support. Specifically, this thesis makes two distinct contributions in the field of learning game theory and one in the field of evolutionar...
Article
Full-text available
Neurocirugía publishes a printed edition for subscribers, and also an electronic edition which is available online free of charge. The coexistence of these two formats raises some issues regarding their justification and their future evolution, e.g. why does a subscription- based journal offer free online access? Would it be wise to charge for -or...
Article
Full-text available
Neurocirugía publica una edición impresa por suscripción y una edición electrónica en Internet de acceso gratuito. La convivencia de estos dos esquemas plantea algunos interrogantes sobre su justificación y sobre su evolución esperada, tales como ¿Por qué un acceso de pago y otro gratuito? ¿Conviene cobrar o limitar el acceso electrónico? ¿Cómo cam...
Article
Full-text available
Experimental Economists have designed over the years a wide range of scientific experiments that can be usefully employed nowadays as teaching aids. The interactive and participatory nature of such experiments serves as a motivation to students, stimulates their own thinking, and enhances their insights into the forces that drive economic markets:...
Article
Full-text available
La Economía Experimental ha desarrollado diferentes experimentos que pueden ser aprovechados como una actividad docente en la enseñanza de la Economía. Su naturaleza activa y participativa motiva a los alumnos y estimula la reflexión y la mejor comprensión de algunos fenómenos económicos como el funcionamiento de los mercados, donde los resultados...
Article
Reinforcement learners tend to repeat actions that led to satisfactory outcomes in the past, and avoid choices that resulted in unsatisfactory experiences. This behavior is one of the most widespread adaptation mechanisms in nature. In this paper we fully characterize the dynamics of one of the best known stochastic models of reinforcement learning...