Papers by Antonio Ladrón-De-Guevara
Proceedings - Academy of Management, Aug 1, 2007
This study examines how the market potential for interacting communication technologies evolves a... more This study examines how the market potential for interacting communication technologies evolves along the diffusion processes as a consequence of the network effects. We estimate the alternative models using yearly data on three interacting technologies: fixed phones, mobile phones, and Internet, covering a total of 214 countries for the time period 1991-2003. The proposed specifications with network effects outperform the one with a constant market potential and produce better long-term predictions.
International Journal of Hospitality Management, 2014
Many consumers post on-line reviews, affecting the average evaluation of products and services. Y... more Many consumers post on-line reviews, affecting the average evaluation of products and services. Yet, little is known about the importance of the number of reviews for consumer decision making. We conducted an on-line experiment (n=168) to assess the joint impact of the average evaluation, a measure of quality, and the number of reviews, a measure of popularity, on hotel preference. The results show that consumers' preference increases with the number of reviews, independently of the average evaluation being high or low. This is not what one would expect from an informational point of view, and review websites fail to take this pattern into account. This novel result is mediated by demographics: young people, and in particular young males, are less affected by popularity, relying more on quality. We suggest the adoption of appropriate ranking mechanisms to fit consumer preferences. Age <25 yo 25+ yo <25 yo 25+ yo Sample size 161 45 41 31 44
SSRN Electronic Journal, 2008
This paper presents and estimates a dynamic choice model in the attribute space considering ratio... more This paper presents and estimates a dynamic choice model in the attribute space considering rational consumers. In light of the evidence of several state-dependence patterns, the standard attribute-based model is extended by considering a general utility function where pure inertia and pure variety-seeking behaviors can be explained in the model as particular linear cases. The dynamics of the model are fully characterized by standard dynamic programming techniques. The model presents a stationary consumption pattern that can be inertial, where the consumer only buys one product, or a variety-seeking one, where the consumer shifts among varied products. We run some simulations to analyze the consumption paths out of the steady state. Under
Journal of Economic Theory, 2013
We'd like to thank a referee and an Associate Editor of the Journal for valuable comments and sug... more We'd like to thank a referee and an Associate Editor of the Journal for valuable comments and suggestions. Part of the research was conducted when Chen and Lu are visiting Department of Economic, Washington University in St. Louis. They thank the hospitality offered by the Department, especially Ping Wang, the department chair.
Journal of Economic Dynamics and Control, 1997
This paper presents an account of the dynamics of endogenous growth models with physical capital ... more This paper presents an account of the dynamics of endogenous growth models with physical capital and human capital. We consider some important extensions of the basic framework of Lucas (1988) and Uzawa (1964), including physical capital in the human capital technology and leisure activities as an additional argument of agents' welfare.
Strategic Management Journal, 2013
Academy of Management Proceedings, 2007
International Transactions in Operational Research , 2014
ABSTRACT This paper focuses on iterated local search heuristics for the maximum cut-clique (or cl... more ABSTRACT This paper focuses on iterated local search heuristics for the maximum cut-clique (or clique neighborhood) problem. Given an undirected graph G=(V, E) and a clique C of G, the cut-clique is the set of edges running between C and V \C, establishing the cut (C,V \C). The maximum cut-clique in G is to find a clique with the largest number of edges in the neighborhood of the clique, also known as the maximum edge-neighborhood clique. This problem has been recently introduced in the literature together with a number of applications, namely in cell biology instances. However, it has only been addressed so far by exact methods. In this paper, we introduce the first approximate algorithms for tackling the maximum cutclique problem, compare the results with the exact methodologies and explore a new application within marketing analysis, providing a new alternative perspective for mining market basket problems.
Customer Needs and Solutions, 2014
In this study, we address an important issue largely ignored in existing diffusion research-the s... more In this study, we address an important issue largely ignored in existing diffusion research-the simultaneous diffusion of related (here, complementary) products across multiple interacting countries. In doing so, we demonstrate that incorporating prior diffusion of complementary products in an international framework leads to an enhanced substantive understanding of the evolution of crosscountry diffusion. The limited prior research on cross-product interactions has focused exclusively on a single country. We extend this research by building a more complete view of the role that prior diffusion of two interacting technologies play both within as well as across countries. Specifically, we decompose-on a country-by-country basis-the impact of three factors on the diffusion of any product: (a) prior diffusion of the product within each country, (b) prior diffusion of the same product in other counties, and (c) prior diffusion of a related product. This decomposition leads to a number of important strategic insights. We estimate and graph the three effects over time for each product and country using a comprehensive data set that covers the diffusion of PCs and the Internet over two decades-from 1981 to 2009-and across 19 countries. There are a number of interesting findings. First, we find that home PC diffusion was driven predominantly by local effects-the more individuals saw the penetration of home PCs grow locally, the greater the likelihood of adoption. Second, we find very different effects for the Internet-Internet adoption was driven by a combination of influences: (a) local network effects, (b) foreign network effects, and (c) cross-product effects. These results suggest that diffusion of one product can facilitate the diffusion of another product and that the impact can be asymmetric across products. When taken in aggregate, these results highlight the importance of incorporating and estimating cross-product effects in a multi-market new product diffusion context-one is able to obtain a more complete view of the impact of strategic decisions within a general diffusion process in markets that develop and evolve dynamically over time.
The main objective of this work is to propose an oligopolistic competition model that incorporate... more The main objective of this work is to propose an oligopolistic competition model that incorporates product differentiation through quality of service in the Spanish bank loans market. This model allows us to detect the competitive behavior patterns in terms of the output of all the financial entities with respect to three strategic groups defined in terms of size. This model of competitive interactions is tested with a sample of 100 firms in the Spanish bank loan market between 1992 and 1994. This period of time is characterized by both, the end of a long process of deregulation and the integration of the Spanish Banking System in the European Banking System. The findings evidence a stronger aggressiveness from the larger-size group when the medium and smaller-size groups increase their output. Besides, the results detect an aggressive conduct between the entities within the larger-size group.
International Journal of Research in Marketing, 2007
This paper presents and estimates an attribute-based choice model where pure inertial and pure va... more This paper presents and estimates an attribute-based choice model where pure inertial and pure variety seeking behaviors are incorporated as, sometimes transient, particular cases of a general utility function. In light of the evidence of several state-dependent patterns, the standard framework is extended by considering non-linear partial utilities that allow for a wide spectrum of behavioral patterns. Under the inverted-U hybrid utility assumption, the consumer behaves inertially among unfamiliar items, but eventually switches to variety-seeking behavior when a high level of familiarity with the implied attributes is approached. An empirical analysis is run using scanner databases for fabric softener, saltine cracker, and catsup product categories. Non-linear specifications provide the best fit of the data and reveal that the gradual trend, to seek variety as the level of familiarity with the purchased items increases, can be forecasted with higher predictive ability. The results confirm significant differences in the purchasing patterns across segments, as well as relevant segments presenting hybrid behavior for most attributes.
International Journal of Bank Marketing, 2010
... Felipe Ruiz-Moreno, Department of Business and Economics, CEU Cardenal Herrera University, El... more ... Felipe Ruiz-Moreno, Department of Business and Economics, CEU Cardenal Herrera University, Elche, Spain. ... A particular case is the Bertrand-Nash behaviour, when firm i does not expect any reaction from its rival j, ((∂ r cj p /∂r ci )=0). Therefore, conjectural variation ...
investigaciones económicas, 2009
How to cite Complete issue More information about this article Journal's homepage in redalyc.org ... more How to cite Complete issue More information about this article Journal's homepage in redalyc.org Scientific Information System Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Non-profit academic project, developed under the open access initiative
This paper presents a dynamic choice model in the attribute space considering rational consumers ... more This paper presents a dynamic choice model in the attribute space considering rational consumers that discount the future. In light of the evidence of several state-dependence patterns, the model is further extended by considering a utility function that allows for the di®erent types of behavior described in the literature: pure inertia, pure variety seeking and hybrid. The model presents a stationary consumption pattern that can be inertial, where the consumer only buys one product, or a variety-seeking one, where the consumer buys several products simultaneously. Under the inverted{U marginal utility assumption, the consumer behaves inertial among the existing brands for several periods, and eventually, once the stationary levels are approached, the consumer turns to a variety-seeking behavior. An empirical analysis is run using a scanner database for fabric softener and signi¯cant evidence of hybrid behavior for most attributes is found, which supports the functional form considered in the theory.
Management Research: Journal of the Iberoamerican Academy of Management, 2011
ABSTRACT Purpose – The purpose of this paper is to examine how the market potential for internet ... more ABSTRACT Purpose – The purpose of this paper is to examine how the market potential for internet services interacted historically with the diffusion process of fixed line and mobile telephony. Design/methodology/approach – The authors evaluate the historical interactions between internet, fixed line and mobile telephony using the International Telecommunications Union data set from 1991 until 2003 for 214 countries. Findings – It was found that between 1991 and 2003 mobile and internet services were fully complementary; fixed line facilitated the diffusion of internet service, but internet diffusion did not affect fixed line telephony. The authors discuss the implications of these results in the light of current developments of the telecommunications industry. Research limitations/implications – Internet adoption should be analysed in close relation to the adoption of other telecommunication services, such as fixed line and mobile telephony. Originality/value – The paper shows the interconnectivity of the internet with other telecommunication services and emphasizes the asymmetric nature of these interactions. Telecommunication services interactions are discussed in the light of recent industry developments.
Perceptual mapping of practical ethics along the value chain: A multiple correspondence analysis ... more Perceptual mapping of practical ethics along the value chain: A multiple correspondence analysis with industry and cultural indices as supplementary variables.
Perceptual mapping of practical ethics along the value chain: A multiple correspondence analysis ... more Perceptual mapping of practical ethics along the value chain: A multiple correspondence analysis with industry and cultural indices as supplementary variables.
Universia Business Review, 2006
En la última década la difusión de la telefonía móvil e Internet generó altos índices de crecimie... more En la última década la difusión de la telefonía móvil e Internet generó altos índices de crecimiento y rápido cambio tecnológico en la industria de las comunicaciones, mejorando así la productividad total de los factores y las ganancias de los grandes proveedores de servicios. Sin embargo, a pesar del tremendo impacto que tuvieron sobre el nivel de productividad, muchas de las empresas del sector no supieron aprovechar la mayor parte del valor económico creado. El débil desempeño financiero de muchas de ellas se atribuyó a la ausencia de practicas de previsión de Interacciones tecnológicas y efectos red: Claves para predecir el impacto del VOIP sobre la industria de las telecomunicaciones CODIGOS JEL: L86; M31
Forecasts of the diffusion paths are critically important when evaluating the launch of a new pro... more Forecasts of the diffusion paths are critically important when evaluating the launch of a new product. In the world of communications, predicting the adoption of products becomes an even more challenging and uncertain task as a consequence of the network externality effects. In this article we posit a diffusion model that, first, accounts for this effect by considering endogenous growth in the market potential: the bigger the size of the network of users, the higher the value of the products for other consumers, and second, accounts for the interaction effects between three technologies: fixed telephony, mobile telephony and Internet. We examine the level of fit of three functional forms for market potential: constant, exponential and linear, controlling for price and income effects. Using a dataset of 195 countries we find that firstly, mobile telephony and Internet are fully complementary; secondly, fixed telephony fosters the diffusion of mobile telephony, which on its turn cannibalises the diffusion of fixed phones; thirdly, fixed telephony facilitates the diffusion of Internet, but Internet diffusion does not have any significant effect on fixed telephony diffusion. These results can help build more robust scenarios to foresee the impact of the VOIP on the telecommunications industry.
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Papers by Antonio Ladrón-De-Guevara