Ríos Ibáñez, Vicente

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Ríos Ibáñez

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Vicente

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Economía

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Now showing 1 - 2 of 2
  • PublicationOpen Access
    Raising the accuracy of shadow economy measurements
    (Instituto de Estudios Fiscales, 2021) Ríos Ibáñez, Vicente; Gómez Gómez-Plana, Antonio; Pascual Arzoz, Pedro; Institute for Advanced Research in Business and Economics - INARBE; Gobierno de Navarra / Nafarroako Gobernua
    En este artículo se estima el tamaño de la economía sumergida en una región española (Navarra) para el período 1986-2016. Se han empleado métodos macroeconométricos indirectos, como el enfoque de Demanda de efectivo, dos métodos de Consumo de electricidad (inputs físicos) y el enfoque de Múltiples Indicadores y Múltiples Causas (MIMIC). Una característica diferencial del análisis empírico es la incorporación de varias innovaciones metodológicas (por ejemplo, el promediado bayesiano de modelos, un modelo de parámetros que varían en el tiempo, o la normalización de la variable latente) para refinar y aumentar la precisión de medición de cada uno de los métodos indirectos considerados. El patrón temporal del tamaño de la economía sumergida que surge de los diferentes enfoques es similar, lo que sugiere que las estimaciones obtenidas son sólidas y capturan la dinámica subyacente del sector oculto. Después de cuantificar la economía sumergida, se analizan sus determinantes mediante técnicas de promediado bayesiano de modelos. Encontramos que la evolución de la economía sumergida en Navarra puede explicarse por un conjunto pequeño y robusto de factores: la carga fiscal, el empleo en el sector de la construcción, la tasa de inflación, la pertenencia a la zona euro y la ratio del efectivo fuera de los bancos en relación a M1.
  • PublicationOpen Access
    Determinants of sport performance in European football: what can we learn from the data?
    (Elsevier, 2018) Zambom Ferraresi, Fabíola; Ríos Ibáñez, Vicente; Lera López, Fernando; Economía; Ekonomia
    Nowadays game-related statistics in the sports industry are demanded by coaches, players, managers, journalists, supporters, fans, video games developers, betting markets and academics. However, the employment of game related statistics to analyse performance in football (soccer) has inherent problems given it is a multifaceted and complex phenomenon. This study analyses the importance of a large number of possible determinants of sport performance in the 'Big Five' European football leagues during the period 2012/13-2014/15. To this end, Bayesian model averaging techniques and relative importance metrics are employed. The results obtained point to the existence of a set of robust determinants in sport performance. This set of drivers comprises (i) assists, (ii) shots conceded, (iii) saves made by the goalkeeper, (iv) the number of precise passes with respect to the total number of passes, and (v) shots on target. The results of the study support the idea that offensive actions are more relevant than defensive ones. In addition, we find the existence of some performance indicators that have usually been ignored by previous analyses, such as saves made by the goalkeeper and assists. These findings could help the decision-making process of the coaching, scouting and managerial units of football clubs. Finally, the modelling techniques employed in this context can be generalized to gain knowledge in other fields of knowledge to extract factors affecting complex problems from large data sets. This could be particularly interesting when previous research has not yet obtained a well-defined and robust set of factors explaining these complex problems.