An extension of the Moulin No Show Paradox for voting correspondences

In this article, we analyse the possibility of extending the Moulin theorem to Condorcet voting correspondences. Moulin (1988) established that every Condorcet voting function suffers from the No Show Paradox, or Abstention Paradox, which means that in some voting situations some voters would achieve a better result by abstaining (in other words, could manipulate the election by abstaining). This problem is similar to that of extending the Gibbard–Satterthwaite theorem on voting manipulation through casting an insincere ballot to voting correspondences. The main result of the paper states that for every Condorcet voting correspondence there are situations in which every optimistic or pessimistic voter with some preferences could manipulate the election by abstaining. Another result states, by counterexample, that some Condorcet voting correspondences are free from the Abstention Paradox from the point of view of other types of voters.     

The “Big Bang” of the populist parties in the European Union: The 2014 European Parliament election

A significant number of voters are turning their backs on traditional parties. The stability of European party systems is being defied by a growing number of (new) radical parties, whose presence in the European Parliament has never been as strong as it is now. Faced with the worst global economic crisis of the last 80 years and with growing socio-economic inequalities, a series of political groups, referred to as populists, have secured almost a quarter of the seats in the European Parliament. This paper aims to highlight some of the reasons why these parties attract so much support and to reach a better understanding, from a comparative perspective, of the profile of these electorates as well as their motivations and aspirations. The analysis is based on the study of microdata (N?=?30,064) from the European Election Study 2014 conducted in the EU after the European elections of 2014.     

On the convergence of two sequential Monte Carlo methods for maximum a posteriori sequence estimation and stochastic global optimization

This paper addresses the problem of maximum a posteriori (MAP) sequence estimation in general state-space models. We consider two algorithms based on the sequential Monte Carlo (SMC) methodology (also known as particle filtering). We prove that they produce approximations of the MAP estimator and that they converge almost surely. We also derive a lower bound for the number of particles that are needed to achieve a given approximation accuracy. In the last part of the paper, we investigate the application of particle filtering and MAP estimation to the global optimization of a class of (possibly non-convex and possibly non-differentiable) cost functions. In particular, we show how to convert the cost-minimization problem into one of MAP sequence estimation for a state-space model that is “matched” to the cost of interest. We provide examples that illustrate the application of the methodology as well as numerical results.     

A Matter of Learning: How Human Resources Affect Organizational Performance

Recently, a number of studies have tried to examine the processes that explain the influence of high performance work systems (HPWS) on company performance, in an attempt to understand which variables mediate this relationship and to what extent they do so. The importance of the organizational learning capability (OLC) construct has traditionally been outlined as being essential for a company's survival and effective performance. Thus, it seems important to establish whether HPWS can be considered an antecedent of OLC, and consequently to confirm whether OLC acts as a mediating variable in the HPWS–company performance linkage. Bearing in mind that HPWS represent a ‘bundle’ of mutually reinforcing, overlapping and synergistic individual human resource practices, this positive connection between HPWS and OLC seems reasonable. We tested our hypotheses by applying a structural equation methodology to a sample of 163 Spanish companies. Our findings show that the effects of HPWS on organizational performance are mediated by OLC.     

Nudging the particle filter

Statistics and Computing - We investigate a new sampling scheme aimed at improving the performance of particle filters whenever (a) there is a significant mismatch between the assumed model...     

The Standard of Living of the Workers in a Spanish Industrial Town: Wages,Nutrition, Life Expentancy and Heigth in Alcoy (1870–1930)

This is the first study that empirically examines how migration influences migrants’ time use patterns in China, utilizing a mixed-method approach. We systematically estimate the migration effects on weekly hours on working, leisure, personal care and domestic responsibilities, based on data from the nationally representative 2010 Chinese Family Panel Studies. We then supplement these analyses with in-depth interviews conducted in Beijing to further understand the underlying mechanisms. Compared with urban locals, rural-to-urban migrants have longer work hours and less leisure time. The largest differences are found among men. On average, migrant men work 5 h longer and have 7 fewer hours of leisure per week than urban local men. These differences are moderated by migrants’ and their parents’ socioeconomic status, and their family responsibilities. The in-depth interviews reveal that the busier work schedules are largely motivated by the transient nature of most rural-to-urban migration and the overwhelming economic pressures for household establishment and career development.     

Organicity and performance in excellent HRM organizations: the importance of organizational learning capability

Organizational learning capability is a key element in organizational performance. This issue spurs interest to discover how to generate environments with high organizational learning capability. In this paper, we analyze the relationship between the degree of organicity of the structure, organizational performance and organizational learning capability. A total of 251 firms with demonstrated excellence in human resource management took part in the study. Results suggest that the degree of organicity of the structure has a positive relationship with performance perceptions and this relationship is fully mediated by organizational learning capability.     

Two-sided market situations with existing contracts

The main aim of this paper is to study two-sided market situations where there are existing contracts which are exogenously given. These existing contracts could come from a previous competitive period or from any other circumstances. In any case, all these existing contracts provide an initial feasible solution for the two-sided market situation, perhaps non optimal in the sense the agents do not obtain jointly the maximum profit that they could get by cooperation. Therefore, the agents could be interested in improving their results through cooperation but taking into account the existing bilateral contracts. Thus, taking as starting point what each agent has got with the existing contracts, they have to distribute among themselves the extra amount that they could get by cooperation. For this kind of cooperative situation we propose different models and prove some results about the nonemptiness of the core and its relationship with the Owen set.     

Small Fish in a Big Pond or Big Fish in a Small Pond? The Effects of Educational Mismatch on Subjective Wellbeing

This paper analyzes the effects of educational mismatch on subjective wellbeing. We first analyze whether a discrepancy exists between the aspirations associated with the level of education acquired by the individuals and the opportunities found in the labor market. Consistent with education generating certain aspirations, we find that educational mismatch has a sizable significant negative impact on life satisfaction for over-educated individuals while the effect is positive for under-educated workers. Next, we focus on workers with different educational levels but who perform similar jobs. In this case we only find under-education to negatively affect life satisfaction levels, a result which is consistent either with the existence of an inferiority complex or a struggle to perform a job for which the individual is not adequately trained. The effects are economically relevant and amount between one-fifth and one-fourth of the impact produced by other negative life events such as unemployment.