n this paper we attempt to establish a nexus between migration decisions and selfassessed happiness, where migration is taken as a mechanism for revealing preferences. The happiness literature has proposed both economic and non-economic determinants of happiness which are very similar to the...

In this work we propose the combination of P-splines with traditional spatial econometric models in such a way that it allows for their representation as a mixed model. The advantages of combining these models include: (i) dealing with complex non-linear and non-separable trends, (ii) estimating...

This paper analyzes whether web search queries predict stock market activity in a sample of the largest European stocks. We provide evidence that i) an increase in web searches for stocks on Google engine is followed by a temporary increase in volatility and volume and a drop in cumulative...

Functional Regression has been an active subject of research in the last two decades but still lacks a secure variable selection methodology. Lasso is a well known effective technique for parameters shrinkage and variable selection in regression problems. In this work we generalize the Lasso...

This paper presents a general notion of Mahalanobis distance for functional data that extends the classical multivariate concept to situations where the observed data are points belonging to curves generated by a stochastic process. More precisely, a new semi-distance for functional observations...

We carry out an analytical investigation on the optimal portfolio policy for a multiperiod mean-variance investor facing multiple risky assets. We consider the case with proportional, market impact, and quadratic transaction costs. For proportional transaction costs, we find that a buy-and-hold...

In this paper we explore, analyse and apply the change-points detection and location procedures to conditional heteroskedastic processes. We focus on processes that have constant conditional mean, but present a dynamic behavior in the conditional variance and which can also be affected by...

OCDE publications in the early 1990s on Science-Technology-Economy alerted several member countries on the prediction of a future shortage of skilled researchers and its possible impact on the economy. Consequently, on the decade 1998-2009 the number of doctorates handed out in all OECD...

This paper proposes a new stochastic volatility model to represent the dynamic evolution of conditionally heteroscedastic time series with leverage effect. Although there are already several models proposed in the literature with the same purpose, our main justification for a further new model...

In this paper we define distance functions for data sets (and distributions) in a RKHS context. To this aim we introduce kernels for data sets that provide a metrization of the set of points sets (the power set). An interesting point in the proposed kernel distance is that it takes into account...