The measuring of market timing abilities in investment portfolios is a relevant and widely analyzed question. Since the traditional parametric methodology can lead to biased results, we apply the nonparametric approach trying to overcome these biases and compare the results obtained by both...

This work studies long-term autocorrelation asymmetries in the dynamics of crude oil markets for prices in the period from 1986 to 2014. Autocorrelations in crude oil price returns are quantified in terms of the Hurst exponent estimated with the rescaled range (R/S) method. The results obtained...

Meeting the goals of sustainable growth of food production and reducing rural poverty requires assisting family farmers to develop more productive, profitable, resource efficient and environmentally friendly farms. Faced with decreasing product prices and increasing production costs during the...

In this paper we derive the asymptotic properties of within groups (WG), GMM and LIML estimators for an autoregressive model with random effects when both T and N tend to infinity. GMM and LIML are consistent and asymptotically equivalent to the WG estimator. When T/N-0 the fixed T results for...

In this paper I present an empirical analysis of the dynamics of individual earnings using Spanish quarterly earnings. I propose a new econometric methodology to control for the seasonality in my dataset. Moreover, I apply this methodology to the study of earnings mobility in Spain, using...

When skilled labour is imported, skill levels of local workers may be raised by contact with new techniques and practices. European basketball offers an opportunity to test this general claim. For a panel of 47 countries observed over more than twenty years, we model probability of qualification...

When skilled labour is imported to work in a creative industry, local workers may benefit, in terms of their own level of skill, through contact with new techniques and practices. European basketball offers an opportunity to investigate the reality of this general claim. For a panel of 47...