Nonparametric correlation measures at the Kendall and Spearman correlation are widely used in the behavioral sciences. These measures are often said to be robust, in the sense of being resistant to outlying observations. In this note we formally study their robustness by means of their infuence...

In this note we study the problem of estimating the parameters of the conditional median function at elliptical models. For this we use positive-breakdown estimators of multivariate location and scatter, and obtain influence functions and asymptotic variances of the resulting slope and...

This paper analyses whether the current provision of air services in Europe is impacted by high-speed rail (HSR). An ex-post analysis is carried out covering a large sample of 161 routes EU-wide using transnational data. We use censored regressions with special attention paid to the presence of...

Contrasting with extant research centred on the organizational challenges of sourcing services in culturally distant countries, we show that cultural differences between home and host countries do not prevent firms from achieving their cost savings targets. Instead, the effect is positive, both...