We examine a kernel regression smoother for time series that takes account of the error correlation structure as proposed by Xiao et al. (2008). We show that this method continues to improve estimation in the case where the regressor is a unit root or near unit root process.

In this paper, we propose a model based on multivariate decomposition of multiplicative - absolute values and signs - components of several returns. In the m-variate case, the marginals for the m absolute values and the binary marginals for the m directions are linked through a 2m-dimensional...

Some middle-income economies, many of which Latin American, have not achieved to make the transition into high-income status for long years and are allegedly trapped in middle-income status. While there is considerable consensus on the proximate causes of this phenomenon, we present a global...