Jul 12 2012 Umberto Triacca   On the limit of the variation of the explanatory variable in simple linear regression model   Abstract  Contact Information  Citation  Full Text  -  Note   Dec 11 2007 Terence Tai-Leung Chong   Estimating the Fractionally Integrated Model with a Break in the Differencing Parameter   Abstract  Contact Information  Citation  Full Text  -  Preliminary Result