Peng, L2015-12-130167-7152http://hdl.handle.net/1885/92045In this paper we shall give an alternative derivation of the coefficient of tail dependence introduced by Ledford and Tawn [1996, Biometrika 83, 169-187] and propose a consistent estimator, which is asymptotically normal.Keywords: Bivariate extremes; Coefficient of tail dependence; Extreme value theory; Regular variation19992015-12-12