This study examines the role of cultural values and political ideologies in the development of materialism, and the impact of materialism on subjective well-being, in the Chinese context. A survey was conducted of 487 persons in two cities in China and the results analyzed using structural...

For testing treatment effect with time to event data, combinations of several tests are often desired when the hazard functions of the two groups are nonproportional. Yang and Prentice [2005. Semiparametric analysis of short term and long term hazard ratios with two sample survival data....

A central limit theorem is given for functionals of the Kaplan--Meier estimator when the censoring distributions are possibly different or discontinuous. In the i.i.d. case only one easily interpretable and simple integrability condition is needed. This condition reduces to the usual condition...

For an open set [Theta] of k, let \s{P[theta]: [theta] [set membership, variant] [Theta]\s} be a parametric family of probabilities modeling the distribution of i.i.d. random variables X1,..., Xn. Suppose Xi's are subject to right censoring and one is only able to observe the pairs (min(Xi, Yi),...

In this note we draw attention to Watson's (1983) perturbation approach to random matrices, by which the asymptotic distribution of eigenvalues and eigenvectors can be derived in a very elegant way. We extend his result to functions of matrices and give some applications in principal component...