Online product reviews posted by consumers are becoming a staple part of e-commerce websites. Researchers demonstrate that the volume and strength of online reviews, among others, have a significant impact on consumer responses. These studies have focused on the effect of text-based online reviews, but current information technologies enable the posting of online reviews with higher visual cont...

In this paper, we develop a Mean Empirical Likelihood (MeanEL) method for right censored data. This MeanEL approach is based on traditional empirical likelihood methods but uses synthetic data to construct an EL ratio statistics, which shown have χ2 limiting distribution. Different simulation studies show that the confidence intervals tend more accurate coverage probabilities than other existin...

This paper develops a new test statistic for parameters defined by moment conditions that exhibits desirable relative error properties the approximation of tail area probabilities. Our statistic, called tilted exponential tilting (TET) is constructed estimating certain cumulant generating functions under weights. We show asymptotic p -value TET can provide an accurate to infeasible saddlepoint ...