We examine the small-sample behaviour of the maximum likelihood estimator for the Poisson regression model with random covariates. Analytic expressions for the first-order bias and second-order mean squared error for this estimator are derived, and we undertake some numerical evaluations to...

<em>Landoltia punctata</em>, a widely distributed duckweed strain with the ability to accumulate starch, was used as a novel feedstock for bioethanol production by <em>Saccharomyces cerevisiae</em>. To improve ethanol production, pectinase pretreatment was used to release much more glucose from <em>L. punctata</em> mash...

We consider the relative merits of various saddlepoint approximations for the c.d.f. of a statistic with a possibly non-normal limit distribution. In addition to the usual Lugannani-Rice approximation we also consider approximations based on higher-order expansions, including the case where the...

Despite the high CO2 emission intensity of fossil and especially coal fired energy production, these energy carriers will play an important role during the coming decades. The case study identifies the main technological trajectories concerning more efficient fossil fuel combustion and explores...

Purpose This study investigates the impacts of return channel type on the relationships between return service quality (RSQ) and customer loyalty (CL) in an omnichannel retailing environment. Design/methodology/approach Data comes from Chinese customers having a return experience in omnichannel...