The gamma distribution is an important probability distribution in statistics. The maximum likelihood estimator (MLE) of its shape parameter is well known to be considerably biased, so that it has some modified versions. A new modified MLE of the shape for the gamma distribution is proposed in...

The removal efficiency of antibiotic resistance genes (ARGs) is the biggest challenge for the treatment of erythromycin fermentation residue (EFR). In the current research, spray-dried EFR was composted with bulking materials, consisting of cattle manure and maize straw, at ratios of 0%...

Al-Cu-Li alloys are widely applied to fuel tanks that work under cryogenic temperature environments, so it is important to understand their flow behavior and microstructure evolution at cryogenic temperatures. We found that as the temperature decreased (ranging from 298 to 77 K), both the...

Purpose – The purpose of this paper is to propose and evaluate a new matching sample comparison method, the industry size peer matching method. Design/methodology/approach – Based on archival financial data from Compustat and econometric methods, the paper first validates that such a method...

This paper studies options on the minimum/maximum of two average prices. We provide a closed-form pricing formula for the option with geometric averaging starting at any time before maturity. We show overwhelming numerical evidence that the variance reduction technique with the help of the above...

This paper illustrates application of Bayesian inference to quantile regression. Bayesian inference regards unknown parameters as random variables, and we describe an MCMC algorithm to estimate the posterior densities of quantile regression parameters. Parameter uncertainty is taken into account...

This paper discusses the application of an index tracking technique to mutual fund replication problems. By using a tracking error (TE) minimization method and two tactical rebalancing strategies (i.e. the calendar based strategy and the tolerance triggered strategy), a multi-period fund...