Usually, resources are short in supply when earthquakes occur. In such emergency situations, disaster relief organizations must use these scarce resources efficiently to achieve the best possible emergency relief. This paper therefore proposes a multi-objective, multi-mode, multi-commodity, and...

Standard methods for optimal allocation of shares in a financial portfolio are determined by second-order conditions which are very sensitive to outliers. The well-known Markowitz approach, which is based on the input of a mean vector and a covariance matrix, seems to provide questionable...

Purpose ‒ The aim of this paper is to demonstrate the application of robust techniques to the estimation of hedonic house price indexes.Design/methodology/approach ‒ We use simulation analysis to compare an index estimated using ordinary least squares (OLS) with several indexes estimated...