Water footprint is a research hotspot in the field of water resource. Gray water footprint is important in the assessment of environmental effects on water resource. In this short communication, a new gray water footprint assessment method was proposed as: WFgray(α, β, ϒ). Here α is an index...

Bandable covariance matrices are often used to model the dependence structure of variables that follow a nature order. It has been shown that the tapering covariance estimator attains the optimal minimax rates of convergence for estimating large bandable covariance matrices. The estimation risk...

Extant research examines the extent to which bankruptcy has intra-industry valuation consequences. This study broadens the investigation by examining the wealth effects of distress and bankruptcy filing for suppliers and customers of filing firms. On average, important wealth effects occur prior...

This study performs a comprehensive evaluation of the objective quality of life (QOL) of the 31 provincial administrative divisions in Mainland China from 2006 to 2009 with principal component analysis (PCA). The objective QOL in China generally decreases gradually from the eastern coastal...

We investigate the effect of community structure on the evolution of cooperation in the prisoner’s dilemma and the snowdrift game with dynamical linking. We show both analytically and numerically that cooperators are generally more favorable on community networks than on networks without...

We examine the extent to which investment opportunities and/or mispricing motivate equity issuance and contribute to post-issue stock underperformance. We decompose market-to-book ratios into misvaluation and growth option components and find that issuing firms are both overvalued and have...