Efforts to promote pollution control strategies by the government and the media can lower exposure to ambient pollution. However, few empirical studies have quantified multi-sectoral control measures using big data text mining algorithms to explore the relationship and mechanism between...

Purpose: This study aims to describe the general picture of the competition in multichannel expert services in duopoly market and discuss how the quality difference may affects the competition between service providers with different quality levels, where both providers offer face-to-face...