Purpose – The purpose of this paper is to examine and quantify how various uncertainties result in different perceived risk dimensions that hinder mobile payment (m-payment) acceptance. Design/methodology/approach – An uncertainty-risk-value framework was proposed based on perceived risk theory, prospect theory, and perceived value theory. Structural equation modeling method was used to test the research model. Findings – Perceived information asymmetry, perceived technology uncertainty, perceived regulatory uncertainty, and perceived service intangibility are confirmed as the main determinants of perceived risk, while perceived performance risk, perceived financial risk, and perceived privacy risk were found to have strong negative effects on perceived value and acceptance intention. Practical implications – The findings may help businesses and policy makers better understand the sources of perceived risk and help support the development of appropriate strategies to mitigate the risk concerns consumers have regarding m-payment. Originality/value – Although the hindering effects of perceived risk regarding m-payment acceptance have been confirmed in previous studies, the sources of perceived risk were rarely investigated. By examining the determinants of perceived risk in m-payment acceptance, this paper offers insights into how consumers perceive risks when adopting new innovations. Additionally, it bridges the gap between the antecedents and consequences of perceived risk.

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Logistics is the bottleneck of online shopping, and logistics service quality (LSQ) has a great influence on consumer's purchase experiences. From consumer's perspective, the influences of LSQ on consumers' post-purchase behavior of online shopping were empirically studied. Structure Equation Model was adopted to examine the relations between LSQ and consumer's satisfaction, website image, complaints, and repurchase intention. Results show that LSQ has significant effects on satisfaction, website image, and complaints respectively; satisfaction and complaints significantly affect repurchase intention; and website image has no significant effect on repurchase intention but an obvious effect on satisfaction. The study improved LSQ theory and systematically explored the effects of LSQ on post-purchase behavior, and provided references for online stores to understand the role logistics service played in online shopping from consumer's view.