With the rise of the sharing economy, more and more retailers have begun to join the e-commerce platform to expand sales channels. As an important means to improve consumer retention, the membership system is widely used in major e-commerce platforms. In this paper, we develop a research...

Identifying the individual and combined hydrological response of land use landscape pattern and climate changes is the key to effectively managing the ecohydrological balance of regions. However, the nonlinearity, effect size, and multiple causalities limit a causal investigation. Therefore,...

Based on the initial stage situation of new energy electric vehicles (electric vehicles) industry in China, this paper uses patents retrieval and literatures polymerization methods to analyze the technological innovation status quo and the regional distribution features in the electric vehicles...