Click it,and increase hedonic consumption ratio: How does online shopping improve the long-term subjective well-being of consumers?

In the past few decades, consumers across the globe have become heavily reliant on e-commerce to purchase almost everything, from essential goods to hedonic goods. The prevalence of online shopping has significantly improved the consumption process and, by meeting consumers' needs, likely affects their long-term subjective well-being (SWB). Using individual-level data from the 2018 China Family Panel Studies, this study shows that online shopping enhances the long-term SWB of consumers by increasing their proportion of hedonic consumption. Consumer income can moderate the effect of online shopping on the long-term SWB of consumers, such that high consumer income can weaken this effect. In addition, the effect of online shopping on long-term SWB is stronger for rural consumers than for urban consumers. The authors close with a discussion of the implications of this study's findings for academics and policy makers.     

人类颜色视觉的计算理论

该文有机地结合了计算视觉理论和生态学视觉理论,指出颜色信息处理的根本任务是检测环境中的光不变量。在此基础上,作者提出了颜色视觉的计算理论以及计算理论本身的生物学标准。初级视觉计算是典型的不适定问题,动物的视觉系统则利用视环境中存在的条件将该不适定问题转化为定解问题。本文引入颜色视觉计算的免要条件,客观性约束,以及颜色认知的神经表象,证明了上述约束下颜色算法的存在性。本文给出了构造颜色知觉的基本假设。同时,该文还讨论了与上述问题密切相关的几个基本问题:神经表象的完备性,主观色觉的客观性,明度知觉和颜色知觉的统一,人类主观色觉的实现方式。