We study whether and how the availability of incremental time associated with retirement and unemployment affects the types of products households buy. For this, we develop a new theoretical model of the composition and size of the grocery shopping basket subject to money and time constraints....

Online question-and-answer platforms allow consumers to learn different perspectives of information and knowledge from content producers. Such platforms’ performance critically depends on both quantity and variety of knowledge contents generated by the crowd. This paper studies how early-stage...