Companies frequently offer wholesale prices for their products that decrease with the number of purchased items. However, single buyers may not be willing or able to purchase large quantities of a single item. Nevertheless, consumers can form groups to purchase at wholesale prices, obtaining...

The COVID-19 pandemic has caused great disruption to the service sector, which has in turn adapted by implementing measures that reduce physical distancing among employees and users; examples include home-office work and the setting of occupancy restrictions at indoor locations. The design of...