In service settings such as multiple listing for organ transplants and supermarkets with multiple checkout lines, some customers join multiple queues simultaneously, enabling them to receive service in any one of the queues. We study fairness in these systems: Does such multiple queue-joining...

Online shoppers often prefer to return items to stores (or “offline return”) than to mail them back. We study a new business practice, return partnership, wherein online retailers partner with store retailers to offer offline returns. We seek to identify when return partnerships benefit both...

Online sales continue to increase, so do product returns. Many online shoppers prefer to return products to stores rather than mailing them back. In order to offer the store return option to their customers, online retailers have started to collaborate with third-party retailers with physical...

Measures to limit the spread of COVID-19 have impacted retailers greatly. While many retailers temporarily closed their physical stores – due to stay-at-home orders and mandatory non-essential business closures – some online-only retailers witnessed higher sales. An omnichannel retailer is...

We investigate the effects of autonomous vehicles (AVs) on highway congestion. AVs have the potential to significantly reduce highway congestion, since these vehicles are able to maintain smaller inter-vehicle gaps and travel together in larger platoons (or batches) than human-driven vehicles...

When a government agency considers tightening a standard on a pollutant, the agency often takes into account the proportion of firms that are able to meet the new standard (what we refer to as the industry's "voluntary adoption level"), because a higher proportion indicates a more feasible...