Charities increasingly utilize social media tools in fundraising. This research studies three mechanisms by which Facebook “likes” affect charitable behavior: (1) signaling, (2) commitment escalation, and (3) social contagion. The first study manipulates the number of Facebook likes on a...

Online freelance marketplaces are websites that match buyers of electronically deliverable services with freelancers. While freelancing has grown in recent years, it faces the classic ‘information asymmetry’ problem – buyers face uncertainty over seller quality. Typically, these markets...

The World Wide Web (“WWW”) is a dominant force in the lives of many. It provides access to a range of services and information from email access to shopping to social media to instant information on search engines like Google. For most persons using the WWW, this is all that there is to the...

We examine the intersection of two major trends at online retail platforms: the emergence of retail media, which allows sellers to advertise on retail platforms alongside selling their products, and the platforms' switch away from reselling towards marketplace formats. We study whether and when...

Many Internet markets rely on quot;feedback systemsquot;, essentially social networks of reputation, to facilitate trust and trustworthiness in anonymous transactions. Market competition creates incentives that arguably may enhance or curb the effectiveness of these systems. We investigate how...

This paper studies stylized models of multi-unit uniform-price dynamic auctions and posted price, two selling mechanisms popular with peer-to-peer lending platforms, in a setup with common value and independent private signals. The models have two novel features: an "All-or-None" transaction...

This paper contains our personal observations on the CMA's Interim Report on its Market Study on Online platforms and digital advertising (the “Interim Report”). As a starting point, we are very impressed by the quality of the Interim Report as it correctly identifies the competition issues...

I appreciate the opportunity to submit observations on the Statement of Scope (“SOS”) of the Market Study on “Online Platforms and Digital Advertising”. This Market Study is welcome given the importance of digital advertising for online content providers (which I will refer to as...

The advertising efforts in social networks grow every year. Since their appearance in the late 1990s Social Network Web Sites were considered as a uniform group. The only differentiation factors were the number of users and the amount of traffic passed through the site. This paper classifies the...

Virtual Worlds seem to offer firms new opportunities for managing the convergence among technology, organization and business. The complex relation between people and their avatars and the capability to engage users into active participation yielded relevant insights in marketing and business...