Online peer-to-peer communities and online social networks have become increasingly popular. In particular, the recent boost of online peer-to-peer communities leads to exponential growth in sharing of user-contributed content which have brought profound changes to business and economic...

Online communities provide a social sphere for people to share information and knowledge. While information sharing is becoming a ubiquitous online phenomenon, how to ensure information quality or induce quality content, however, remains a challenge due to the anonymity of commentators. This...

Social media platforms such as Facebook show ads with popularity or general endorsement signals such as “likes”. Additionally, these ads can display social endorsement from friends (i.e., friends’ “likes”). This paper examines the effectiveness of displaying these different signals on...

Cyber-insecurity is a serious threat in the digital world. In the present paper, we argue that a suboptimal cybersecurity environment is partly due to organizations’ underinvestment and a lack of suitable policies. The motivation for this paper stems from a related policy question: how to...

In modern enterprise cloud computing environments, multiple services from first and third parties are often integrated to form coherent solutions for business customers. We seek to understand how disruptions in such multiple-vendor service models shape enterprise customers’ use of various IT...

Millions of dollars change hands daily through online auction markets. However, fraud has been on the rise in these markets. Using a game theoretic approach, we propose a design of an economic incentive mechanism, the trusted third party (TTP), to serve the online auction communities. The...

Prior research has generated considerable knowledge on information systems design from software engineering and user-acceptance perspectives. As organizational processes are increasingly embedded within information systems, one of the key considerations of many business processes —...

The capabilities of network technologies have facilitated the growth of electronic commerce. Major issues — notably, security and product quality uncertainty — still pose serious challenges to the further adoption of electronic commerce. Traditional market transactions have a long history...

For social networking platforms like Facebook, understanding the peer effects on it can be valuable to many applications, such as designing efficient advertisements with social endorsement. Therefore, we propose a statistical methodology that provides such understanding. These platforms contain...

We develop a system for grid computing where the price of computing tasks is determined by an audited market-exchange. We show a method to provide a variable certificate, called \witness," of program execution with the following property: If two different agents running the same program on the...