Emotional among friends

Bidding among friends and enemies∗

We consider an auction setting in which bidders, even if they fail to obtain the good, care about the price paid by the winner. We study the impact of these price externalities on the first-price auction and the second-price auction in a symmetric information framework. We establish a distinction between price externalities that do not depend on the identity of the winner and price externalitie...

Irony in Talk Among Friends

BlockParty: Cooperative offsite backup among friends

We are keeping an increasing amount of valuable data in digital format only. Offsite backup systems are ideal for ensuring that such irreplaceable personal information will be preserved in the face of disk failures, unexpected disastrous events and operator mistakes. It is time to bring offsite backup solutions, traditionally a luxury to only deep pocketed enterprises, to the masses of home use...

Pre-travel Health Care Utilization Among Travelers Who Visit Friends and Relatives

Introduction: Immigrants to the United States who return home to visit friends and relatives (VFRs) have high rates of travel-related infections. The data on VFR utilization of pre-travel health care is inadequate. The objective of this study was to describe the travel patterns and adherence to pre-travel recommendations of VFRs.Methods: This retrospectiv...

Measuring Coverage and Divergence of Reading Behaviors Among Friends

Given data from an online friendship network (e.g., the Facebook social network) and its social reader (i.e., a reading application deployed on a social network), how can we e↵ectively capture the similarities between the reading behaviors of a user and her friends over time? Also, how can we e↵ectively summarize such similarities across users? For the first question, we are interested in measu...