منابع مشابه
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...
متن کاملRating Friends Without Making Enemies
As online social networks expand their role beyond maintaining existing relationships, they may look to more faceted ratings to support the formation of new connections between their users. Our study focuses on one community employing faceted ratings, CouchSurfing.org, and combines data analysis of ratings, a large-scale survey, and in-depth interviews. In order to understand the ratings, we re...
متن کاملCooperation: Close Friends and Common Enemies
The Prisoner's dilemma game has been a key conceptual tool for analyzing social behavior for over 50 years. A recent study shows how the spatial scale of competition in this game critically determines when cooperation can emerge.
متن کاملSamuel Johnson: his ills, his pills and his physician friends.
Samuel Johnson (1709-1784) was one of the greatest men of his age. Although famed for his writings, especially his Dictionary and his folio on Shakespeare, he is remembered for his tavern conversations, his literary clubs and the great biography of his life by Boswell. He always enjoyed having physicians as his friends, and took a great interest in all branches of medicine. He would advise and ...
متن کاملThe sound of enemies and friends in the neighborhood.
Previous studies (e.g., Pecher, Zeelenberg, & Wagenmakers, 2005) found that semantic classification performance is better for target words with orthographic neighbors that are mostly from the same semantic class (e.g., living) compared to target words with orthographic neighbors that are mostly from the opposite semantic class (e.g., nonliving). In the present study we investigated the contribu...
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ژورنال
عنوان ژورنال: Bulletin of the American Geographical Society
سال: 1913
ISSN: 0190-5929
DOI: 10.2307/200544