a non-profit institution devoted to research on network industries, electronic commerce, telecommunications, the Internet, " virtual networks " comprised of computers that share the same technical standard or operating system, and on network issues in general. I n c o l la b o r a t ion w i t h Introduction C h a p t e r 1 : A s u m m a r y o f f i n d in g s 4 C h a p t e r 2 : Evolution of in...

This paper proposes to incorporate product customization in the Maskin and Riley (1984) nonlinear pricing model in order to capture major features of mobile service data. In particular, consumers are characterized by a two-dimensional type. One dimension is observed by the provider and integrates product customization, while the other is a standard parameter of adverse selection, which is unobs...

Social broadcasting networks like Twitter in the U.S. and “Weibo” in China are transforming the way online word-of-mouth is disseminated and consumed in our society. We investigate whether and how Twitter WOM affects movie sales using publicly available Twitter data and common text mining algorithms. We find that more Twitter WOM messages always leads to more movie sales, however, the magnitude...

Neutrophils are arguably the most important white blood cell for defense against bacterial and fungal infections. These leukocytes are produced in high numbers on a daily basis in humans and are recruited rapidly to injured/infected tissues. Phagocytosis and subsequent intraphagosomal killing and digestion of microbes have historically been the accepted means by which neutrophils carry out thei...