000			01405pab a2200169 454500
008			180718b2004 xxu||||| |||| 00| 0 eng d
100			_aRosenblat, Tanya S.
245			_aGetting closer or drifting apart?
260			_c2004
300			_ap.971-1009.
362			_aAug
520			_aAdvances in communication and transportation technologies have the potential to bring people closer together and create a "global village". However, they also allow heterogeneous agents to segregate along special interests, which gives rise to communities fragmented by type rather than by geography. We show that lower communication costs should always decrease separation between individual agents even as group-based separation increases. Each measure of separation is pertinent for distinct types of social interaction. A group-based measure captures the diversity of group preferences that can have an impact on the provision of public goods. While an individual measure correlates with the speed of information transmission through the social network that affects, for example, learning about job opportunities and new technologies. We test the model by looking at coauthoring between academic economists before and during the rise of the Internet in the 1990s. - Reproduced.
650			_aCommunication technology
700			_aMobius, Morkus, M.
773			_aQuarterly Journal of Economics
909			_a62239
999			_c62239 _d62239