00282    a2200109   4500020001500000082001800015100001200033245004000045260004700085300002200132650001800154  a0521805007  a303.4833bSHY  aShy, Oz  aThe economics of network industries  aNew YorkbCambridge universityc2001g2001  axiii, 315p.c23cm  aSACIAL CHANGE