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Lock-in and the costs of switching mainframe computer vendors : what do buyers see?
Greenstein, Shane M., (1997)
Switching costs and bidding parity in government procurement of computer systems
Cabral, Luís M. B., (1990)
Did installed base give an incumbent any (measurable) advantages in federal computer procurement?
Greenstein, Shane M., (1993)
Invisible hands versus invisible advisors : coordination mechanisms in economic networks
Did computer technology diffuse quickly? : best and average practice in mainframe computers ; 1968 - 1983
Greenstein, Shane M., (1994)
From superminis to supercomputers : estimating surplus in the computing market