2000 - [Elektronische Ressource]
, 2000.
4 Forrester Research, Inc., “Resizing Online Business Trade,” November 1998.
5 First-generation (1G) wireless phones … Economics, forthcoming.
7
Moreover, digital wireless has allowed new services, such as voice messaging, text mes-
saging, and …. Nolan and S. Bradley,
eds., Sense and Respond (Cambridge, Mass.: Harvard Business School Press, 1998), provides a method to …