The objectives and assumptions of health care reform have changed repeatedl
y during the past century and may now be entering a new historical phase as
a result of the "new economy" rooted in information technology. In a high-
growth context, proponents of reform may no longer feel obliged to bundle e
xpanded coverage with tighter cost containment. At the same time, the new d
igital environment may facilitate innovations intended to inform and expand
consumer choice and to improve quality. The new environment elevates "tran
sparency" to a guiding principle. Health informatics has long been peripher
al to reform and must now become more central.