The cross-national exchange of ideas and experience in health care ref
orm has, in recent years, reached epidemic proportions. Taking stock o
f this suggests the need for critical. caution. The various participan
ts in the process have different motives; models may be exported befor
e they have been fully tested; information may be sought chiefly as po
litical ammunition; and selective perception often distorts the eviden
ce. A mon helpful approach might be to concentrate on evaluating the e
xperience of countries over time, rather than concentrating on the lat
est fashionable panacea, and to focus more on the process of introduci
ng change.