Analysis of monthly data for January 1980 through December 1990 provid
es evidence that an American Soybean Association (ASA) promotional cam
paign focusing negative attention on the health issue of tropical oils
induced structural change in US domestic consumption of edible palm a
nd coconut oils. Evidence strongly suggests that the decline in tropic
al oil imports and consumption can be attributed to processor changes
in inputs resulting from perceived consumer responses to the ASA healt
h issues campaign. The study found prices of tropical oils to be insig
nificant in determining short-run soybean and cottonseed oil demand. C
onversely, such domestic commodity promotion campaigns may have devast
ating short-term impacts on imports, which in turn are significant to
the exports of a small number of producing countries. If the perceived
negative attributes are less serious than implied, counter-promotion
may diminish consumers' concerns over time or create new product marke
ts, and declining tropical oil imports might be only temporarily affec
ted.