Five alternative sets of predictions are presented of the total acreag
e of southern pine that would have been planted after clear-cut harves
t if existing government Forest Improvement Programs had made differen
t levels of cost-sharing available to nonindustrial private forest own
ers. The predictions illustrate the importance of separating and accou
nting for both the number of tracts enrolled and for the size of enrol
led tracts. Predictions are obtained from a profit maximization model
that represents the owner's decision as a simultaneous choice of refor
estation practice and size of tract to harvest and reforest.