Using a sample of New York nonscheduled permanent disability claims, t
his article estimates the probability of controversion (the act of den
ying liability for a workers' compensation claim) and the conditional
probability of benefit reductions initiated by insurers. The data sugg
est that insurers are more likely to adjust claims where the probabili
ty of a successful adjustment (i.e., an adjustment that is upheld by t
he workers' compensation board) is high. Although there is some eviden
ce that insurers are more likely to adjust more costly claims, benefit
levels are negatively related to adjustment probability, contrary to
expectations. These results indicate that insurers are less likely to
adjust high benefit claims since these claimants are more likely to re
sist adjustment efforts.