We estimate the increment in Massachusetts Medicaid program costs attributa
ble to smoking from December 20, 1991 to 1998. We describe how our methods
improve upon earlier estimates of analogous costs at the national level. Cu
rrent costs to the Massachusetts Medicaid program approximate the payments
to Massachusetts under the tobacco settlement of November 1998. Whether the
se payments are viewed as appropriate compensation for Medicaid costs over
time depends upon the rate of increase in future health care costs, the rat
e of decline in smoking, the proportion of smoking that should be attribute
d to the actions of the tobacco companies and the likelihood the state woul
d have prevailed at trial. The costs to the Medicaid program are dwarfed by
the internal costs to smokers themselves.