Table 1

 Estimated effects of the smoke-free law

VariableTotal revenues (weighted least squares) ($million)Average revenue per machine (ordinary least squares) ($/machine)
EstimateSEp ValueEstimateSEp Value
Plaw(unit/month)−2.4043.3020.468−1158.11745.100.123
Time (unit/month)0.6120.102<0.00196.4736.700.010
Time2 (unit/month2)−0.0050.001<0.001−0.310.2780.259
Machines (unit/machine)0.0030.0010.024−2.424−2.762<0.001
Income (unit/$million)7.5681.087<0.00110717.00467.00<0.001
Winter−4.1470.872<0.001−1353.01314.79<0.001
n101101
R 2 0.6690.639