SMOKE.DES educ cigpric white age income cigs restaurn lincome agesq lcigpric Obs: 807 1. educ years of schooling 2. cigpric state cigarette price, cents per pack 3. white =1 if white 4. age in years 5. income annual income, $ 6. cigs cigs. smoked per day 7. restaurn =1 if state restaurant smoking restrictions 8. lincome log(income) 9. agesq age^2 10. lcigpric log(cigprice)