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. 2021 Apr 29;6:14. doi: 10.1186/s41256-021-00197-0

Table 6.

The effect of tobacco tax on the prevalence of smoking

Model 1 Model 2 Model 3
L.Smoking 1.38*** 1.36*** 1.51***
(0.09) (0.06) (0.16)
GDP per cap. 0.08* 0.07*** 0.11**
(0.04) (0.03) (0.04)
Urbanization 0.23 0.25 0.40
(0.19) (0.17) (0.25)
Tax −0.09*** −0.09*** −0.13***
(0.03) (0.02) (0.05)
Death rate −0.29 −0.42**
(0.24) (0.19)
FDI −0.06
(0.04)
Constant −2.90** −0.28 0.20
(1.39) (2.32) (2.15)
Observations 144 144 144
Countries 24 24 24
Instruments 15 16 17
AR(2) −0.63 −0.66 0.74
AR(2) p-value 0.53 0.51 0.46
Hansen 5.59 6.16 3.22
Hansen p-value 0.35 0.29 0.67
Wald chi2 554.88 2118.66 3212.68
Wald chi2 p-value 0.00 0.00 0.00

L.Smoking refers to the first lag of smoking prevalence; Death rate and FDI are introduced in Models 2 and 3 to show the robustness of the effect of tax; AR (2) refers to second order-serial correlation test; Hansen refers to the test for overidentification; Robust standard errors in parentheses; * p < 0.1, ** p < 0.05, *** p < 0.01; For brevity, year dummies are not reported