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Table 5 Regression results: sugar-sweetened beverage demand function

From: Sugar-sweetened beverage affordability and the prevalence of overweight and obesity in a cross section of countries

Dependent variable: sugar-sweetened beverage consumption per capita, Q
Equation (1)   Coefficient Std. Errora t-statistic
(Average) Price of sugar-sweetened beverages P −12.49* 1.98 −6.30
Gross national income per capita ln(YPC) 21.93* 2.27 9.68
(Average) Price of water PW 3.32 2.89 1.15
Index of ‘Western lifestyle’ WLS 46.96* 13.48 3.48
Constant = − 135.23, F-statistic = 86.67 (p < 0.01), Adj. R-squared = 0.71, n = 150
Equation (2)   Coefficient Std. Errora t-statistic
Sugar-sweetened beverage affordability ln(SBA) −24.11* 2.18 −11.06
(Average) Price of water PW −0.69 2.97 −0.23
Index of ‘Western lifestyle’ WLS 42.06* 12.52 3.36
Constant = 62.91, F-statistic = 109.08 (p < 0.01), Adj. R-squared = 0.69, n = 150
  1. Notes: ln(·) is natural log. * Denote p < 0.01
  2. aWhite’s heteroskedasticity-adjusted standard errors