Table 5.
Regression results: sugar-sweetened beverage demand function
| 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 | ||||
Notes: ln(·) is natural log. * Denote p < 0.01
aWhite’s heteroskedasticity-adjusted standard errors