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Fig. 3 | BMC Public Health

Fig. 3

From: Estimating the lagged effect of price discounting: a time-series study on sugar sweetened beverage purchasing in a supermarket

Fig. 3

Impulse response function showing the lagged effect of price discounting on the sales of a) soda, b) fruit drinks, c) sports and energy drinks, d) sweetened coffees and teas, and e) sweetened drinkable yogurts, with 95% Credible Interval indicated by the gray shaded area. The value at x = 0 represents the immediate effect represented by the posterior median of β, the percent change of sales during the period of 1 % discounting

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