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Table 3 Competitive barrier effects

From: Pass-through and competition: the impact of soft drink taxes as seen through Mexican supermarkets

  2 km radius
(1) (2) (3) (4)
Soda Juice Sports drinks Powder mix
Shifting parameter 1.13*** [0.019] 0.25*** [0.032] 1.55*** [0.109] 0.24*** [0.014]
Interaction (tax X competition) − 0.05*** [0.016] 0.01 [0.027] − 0.09 [0.119] 0.02 [0.012]
No. of observations 68,193 35,964 11,384 10,592
R-squared 0.305 0.011 0.114 0.148
  1. Pijt = FE + α1*IEPS2014 +δ1 * Compj + δ2 * (IEPS2014 * Compj) + uijt
  2. Shifting parameter refers to the shifting magnitude in Mexican pesos. Standard errors are clustered by establishment and presented in brackets. ***p < 0.01, **p < 0.05, *p < 0.1. All regressions include interaction (Establishment-Specific X Product Type X Brand X Product Content) and monthly fixed effects (FE). In addition, all estimations include a dummy variable signaling 2012 prices
  5 km radius
(5) (6) (7) (8)
Soda Juice Sports drinks Powder mix
Shifting parameter 1.13*** [0.024] 0.25*** [0.033] 1.55*** [0.122] 0.24*** [0.015]
Interaction (tax X competition) − 0.03 [0.017] − 0.02 [0.031] − 0.06 [0.105] 0.01 [0.013]
No. of observations 68,193 35,964 11,384 10,592
R-squared 0.305 0.011 0.114 0.148
  1. Pijt = FE + α1*IEPS2014 +δ1 * Compj + δ2 * (IEPS2014 * Compj) + uijt
  2. Shifting parameter refers to the shifting magnitude in Mexican pesos. Standard errors are clustered by establishment and presented in brackets. ***p < 0.01, **p < 0.05, *p < 0.1. All regressions include interaction (Establishment-Specific X Product Type X Brand X Product Content) and monthly fixed effects (FE). In addition, all estimations include a dummy variable signaling 2012 prices