Time series regression results for first-differenced weekly unit sales
| Series | PoS display removal coefficient | p Value | Lower 95% CI | Upper 95% CI |
| Total | −5848 | 0.616 | −28798 | 17102 |
| Multiples | −1045 | 0.623 | −5225 | 3134 |
| Symbols | −3909 | 0.547 | −16686 | 8868 |
| Forecourts | −767 | 0.838 | −8140 | 6604 |
The estimate ‘PoS display removal coefficient’ corresponds to POSremove in equation (1) and gives the estimate of the impact (change in weekly unit sales) of removing point of sale displays after controlling for all other variables given in the equation. Control variables from the regression equation (1) are not included, but can be obtained from the authors.
PoS, point of sale.