Each retail chain wants to attract as many customers as possible. In Poland, the easiest way to do it is by promoting popular products at great prices. In the autumn, sugar is becoming such a "product of a fight" between the chains, as the autumn processing of fruit preserves and tinctures are still popular.
In this case, the price is crucial and we can see a few ways to reduce it.
Delikatesy Centrum put the lowest price, but to cover such significant reduction, at the same time it introduced three mechanisms:
Carrefour and Intermarche came to the subject more classically, limiting only the purchase limits to the receipt, but thus had to issue a higher price.