PM - Supermarket offers: Bigger doesn't mean cheaper - ÃÛÑ¿´«Ã½ Sounds

PM - Supermarket offers: Bigger doesn't mean cheaper - ÃÛÑ¿´«Ã½ Sounds

PM

Supermarket offers: Bigger doesn't mean cheaper

Professor Bernhard von Stengel explains how some supermarkets calculate their deals.

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