Horváth, C.

price effect brand category promotion model marketing price promotions change variable product consumer parameter characteristic elasticity journal result series elasticitie frequency level research price elasticity gambling activity display distribution brand i price elasticities market price changes analysis category c difference equation literature consumption feature price effects discount price promotion increase income response index matrix error log sales study vector time t science example influence growth measure determinant share product category relationship future period product categories sampling attacker purchase cross-brand price promotion frequency value business section lottery victim estimate price index recession price change cross-price business cycle depth