as the world s most experienced research company we know that retail tracking data will only provide part of story about your marketing performance knowing how much you sold is one thing understanding person who bought and why it something else altogether after all spend enough money each year promoting products in store trying to attract consumers attention at acnielsen tell what no other supplier can demographic profiles lifestyle stages their trial repeat patterns brand switching behaviours attitudes preferences where they shop often buy through integration display information with our measurement promotions worked didn t when many stores important these variables were driving incremental sales global offers breadth services across so markets unmatched ability integrate sources customised consumer attitudinal advertising index scantrack panel homescan i scan