You save money when you buy in bulk: does volume‐based pricing cause people to buy more beer?
利用超市扫描数据估算啤酒的品牌和包装价格弹性，发现基于体积的折扣促使消费者购买大包装啤酒，可能增加总消费量，对政策制定者有参考价值。
This paper uses supermarket scanner data to estimate brand- and packaging-specific own- and cross-price elasticities for beer. We find that brand- and packaging-specific beer sales are highly price elastic. Cross-price elasticity estimates suggest that individuals are more likely to buy a higher-volume package of the same brand of beer than they are to switch brands. Policy simulations suggest that regulation of volume-based price discounts is potentially more effective than a tax increase at reducing beer consumption. Our results suggest that volume-based price discounting induces people to buy larger-volume packages of beer and may lead to an increased overall beer consumption.