“宝儿康”产品开发和市场营销中的人口学分析石青胜（北京万方科技发展公司总经理）在社会主义市场经济条件下，企业要在激烈的市场竞争中立住足，关键有两点；一是开发的产品是否适销对路，二是营销策略是否科学有效。在市场营销导向时代，市场需求，即消费者的需要是制... Demographic Analysis of Product Development and Marketing in “Bao’erkang” Shi Qingsheng (General Manager, Beijing Wanfang Science and Technology Development Company) Under the condition of socialist market economy, enterprises should keep their footing in the fierce market competition. There are two key points: First, the development of the product is marketable, the second is whether the marketing strategy is scientific and effective. In the marketing-oriented era, market demand, that is, the needs of consumers is the system ...