消费者在购买高新技术产品时，会通过寻求广告信息，听取专业人士的建议，注意厂商的促销活动，选择著名品牌，自身经验等方式来降低知觉风险；
When consumers want to buy high-tech products , they often find information from advertisement , the professionals , the producers , the famous brand and self experiences to reduce their perceived risk .
厂商促销