eMarketer：2025年美国商业媒体预测报告：新兴垂直领域站稳脚跟 零售商让出市场份额（英文版）

US commerce media ad spending will exceed $100 billion by 2028. While YoY growth will slow throughout our forecast period, commerce media is poised to make up nearly 1 in every 4 digital ad dollars spent by 2028. ▪ Retail’s share of commerce media is set to fall below 90%. Retail media will continue to dominate commerce media ad spending, but its share will decline each year as nonretail verticals find their footing. ▪ Nonretail commerce media will grow at a faster rate. Nonretail commerce me