Marketplace Pulse：2026年全球电商平台指数报告（英文版）

Marketplace selling in 2026 is defined by margin compression, platform concentration, and defensive strategic positioning. Among 181 sellers representing over $2 billion in combined annual revenue, 46% report declining margins while just 31% experienced improvement. Platform fees, advertising spend, and tariffs lead as cost pressures, yet sellers continue concentrating revenue into the platforms they cite as their primary margin threat. Trajectory matters more than absolute position. Two sell