Two things make services different from manufacturing. First, while some segments of services are tradable and are becoming more important in global commerce, these typically are highly skill-intensive sectors that employ comparatively few ordinary workers.
两个因素决定了服务业和制造业的不同。首先，尽管某些服务业细分领域是可贸易的，并且在全球商业中日益重要，但这些领域往往是高度技能密集部门，只需要极少普通工人。