In particular, they show that services have exhibited “unconditional convergence” in productivity recently. That is, countries furthest away from the global frontier of labor productivity have seen the fastest productivity growth in services.
特别是，他们指出，最近服务业表现出生产率的“无条件趋同”。也就是说，劳动生产率最落后的国家，服务生产率增长最快。