This rise in the relative price of services has long been apparent for other reasons. One reason for this is that productivity growth has tended to be greater for goods than for services. That is, we’ve got better at producing more goods for a given level of inputs, more so than has been the case for services.
Another reason is that the global integration of much of Asia over recent decades has brought large numbers of workers into the production of traded goods, increasing their supply and therefore pushing down the relative prices of goods. It is important for stronger wage growth, and an increase in the relative prices of services to occur.