A model of industrial hollowing-out of neighboring countries by the economic growth of China

Our model is a multi-sectoral version of Romer's variety expansion model that reveals the presense of industrial hollowing-out. The basic idea of the model is similar to that of Lucas [Lucas, Robert E., Jr. 1993, “Making a Miracle.” Econometrica 61, p. 273-302.]. An increase in (external) social experience capital through learning by doing raises labor productivity. It also increases the social capacity to adopt more technology-intensive goods. The model provides the following implications: First, even though the economic growth of China raises the exports of low-level technology goods from neighboring countries to China in the short run, this can lower their future growth potential by lowering the accumulation of social experience capital. Second, without increasing social capacity to adopt more technology-intensive goods, those countries can experience industrial hollowing-out, lower equilibrium wage rates, and a higher unemployment rate. Third, as with conclusions garnered by standard geography models, both a huge market size and very low-level wages in China imply a continuation of discontinuous and lumpy loss of jobs and sectors. In this context, various policies to raise social capacity, besides retraining programs and unemployment safety nets, should be provided by the government to avoid industrial hollowing-out and to allocate labor efficiently.