Wage,foreign-owned firms,and productivity spillovers via labour turnover: a non-linear analysis based on Chinese firm-level data

Using firm-level panel data from Chinese manufacturing firms over the period 2004–2007, this article investigates the impact of the wage gap between local and foreign-owned firms on foreign direct investment (FDI) spillovers in terms of total factor productivity (TFP). We find a non-linear threshold effect that: a low-level wage gap threshold exists, below which FDI spillovers are significantly negative. This is because FDI spillovers via labour turnover are blocked due to the low wages of local firms, which jeopardizes the flow of skilled workers from foreign firms to local firms. In contrast, when the wage gap reaches a high-level threshold, local firms can get benefits from FDI spillovers. The reason is that high wages of local firms attract skilled employees to leave foreign firms, which yields a large magnitude of worker mobility from foreign firms to local firms. Our article provides evidence that labour turnover as the channel of FDI spillovers only works when the wage gap is beyond some threshold. Also, these thresholds vary across regions and firm ownerships.