He, Qiugu; Yang, Guang; Xu, Jianhuan - 2023
. To build a productivity link between imports and exports, we also estimate the contribution of import scope to … of 15%, the average fixed cost of importing an HS6 product expands import scope, but the main driver for the expansion of … import scope is the change in productivity. Furthermore, the asymmetry change in the two fixed costs explains most of the …