Does the Depth of Digital Trade Rules Boost Bilateral Service Value-Added Trade?

The study found that high-level digital trade rules can significantly boost service value-added in trade between countries, with a more significant boosting effect on domestic value-added trade. High-level digital trade rules signed between developed and less developed countries have a more substantial promotion effect on bilateral service value-added trade. In addition, deep digital trade rules promote bilateral service value-added in trade mainly by lowering barriers to trade in service. The more stable the political relationship between the two countries, the more positive the effect of high-level digital trade rules on their service value-added trade.