Based on the "Statistical Classification of Digital Economy and Its Core Industries (2021)" published by the National Bureau of Statistics of China, this paper proposes a more accurate method to identify digital intermediate products by matching China Industrial Classification code with...

What drives export quality? Using Portuguese firm-level data on exports by product and destination market, we find that f.o.b. unit values increase systematically with distance, and tend to be higher in shipments to richer nations. These relationships reflect not only the sorting of firms across...