Traditional weighted-average measures of trade distortions are widely used in analyzing global and regional reforms, despite well-known deficiencies. This paper develops and applies optimal aggregators for the real-world case of multiple countries and commodities with much more detailed...

Global value chains (GVCs) have shaped the dynamics of globalisation in recent years. This paper reviews key concepts and tools to measure countries’ involvement in GVCs, explores recent trends and investigates the underlying drivers of GVC participation empirically. The analysis in the paper...

This paper constructs and uses the global input-output (GIO) table with 35 industries, 29 endogenous countries and 59 exogenous countries, and develops new indices to measure the degree of shock transmission in terms of intermediate goods and value-added embodied in production induced by...