The definition might be not immediately clear. A good one is given in a pop-up: > Economic complexity expresses the diversity and sophistication of the product

The definition might be not immediately clear. A good one is given in a pop-up: > Economic complexity expresses the diversity and sophistication of the productive capabilities embedded in the exports of each country [... ⇆] High complexity countries are home to a range of sophisticated, specialized capabilities and are therefore able to produce a highly diversified set of complex products. [...] Information about how many capabilities the country has is contained not only in the absolute number of products that it makes, but also in the ubiquity of those products (the number of countries that export the product) and in the sophistication and diversity of products those other countries make Further details in the glossary, at https://atlas.cid.harvard.edu/glossary https://atlas.cid.harvard.edu/glossary