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Revealed technology advantage in ICT
Index based on IP5 patent families
The revealed technological advantage (RTA) index measures the share of an economy’s patents in a specific technology relative to the share of total patents owned. The index is equal to zero when the economy has no patents in a given field, equals 1 when the economy’s share in the technology field is equivalent to its share in all fields (no specialisation), and rises above 1 when specialisation is observed.
The index is calculated on the basis of patents filed at the European Patent Office (EPO) or the US Patent and Trademark Office (USPTO), which belong to patent families within the Five IP offices (IP5), by earliest filing date and inventor’s location.
Patents in ICT rely on the International Patent Classification (IPC) codes detailed in Inaba and Squicciarini (2017), and reflect recent developments in ICT, notably in networks, mobile communication, security, data analysis and human interfaces.
Source: OECD, Science and technology statistics.