Q. Where was the concept of Special Economic Zone (SEZ) first introduced?
Answer: China
Notes: Worldwide, the first known example of a SEZ is an industrial park established in Puerto Rico in 1947 to attract investment from the US mainland. In the 1960s, Ireland and Taiwan followed, but in the 1980s China gained the SEZ the global currency, with the largest SEZ being the metropolis of Shenzhen.

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