Upper middle-income countries
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https://figshare.com/articles/dataset/Upper_middle-income_countries/16918384/1
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资源简介：
Data of upper middle-income countries between 1980 and 2018 to study whether indigenous or foreign innovation efforts are more important for the transition of upper middle-income economies to the high-income rank. Data are designed for discrete-time hazard models.
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figshare创建时间：
2021-11-02
