Negative net migration hasn’t definitively happened in the U.S. for almost a century, not since the Great Depression. The U.S. native-born population is also in free fall, well below the replacement rate needed to maintain population numbers in the long run. With fewer immigrant arrivals already dealing a blow to the workforce, the shrinkage of the American taxpayer base is set to further widen the country’s deficit and hurt its prospects for economic growth.
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本篇聚焦“研发投入”与“研发人员”两大核心指标,从总量增长、结构分化、行业聚集与区域分布等多个维度,来观察近五年中国企业科创资源配置的真实图景与变迁。,推荐阅读WPS下载最新地址获取更多信息
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