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Press freedom index in Peru from 2015 to 2025
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江苏省生育政策一元化对人口出生的影响
为估算独生子女夫妇生育2孩的影响,文章以江苏省为例,采用年龄孩次递进模型和生育率拆分的方法,测算了全省非农人口也和农村一样("生育政策一元化"),实行"夫妻一方为独生子女的家庭,可以生育第2个孩子"的政策(简称"单独",非农业人口现行的"夫妻双方均为独生子女可以生育第2个孩子"的政策简称"双独")对人口出生规模的影响。测算结果表明:全省城乡都实行"单独"生育政策后,平均每年人口出生增加最大不
复旦大学社会科学数据平台2017-06-27 更新90
Data for: Use of geospatial analysis in Parintins/AM (Brazil) in the evaluation of the National Urban Development Policy (PNDU)
Data for the article: Use of geospatial analysis in Parintins/AM (Brazil) in the evaluation of the National Urban Development Policy (PNDU)
DataCite Commons2025-07-10 更新70
Index of urban innovation.
Urbanization drives the concentration of innovation elements and knowledge diffusion, which is conducive to enhancing regional innovation capacity. To meet the developmental needs of the new era, Chin
Figshare2023-04-21 更新40
阿富汗 CPIA：宏观经济管理评级：1=低 至 6=高
CPIA：宏观经济管理评级：1=低 至 6=高在03-01-2024达1.000NA，相较于03-01-2023的1.500NA有所下降。CPIA：宏观经济管理评级：1=低 至 6=高数据按年更新，03-01-2007至03-01-2024期间平均值为3.500NA，共17份观测结果。该数据的历史最高值出现于03-01-2007，达4.000NA，而历史最低值则出现于03-01-2024，为1.0
CEIC Data70
P olicy-driven collaboration and core technology advancement: insights from C hina’s chain leader policy
Based on the availability of public data, 2023 is set as the most recent year of observation. Considering that the Chain Leader Policy was first introduced in 2017, six years of data prior to the poli
Figshare2025-10-14 更新50
