与传统小额信贷相比,以网络平台小额信贷为代表的数字普惠金融不但可以分散风险、降低信息成本,而且可以缓解资金供给不足的困境,因而在小额信贷领域备受期待。本文利用公益性网络借贷平台——宜农贷开展的追踪调查数据,实证考察了宜农贷平台借贷对农户收入的影响。基于倾向得分匹配基础上的双重差分法(PSMDID)分析表明:宜农贷平台借贷促进了农户人均纯收入的提高,且主要是通过提高农户的农业类收入实现。进一步研究发现,宜农贷平台借贷对农户人均纯收入的提高作用与农户人均纯收入水平之间呈现U型关系。因此,本文建议,在处于脱贫攻
Accurately estimated interval attenuation (1/Q) values have several applications, such as in quantitative interpretation and seismic resolution enhancement. Alt
To improve the accuracy of inversion results, geological facies distributions are considered as additional constraints in the inversion process. However, the ge
Small structures in coal mine working face is one of the main hidden dangers of safe and efficient production in coal mine. Currently, seismic exploration is of
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The constant Q property in viscoelastic media assumes that the quality factor Q does not change with frequency (i.e., the Q value is independent of the frequenc
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For logging while drilling (LWD) systems, it is necessary to adjust the working state of the downhole tools in real-time according to different operating condit
旅游交际英语是旅游管理自学考试本科课程体系里面的一门专业核心理论课程,被公认为旅游管理n自考专业最难通过的课程。历年来,很多老师潜心研究该课的教学方法。本文从教学模