结果:找到“Xi:”相关内容1000个,排序为按回复时间降序,搜索更多相关帖子请点击“高级”
全要素生产率中的退出变量生成代码(exit)
7 个回复 - 2400 次查看
当前研究全要素生产率的主流方式为LP法、OP法。但使用OP法的过程中,众多学者不知如何生成退出变量,特别是在使用中国工业企业数据进行全要素生产率的研究过程中,这一变量的生成难度较大。此代码能够解决这一难题, ...
2020-5-27 16:41 - 102666 - 现金交易版
GSM 147-Xingzhi Zhan - Matrix Theory
8 个回复 - 653 次查看
Matrix Theory
作者: Xingzhi Zhan
出版社: American Mathematical Society
出版年: 2013-6-28
页数: 264
定价: USD 65.00
装帧: Hardcover
丛书: Graduate Studies in Mathematics
ISBN: 9780821894910
...
2024-6-10 17:34 - wxwpxh - 经济金融数学专区
Arxiv申请背书(发表马克思主义经济理论论文),愿以报酬
1 个回复 - 635 次查看
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...
2021-8-29 14:34 - 懒洋洋2 - 求助成功区
xi:reg命令下的SUE检验为什么会出现unknown command的报错呀
5 个回复 - 1440 次查看
请问xi:reg命令下的SUE检验为什么会出现unknown command的报错呀
代码:
xi: reg TQ Wgap_abs $CV i.Industry i.year if Lifec==2
estimates store b
xi: reg TQ Wgap_abs $CV i.Industry i.year if Lifec==3 ...
2021-6-2 17:33 - 子衿0706 - Stata专版
Diophantine Approximation
1 个回复 - 171 次查看
Diophantine Approximation
作者: Tichy, Robert F. 编
页数: 422
定价: $ 179.67
丛书: Developments in Mathematics
ISBN: 9783211742792
2024-5-24 06:13 - wxwpxh - 经济金融数学专区
The Maximum Principle极大值原理
0 个回复 - 215 次查看
The Maximum Principle
作者: Pucci, Patricia/ Serrin, James
出版社: Springer Verlag
页数: 234
定价: 891.75元
装帧: HRD
ISBN: 9783764381448
2024-5-16 05:05 - wxwpxh - 经济金融数学专区
Goal proximity effect on collective action
1 个回复 - 248 次查看
【作者(必填)】Kihyon Kim a, Jihoon Jhang b, Sangyoung Song c, Hyun Shin c, Sujin Song
【文题(必填)】Goal proximity effect on collective action: The mediating role of perceived behavioral impact an ...
2024-4-26 08:59 - jgxlmf - 求助成功区
Toxic Parents - Susan Forward
1 个回复 - 357 次查看
Toxic Parents - Susan Forward
Who are toxic parents?
The Inadequate Parents: Constantly focusing on their own problems, they turn their children into “mini-adults” who take care of them.
The Co ...
2023-11-2 01:32 - zheliang01 - Forum
Geometric Problems On Maxima And Minima
1 个回复 - 272 次查看
Geometric Problems On Maxima And Minima
作者: Andreescu, Titu/ Mushkarov, Oleg/ Stoyanov, Luchezar N.
出版社: Springer Verlag
出版年: 2005-12
页数: 280
定价: $ 90.34
装帧: Pap
ISBN: 978081763 ...
2024-1-22 03:21 - wxwpxh - 经济金融数学专区
Axiomatic Set Theory, Part 1
2 个回复 - 305 次查看
Axiomatic Set Theory, Part 1 (Symposia in Pure Mathematics Vol XIII)
作者: Symposium in Pure Mthmts
出版社: Amer Mathematical Society
出版年: 1967-06
页数: 474
定价: USD 61.00
装帧: Paperback ...
2023-12-3 12:28 - wxwpxh - 经济金融数学专区
Axiomatic Set Theory,Scott.ed Part 2
2 个回复 - 297 次查看
Axiomatic Set Theory,Scott.ed Part 2 [Symposia in Pure Mathematics Vol XIII]
作者: Symposium in Pure Mthmts
出版社: Amer Mathematical Society
出版年: 1967-06
页数: 222
装帧: Paperback
ISBN: 97 ...
2023-12-3 12:31 - wxwpxh - 经济金融数学专区