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stata做双向固定效应模型中的地区固定向出现 omitted because of collinearity
7 个回复 - 1520 次查看每个省份都是：province omitted because of collinearity 其中在命令中去掉fe，r又可以得到结果，但是就变成随机效应模型了，与我的设定不符了求问大佬的解决办法，非常感谢2023-2-28 19:57 - 17860631610 - Stata专版

HS-SITC-ISIC-BEC编码转化的几个网址
4 个回复 - 2685 次查看 https://wits.worldbank.org/product_concordance.html https://unstats.un.org/unsd/classifications/Econ https://ec.europa.eu/eurostat/ramon/relations/index.cfm?TargetUrl=LST_REL_DLD&StrNomRelCode=I ...2021-10-29 00:06 - claricee - 世界经济与国际贸易

菜鸟求教：面板检验出现 omitted because of collinearity怎么办
18 个回复 - 79024 次查看数据结果如下：【为什么会出现自变量共线？是用了交叉项的缘故？如何去除？多谢多谢，期待回应】 Fixed-effects (within) regression Number of obs = 4770 Group variable: code ...2014-12-23 16:12 - 未知燕 - Stata专版

HS、BEC、ISIC、SITC、GTAP、CPC等所有版本数据口径的转换关系
30 个回复 - 17531 次查看帮大家打包了，包括 HS1998-2007、SITC1-4、ISIC1-3、GTAP、CPC、MTN、CCCN 等等的互相转换关系。来源是 World Bank，请下载支持一下！ Content:HS combined to HS 2012.xlsxJobID-1_Concordance_HS1992_to_BEC ...2021-1-15 16:40 - Cloud_Snake - 世界经济与国际贸易

回归结果出现variable dropped because of collinearity的情形
2 个回复 - 3787 次查看请各位大神和朋友可以给与指教。note: regime6 dropped because of collinearity System dynamic panel-data estimation Number of obs = 1,424 Group variable: ifscode ...2017-8-29 10:49 - uuugggsun - Stata专版

stata中条件Logit模型报错omitted because of no within-group variance
7 个回复 - 905 次查看本人是一名在校学生，请教各位大神关于条件logit模型的一个问题：我的被解释变量是CMDS数据库里面五年的个体数据（清洗后大概29万个人），解释变量是城市层面的一系列变量(234)个城市，构造条件Logit模型后发现所有 ...2023-3-30 14:31 - 风之于秋水 - Stata专版

联合国数据库HS/BEC/SITC转换
13 个回复 - 9865 次查看 https://unstats.un.org/unsd/trade/classifications/correspondence-tables.asp ——以上是转换码链接，自取····· HS码好像更多的是按照加工程度进行分类 BEC码按照贸易实际用途进行分类 SITC码按照原料/制 ...2018-11-17 11:11 - 路边的野猫 - 世界经济与国际贸易

omitted because of collinearity
9 个回复 - 47237 次查看如果我run 一个回归，告诉我有很多omitted because of collinearity，那这个回归是不是不成功啊，2015-11-29 01:39 - xgq0918 - Stata专版

BEC代码 ,HS代码，SITC代码互相转化
1 个回复 - 1220 次查看最近看到不少人在寻找各种海关商品分类的文件。特别是BEC 将商品分为资本品，消费品和中间品。很多人不知道这是你么划分，以及划分后如何跟HS编码匹配。我看网上也没有现成的，花了些时间自己整理了一份完全版的对照 ...2023-1-4 17:20 - ujbbv - 现金交易版

High Probability Trading Take the Steps to Become a Successful Trader
3 个回复 - 1476 次查看 High Probability Trading Take the Steps to Become a Successful Trader A common denominator among most new traders is that, within six months of launching their new pursuit, they are out of money and ...2022-9-3 12:00 - sunrising_1975 - Forum

各版本HS,SITC,BEC编码转换
21 个回复 - 11494 次查看 2016-11-6 10:37 - zhangjin525 - 经济统计专版

BEC，HS，SITC，ISIC行业分类匹配数据
14 个回复 - 7378 次查看搜罗了很久的行业分类数据，分类标准如标题，可以匹配OECD数据库，世界投入产出表，UNCOMTRADE数据库。2019-12-17 21:43 - WellerFu - 世界经济与国际贸易

【独家发布】中间产品BEC与sitc3对应码，精简版。
29 个回复 - 6814 次查看中间产品sitc码2013-4-15 15:47 - 子予不语 - 休闲灌水

HS各版本，SITC各版本 BEC4对应表（dta格式）
1 个回复 - 890 次查看 2023-6-16 20:53 - 54000012 - 国际商务

解释变量被omitted because of collinearity，怎么处理？
9 个回复 - 1845 次查看做固定效应回归，解释变量被消除了，做hausman检验的时候，也不能做出来。2023-4-14 18:22 - 学术xiao白 - Stata专版

AOM: My Place: How Workers Become Identified withTheir Workplaces
3 个回复 - 339 次查看【作者(必填)】 Blake E. Ashforth, Brianna Barker Caza and Alyson Meister 【文题(必填)】 My Place: How Workers Become Identified with Their Workplaces and Why It Matters 【年份(必填)】 Published O ...2023-4-25 00:57 - yinhezhiwang - 求助成功区

HS-SITC-BEC 对照表
1 个回复 - 1363 次查看编码对照，具体可以看一下截图。2020-4-20 20:39 - miew - 爱问频道

出现 omitted because of no within-group variance的原因
3 个回复 - 5359 次查看做clogit条件逻辑模型的时候，有个0,1虚拟变量imp，但跑的时候出现 imp omitted because of no within-group variance 这是为什么？2014-3-12 14:42 - vanf1004 - Stata专版

有SITC4和BEC4之间的对应表吗？另外SITC4是否有以技术类型分类？
0 个回复 - 692 次查看如题2023-3-1 21:17 - 2724_1572868809 - 世界经济与国际贸易

固定效应模型估计时某变量 omitted because of collinearity 但实际不存在共线性！
13 个回复 - 15197 次查看大家好，请问一下~ 在用stata 固定效应模型估计时，某变量出现 omitted because of collinearity 但是检验该方程，实际上并不存在共线性。而且方程如果不加fe选项，就不会存在这个问题。加了fe选项，就会出 ...2019-2-12 14:45 - 欧村残翁买翁 - 爱问频道

First passage time density of an Ornstein–Uhlenbeck process with broken drift
1 个回复 - 2853 次查看【作者(必填)】Stefan Ankirchner et al. 【文题(必填)】First passage time density of an Ornstein–Uhlenbeck process with broken drift 【年份(必填)】2022 【全文链接或数据库名称(选填)】First pass ...2023-2-10 07:51 - ssylzz - 求助成功区

HS编码 BEC SITC 匹配
1 个回复 - 785 次查看内含各个版本的HS编码和BEC编码、SITC编码的匹配（若购买后无法下载，可在帖上回复，每周不定期看帖）2023-2-3 14:54 - xxxzzz_cool - 世界经济与国际贸易

[不同版本HS代码转化说明]联合国统计司HS代码、BEC码、SITC码转化表
2 个回复 - 1204 次查看 HS22 HS17 HS12 HS07 HS02 HS96 原始英文说明链接：https://unstats.un.org/unsd/classifications/Econ 里面有各种不同HS码、BEC码、SITC码之间的转化表可自行下载附件是中文说明用WPS会员转化的中文版方便理 ...2022-11-18 17:30 - 秋天的亦然 - 世界经济与国际贸易

【认知效率】 Cognitive Productivity: Using Knowledge to Become Profoundly Effect
21 个回复 - 1448 次查看 Cognitive Productivity: Using Knowledge to Become Profoundly Effective by Luc P. Beaudoin (Author), Lam Wong (Illustrator) The purpose of this book is to help you get lots more out of the ...2016-11-30 13:11 - cmwei333 - 经管书评

平行趋势检验回归出现eventz2 omitted because of collinearity
0 个回复 - 1471 次查看按照张老师的多期平行趋势检验的代码修改了一下做的结果显示， warning: year might be perfectly explained by fixed effects (tol = 1.0e-09) (MWFE estimator converged in 2 iterations) warning: missing F ...2022-9-13 20:40 - 18811617099 - 统计软件培训班VIP答疑区

新手求教：year omitted because of collinearity
8 个回复 - 11397 次查看用stata回归过程中总是出现 2018year omitted because of collinearity 尝试了删除2018年度样本进行回归报告2017year omitted because of collinearity 也就是说会把样本中最后一个年度的数据省略●部分数据如下： ...2019-11-12 10:39 - VV_zk4 - Stata专版

随机效应tobit回归时区域虚拟变量出现omitted because of collinearity
0 个回复 - 582 次查看我的a3是西部地区虚拟变量，a1东部a2中部这俩都能正常运作，为什么a3不行2022-4-27 16:55 - moarmyy - Stata专版

First hitting times for doubly skewed Ornstein–Uhlenbeck processes
5 个回复 - 1503 次查看【作者(必填)】【文题(必填)】First hitting times for doubly skewed Ornstein–Uhlenbeck processes 【年份(必填)】Statistics & Probability LettersVolume 96, January 2015, Pages 212–222 【全文链接或 ...2014-12-2 06:20 - ssylzz - 求助成功区

求文献FRACTIONAL ORNSTEIN–UHLENBECK PROCESSES MIXED WITH A GAMMA DISTRIBUTION
3 个回复 - 980 次查看【作者(必填)】KHALIFA ES-SEBAIY and CIPRIAN A. TUDOR 【文题(必填)】FRACTIONAL ORNSTEIN–UHLENBECK PROCESSES MIXED WITH A GAMMA DISTRIBUTION 【年份(必填)】2014 【全文链接或数据库名称(选填)】Fr ...2015-8-11 21:48 - weilinhy - 求助成功区

Option Pricing in Stochastic Volatility Models of the Ornstein-Uhlenbeck type
2 个回复 - 912 次查看【作者(必填)】Nicolato, E. and E. Venardos 【文题(必填)】Option Pricing in Stochastic Volatility Models of the Ornstein-Uhlenbeck type 【年份(必填)】2003 Mathematical Finance, 13:445-466. ...2015-5-27 21:38 - Bumboo - 求助成功区

After we die, what becomes of our digital heritage?
0 个回复 - 3080 次查看随着悲伤、哀悼和死亡成为我们数字生活的一部分，社会需要对我们留下的数据制定更明确的规则。原文节选： If digital mourning cannot replicate the experience of a traditional Tomb-Sweeping Day, it’s ...2022-4-10 13:12 - 杨明凡 - 外语学习

国际贸易分类标准大全（HS-SITC-BEC）
13 个回复 - 14422 次查看历年所有的HS分类、SITC分类、与BEC分类的匹配都在这儿了，不用到其他地方找了。2019-3-18 01:36 - chengwenyin1989 - 经济统计专版

stata 动态面板 gmm：rd(因变量) omitted from dgmmiv() because of collinearity
0 个回复 - 519 次查看 stata 动态面板回归：结果出现因变量 omitted from dgmmiv() because of collinearity，搞不动为啥是因变量 omitted，该怎么解决呢！急！！下面是程序和结果： . xtabond rd tax govtsub,lags(2) maxldep( ...2022-2-8 20:51 - dddlsj - Stata专版

HS，SITC和BEC联合国贸易统计数据官方转换表
3 个回复 - 2593 次查看做论文数据处理的时候　碰到了需要转换的问题　找资料挺浪费时间的　这是HS，SITC和BEC联合国贸易统计数据所有年份的官方转换表　大家可以放心参考2018-10-12 12:53 - 没人陪我去北京 - 世界经济与国际贸易

AICPA Becker Audit 2019
5 个回复 - 14380 次查看 AICPA Becker Audit 2019 的pdf，有注释但是不影响使用。2020-4-25 13:05 - 阿里巴巴鸡肉 - CPA注册会计师及其他财会考证

【贸易转换表】HS1996与BEC/ISIC/SITC转换表
2 个回复 - 3139 次查看最近在做贸易相关的数据处理，在论坛上面找了很久也没有找到合适的贸易转换表，最终在国际网站找到了HS1996与BEC、ISIC.REV2、ISIC.REV3、SITC2、SITC3的贸易转换表，原始文件下载，未经加工。现分享给大家，希望对大 ...2021-6-23 10:00 - 似水流年12197 - 世界经济与国际贸易

双向固定效应模型出现year omitting because collinearity怎么办
2 个回复 - 819 次查看简单的面板数2021-12-2 11:08 - 肉肉卓 - Forum

新手求教|Age omitted because of collinearity
3 个回复 - 2809 次查看下面是我的程序 esttab a1 a2 using 基准回归结果.rtf,b(%12.4f) p(%12.4f) mtitle star(* 0.1 ** 0.05 *** 0.01) nogap brackets r2 replace . egen age=median(Age) . winsor2 Invest if D==0&Age F ...2021-11-9 16:41 - guangbaojin1 - Stata专版

求Inference problem in generalized fractional Ornstein–Uhlenbeck processes with
0 个回复 - 416 次查看【作者(必填)】Nkurunziza, S. 【文题(必填)】Inference problem in generalized fractional Ornstein–Uhlenbeck processes with change-point. 【年份(必填)】2021 【全文链接或数据库名称(选填)】 Bern ...2021-2-17 01:34 - 地下爆菊 - 文献求助专区

It Was All a Lie: How the Republican Party Became Donald Trump
3 个回复 - 618 次查看 It Was All a Lie: How the Republican Party Became Donald Trump by Stuart Stevens (Author)2021-1-14 11:33 - Nicolle - winbugs及其他软件专版

Becoming…in Lagos: a time-narration approach to city-identification in an Afric
1 个回复 - 901 次查看【作者(必填)】Allen Hai Xiao 【文题(必填)】Becoming…in Lagos: a time-narration approach to city-identification in an African metropolis 【年份(必填)】2020 【全文链接或数据库名称(选填)】https ...2020-12-6 18:20 - 三世相思2013 - 求助成功区

为什么按BEC分类的所有中间产品所在大类有的在中国行业SITC3中找不到呢
6 个回复 - 8961 次查看最近在找中国分行业的中间产品SITC代码数据，在弄完所有中间产品SITC代码后，再根据中国分行业的sitc码对照，找出中国分行业的中间产品sitc代码但是有的中间产品代码不在中国行业分类里面。比如说sitc下001项下的活动 ...2013-4-20 11:38 - 子予不语 - 国民经济管理

【学习笔记】Just because it\'s in print doesn\'t mean it\'s the go ...
1 个回复 - 324 次查看 Just because it\'s in print doesn\'t mean it\'s the gospel.印刷成文的不一定就是真理。2020-8-29 08:51 - ccwwccww - Forum

Becoming a Behavioral Science Researcher Second Edition
3 个回复 - 323 次查看【作者(必填)】 Rex B. Kline【文题(必填)】 Becoming a Behavioral Science ResearcherSecond EditionA Guide to Producing Research That Matters 【年份(必填)】 2019 【全文链接或数据库名称(选填)】https: ...2020-8-19 15:26 - 323191599 - 求助成功区

【学习笔记】It\'ssoeasy tobecareless, but it takes curse and courage t ...
0 个回复 - 444 次查看 It\'ssoeasy tobecareless, but it takes curse and courage to take cares. 想要不在乎太容易了，但要有无穷的勇气才能学会在乎。2020-7-24 06:40 - ccwwccww - Forum

【2018新书】How to Become a Digital Marketing Hero
22 个回复 - 3149 次查看 How to Become a Digital Marketing Hero by Rufus Lidman (Author) About the author Rufus Lidman is one of Europe's leading Digital Strategists and sought after consultant. On his client list you ca ...2018-7-28 15:50 - slowry - 金融学（理论版）

【学习笔记】 Don\'t cry because it is over, smile because it happened. ...
1 个回复 - 385 次查看 Don\'t cry because it is over, smile because it happened. 不要因为结束而哭泣，微笑吧，为你的曾经拥有。2020-6-29 10:57 - 李沐寒521521 - Forum

When the dynamic capacity of a business ecosystem become a trigger to collaborat
0 个回复 - 454 次查看【作者(必填)】Nabil El Hilali[/backcolor][/backcolor], [/backcolor]Fatiha Naoui-Outini[/backcolor][/backcolor], [/backcolor]Gwenaëlle Oruezabala[/backcolor][/backcolor] 【文题(必填)】When the ...2020-6-28 10:25 - xiaodoudou2079 - 文献求助专区

【学习笔记】2020/05/12-Gambling on US equities is becoming more difficul ...
0 个回复 - 263 次查看 2020/05/12-Gambling on US equities is becoming more difficult2020-5-12 13:25 - fangchouzhu - Forum

【学习笔记】Because it\'s not important to be right. It\'s only impo ...
0 个回复 - 569 次查看 Because it\'s not important to be right. It\'s only important to be true.2020-5-11 06:35 - ccwwccww - Forum

AOM: Composing The Reflected Best-Self Portrait: Building Pathways For Becoming
2 个回复 - 564 次查看【作者(必填)】 Laura Morgan Roberts, Jane E. Dutton, Gretchen M. Spreitzer, Emily D. Heaphy and Robert E. Quinn 【文题(必填)】 Composing The Reflected Best-Self Portrait: Building Pathways For Beco ...2020-3-28 03:07 - yinhezhiwang - 求助成功区

hs、sitc、bec各版本详细对照表xls格式
7 个回复 - 4229 次查看 hs、sitc、bec各版本详细对照表2017-7-18 20:31 - zsq9110 - 新手入门区

【学习笔记】NHS chiefs say that because hospitals are so stretched they ...
1 个回复 - 348 次查看 NHS chiefs say that because hospitals are so stretched they are going to have to start cancelling operations sooner rather than later to free up beds. As the number of patients with Covid- 19 increase ...2020-3-7 22:56 - yayabanyan - Forum

【学习笔记】Laura Kenny\'s bid to become the first british woman to wi ...
0 个回复 - 360 次查看 Laura Kenny\'s bid to become the first british woman to win three golds at a single olympics is in danger 劳拉·肯尼（Laura Kenny）想要成为第一位在单届奥运会上赢得三金的英国女子的机会正在变得渺茫。 te ...2020-2-21 23:35 - 5218_1580978959 - Forum

【学习笔记】 “Creating fear within the group is one way to become leade ...
3 个回复 - 475 次查看 “Creating fear within the group is one way to become leader.” 在族群中制造恐惧是成为首领的途径之一。 -Dynasties王朝2019-8-24 06:00 - 月落乌啼6202 - Forum

【拓扑向量空间】 Topological Vector Spaces (2nd Edition) by Narici, Beckenstein
23 个回复 - 3306 次查看 Topological Vector Spaces, Second Edition Lawrence Narici, Edward Beckenstein With many new concrete examples and historical notes, Topological Vector Spaces, Second Edition provides one of ...2017-1-10 07:55 - cmwei333 - 经济金融数学专区

Dancing with the Stars: How a Sovereign Fund Shaped Its Network to Become
0 个回复 - 371 次查看【作者(必填)】Nowacki, Caroline[/backcolor] Monk, Ashby H B[/backcolor] [/backcolor] [/backcolor] 【文题(必填)】Dancing with the Stars: How a Sovereign Fund Shaped Its Network to Become an Institu ...2020-1-17 15:35 - Hfinance - 文献求助专区

上市公司年龄（已上市月份数wage）在回归中显示 wage omitted because of collinearit
0 个回复 - 1340 次查看 . xtreg wio_sum change_m_city_r wlev wmv wroe wage wbeta wfirst soe wrmrf wmturn wmvol term1-term16, fe vce(robust) note: wage omitted because of collinearity note: term13 omitted because of colli ...2020-1-16 16:35 - JaeXxin - SPSS论坛

【独家发布】Dancing with the Stars: How a Sovereign Fund Shaped Its Network to Become
0 个回复 - 346 次查看【作者(必填)】Nowacki, Caroline Monk, Ashby H B 【文题(必填)】Dancing with the Stars: How a Sovereign Fund Shaped Its Network to Become an Institutional Entrepreneur 【年份(必填)】2017 【全 ...2020-1-14 08:42 - Hfinance - 文献求助专区

【学习笔记】Like the sun because it’s warm, warm heart went to unknown ...
1 个回复 - 302 次查看 Like the sun because it’s warm, warm heart went to unknown pain.喜欢阳光是因为它很暖，暖到了心底，暖去了不知名的疼痛。2020-1-11 07:29 - artra2012 - Forum

【学习笔记】When you find peace within yourself, you become the kind of ...
1 个回复 - 451 次查看 When you find peace within yourself, you become the kind of person who can live at peace with others. 当你找到内心的平静，你便成为能和别人和平共处的人。2019-12-30 06:45 - ccwwccww - Forum

【学习笔记】Your mind is like this water. When it is agitated, it become ...
3 个回复 - 760 次查看 Your mind is like this water. When it is agitated, it becomes difficult to see, but if you allow it to settle, the answer becomes clear. 心如此水，乱则不明，但若心如止水，答案便尽现眼前。2019-12-26 06:53 - ccwwccww - Forum

【学习笔记】As we grow up, we realize it becomes less important to have ...
1 个回复 - 672 次查看 As we grow up, we realize it becomes less important to have a tons of friends, and more important to have real ones. 长大了之后，我们发现，拥有几个真心朋友比找一大堆朋友要更重要。2019-12-9 06:45 - ccwwccww - Forum

dynare错误提示“ The problem most often occurs, because a variable with”
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Learning R Programming - Become an efficient data scientist with R
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【学习笔记】As a jade without chiseling will not become a useful object, ...
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Do firms issue more equity when markets become more liquid
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bec，进口贸易，intermediate good，capital good，中间品，资本品
1 个回复 - 1613 次查看一个很学术的问题：我看了几乎所有top的期刊，发现大佬们在Bec分类上有一个很严重的问题： 90%的大佬没有定义intermediate good；剩下10%的大佬中，有一些定义intermediate good就是bec的intermediate good；有 ...2019-6-11 10:29 - 闲愁840 - 世界经济与国际贸易

进口贸易，bec，中间品，资本品，intermediate good，capital good，final good
0 个回复 - 1173 次查看一个很学术的问题：我看了几乎所有top的期刊，发现大佬们在Bec分类上有一个很严重的问题： 90%的大佬没有定义intermediate good；剩下10%的大佬中，有一些定义intermediate good就是bec的intermediate good；有 ...2019-6-11 10:26 - 闲愁840 - 世界经济与国际贸易

Expert Python Programming, 2nd Edition: Become an ace Python programmer by learn
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2015 becker auditing
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note: NAPR92 dropped because of estimability
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【独家发布】Become a Python Developer: Wrestle and Defeat It
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【独家发布】How China Became Capitalist
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omitted because of collinearity
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Becoming an expert in the musical domain: It makes more than just practice
1 个回复 - 370 次查看【作者(必填)】Joanne Ruthsatz; Douglas Detterman; William S. Griscom; Britney A. Cirullo 【文题(必填)】Becoming an expert in the musical domain: It makes more than just practice 【年份(必填)】20 ...2018-11-24 21:52 - 这是谁 - 求助成功区

Re: blockchain future winners become cryptographers, not bitcoins
0 个回复 - 110 次查看 Blockchain future winners become cryptographers, not bitcoins.U.S. financial markets closed and bitcoin retreated toward a more than one-year lowThe 2018-11-22 instructed*- here are five important thi ...2018-11-23 01:24 - fmsu_я - 新手入门区

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