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Binned scatterplots with marginal histograms: binscatterhist 带有边缘直方图的分形散点图
The Stata Journal: Promoting communications on statistics and Stata Pub Date : 2022-06-30 DOI: 10.1177/1536867x221106418
Matteo Pinna
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引用次数: 0
Software Updates 软件更新
The Stata Journal: Promoting communications on statistics and Stata Pub Date : 2022-01-06 DOI: 10.1177/1536867x211063150
{"title":"Software Updates","authors":"","doi":"10.1177/1536867x211063150","DOIUrl":"https://doi.org/10.1177/1536867x211063150","url":null,"abstract":"st0532_3: Event study estimations using Stata: The estudy command. F. Pacicco, L. Vena, and A. Venegoni. <i>Stata Journal</i> 21: 141–151; 19: 497; 18: 461–476.","PeriodicalId":501101,"journal":{"name":"The Stata Journal: Promoting communications on statistics and Stata","volume":"121 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138496614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
On identification and estimation of Heckman models Heckman模型的辨识与估计
The Stata Journal: Promoting communications on statistics and Stata Pub Date : 2022-01-06 DOI: 10.1177/1536867x211063149
Jonathan Cook, Joon-Suk Lee, Noah Newberger
{"title":"On identification and estimation of Heckman models","authors":"Jonathan Cook, Joon-Suk Lee, Noah Newberger","doi":"10.1177/1536867x211063149","DOIUrl":"https://doi.org/10.1177/1536867x211063149","url":null,"abstract":"<p>In this article, we present commands to enable fixing the value of the correlation between the unobservables in Heckman models. These commands can solve two practical issues. First, for situations in which a valid exclusion restriction is not available, these commands enable exploring how the results could be affected by sample-selection bias. Second, stepping through values of this correlation can verify whether the global maximum of the likelihood function has been found. We provide several commands to fit these and related models with a fixed value of the correlation between the unobservables.</p>","PeriodicalId":501101,"journal":{"name":"The Stata Journal: Promoting communications on statistics and Stata","volume":"59 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138517233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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