A Note on Identification of Match Fixed Effects as Interpretable Unobserved Match Affinity
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arXiv
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| Format: | Preprint |
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2024
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| _version_ | 1866916363706040320 |
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| author | Otani, Suguru Sugano, Tohya |
| author_facet | Otani, Suguru Sugano, Tohya |
| contents | We highlight that match fixed effects, represented by the coefficients of interaction terms involving dummy variables for two elements, lack identification without specific restrictions on parameters. Consequently, the coefficients typically reported as relative match fixed effects by statistical software are not interpretable. To address this, we establish normalization conditions that enable identification of match fixed effect parameters as interpretable indicators of unobserved match affinity, facilitating comparisons among observed matches. Using data from middle school students in the 2007 Trends in International Mathematics and Science Study (TIMSS), we highlight the distribution of comparable match fixed effects within a specific school. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2406_18913 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | A Note on Identification of Match Fixed Effects as Interpretable Unobserved Match Affinity Otani, Suguru Sugano, Tohya Econometrics We highlight that match fixed effects, represented by the coefficients of interaction terms involving dummy variables for two elements, lack identification without specific restrictions on parameters. Consequently, the coefficients typically reported as relative match fixed effects by statistical software are not interpretable. To address this, we establish normalization conditions that enable identification of match fixed effect parameters as interpretable indicators of unobserved match affinity, facilitating comparisons among observed matches. Using data from middle school students in the 2007 Trends in International Mathematics and Science Study (TIMSS), we highlight the distribution of comparable match fixed effects within a specific school. |
| title | A Note on Identification of Match Fixed Effects as Interpretable Unobserved Match Affinity |
| topic | Econometrics |
| url | https://arxiv.org/abs/2406.18913 |