Add Change in Changes (CiC) section to DiD chapter - #25
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[WIP] Summarize documentation for CiC
Add Change in Changes (CiC) section to DiD chapter
Apr 8, 2026
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Pull request overview
Adds a new “Change in Changes (CiC)” subsection to the Difference-in-Differences chapter, including citations and an executable qte::CiC() example, plus the necessary bibliography and dependency updates.
Changes:
- Added a CiC overview section (assumption, covariate adjustment, and
qte::CiC()usage) tod_in_d.qmd. - Added bibliography entries for Athey & Imbens (2006) and the
qteCiC reference page. - Added
qteto the packageDESCRIPTIONImports.
Reviewed changes
Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.
| File | Description |
|---|---|
d_in_d.qmd |
Introduces a CiC method section with an evaluated R example using qte::CiC(). |
references/references.bib |
Adds new references used by the CiC section. |
DESCRIPTION |
Adds qte to Imports to support the executable CiC example. |
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| author = {Athey, Susan and Imbens, Guido}, | ||
| title = {Identification and Inference in Nonlinear Difference-in-Differences Models}, | ||
| journal = {Econometrica}, | ||
| volume = {74}, | ||
| number = {2}, | ||
| pages = {431--497}, | ||
| year = {2006}, | ||
| doi = {10.1111/j.1468-0262.2006.00668.x}, | ||
| url = {https://doi.org/10.1111/j.1468-0262.2006.00668.x} | ||
| } | ||
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|
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| @misc{bcallaway_cic, | ||
| author = {Callaway, Brantly}, | ||
| title = {{CiC}: Change in Changes estimator for quantile treatment effects}, | ||
| year = {2024}, | ||
| url = {https://bcallaway11.github.io/qte/reference/CiC.html}, | ||
| note = {qte R package reference manual} |
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d_in_d.qmdreferences/references.bibreferences/references.bib```rto evaluated```{r}chunkqtetoDESCRIPTIONImports