Typed states for the displayed outbound observations.
Source: paper_references, paper_reference_links
Paper Citation Record · LEDGER
Difference in Differences with Time-Varying Covariates
As of 19 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 3 inbound Pith citation observations for arXiv:2202.02903.
A citation records a reference. It does not transfer a finding from one paper to another.
Coverage vector
One-hop event checks from named stored sources.
Source: scholarly_work_events, retraction_status_cache, observed 2026-08-18T06:34:40.430872+00:00
Pith citing papers itemized under the disclosed page cap.
Source: paper_references, paper_reference_links, observed 2026-08-11T12:20:15.995068Z
A source-named dated measurement, never combined with another source.
Source: arxiv_reference, observed 2026-07-04T19:20:07.101998Z
Reference resolution
0 of 0 outbound references displayed
- verified exact0
- verified fuzzy0
- unresolved0
- parse uncertain0
- malformed identifier0
- metadata mismatch0
External citation measurements
No source-named external measurement is stored.
Outbound references
No outbound reference observations are available for this paper version.
Pith citing papers
Observation 7116668e-73a0-48e5-9975-b55c68b2ba6c · inbound
Good Controls Gone Bad: Difference-in-Differences with Covariates cites this paper.
Good Controls Gone Bad: Difference-in-Differences with Covariates Difference in Differences with Time-Varying Covariates
Reference 7
- Resolution
- unresolved
- no resolver link, observed 2026-08-11T12:20:15.995068Z
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 2a452419-16e3-47df-8e5b-57c93ddc48eb · inbound
A formal approach to variable selection in difference-in-differences cites this paper.
A formal approach to variable selection in difference-in-differences Difference in Differences with Time-Varying Covariates
Reference 43
- Resolution
- verified exact
- arxiv_id, observed 2026-05-11T16:11:11.778107Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation 0daedf07-9fea-4b00-8d2f-90f1e050685f · inbound
Group-Level Treatment Effect Heterogeneity in Difference-in-Differences: A Balanced Approach cites this paper.
Group-Level Treatment Effect Heterogeneity in Difference-in-Differences: A Balanced Approach Difference in Differences with Time-Varying Covariates
Reference 28
- Resolution
- metadata mismatch
- arxiv_id, observed 2026-07-04T19:20:07.103735Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.