Link Checker Report

Summary

Errors per input

Errors in _site/hansen_singleton_1982.html

• [ERROR] https://fred.stlouisfed.org/ (at 1229:279) | Error (cached)

Errors in _site/hansen_singleton_1983.html

• [ERROR] https://fred.stlouisfed.org/ (at 1642:262) | Error (cached)

Errors in _site/opt_transport.html

• [404] https://www.math-econ-code.org/dynamic-programming (at 740:117) | Rejected status code: 404 Not Found

Errors in _site/phillips_drifts_volatilities.html

• [ERROR] https://fred.stlouisfed.org/series/CPIAUCSL (at 2812:72) | HTTP/2 protocol error. Server may not support HTTP/2 properly
• [ERROR] https://fred.stlouisfed.org/series/TB3MS (at 2813:142) | HTTP/2 protocol error. Server may not support HTTP/2 properly
• [ERROR] https://fred.stlouisfed.org/series/UNRATE (at 2813:37) | HTTP/2 protocol error. Server may not support HTTP/2 properly

Errors in _site/phillips_two_stories.html

• [ERROR] https://fred.stlouisfed.org/ (at 512:79) | HTTP/2 protocol error. Server may not support HTTP/2 properly

Errors in _site/two_auctions.html

• [ERROR] https://online.stat.psu.edu/stat415/book/export/html/834 (at 1092:62) | SSL certificate not trusted. Use --insecure if site is trusted

Errors in _site/zreferences.html

• [404] https://doi.org/10.1016/S0165-1889(06)80013-0 (at 302:199) | Rejected status code: 404 Not Found

Full Github Actions output

Start with the linked GitHub Actions output and the reported _site pages: hansen_singleton_1982.html, hansen_singleton_1983.html, opt_transport.html, phillips_drifts_volatilities.html, phillips_two_stories.html, two_auctions.html, and zreferences.html. Trace each failing URL to its source entry, verify which failures persist, and rerun the link checker. Done means the persistent broken links are corrected or appropriately handled and the report no longer shows actionable errors.