Unlocked with book purchase
The Premium Companion
The premium companion is the half of the book that does not fit on the page. For each chapter, it includes:
- Explorer presets. The exact panel state behind every chapter figure, loaded into the SPI Explorer with one click.
- Behind the finding. The technical notes that the narrative chapters intentionally do not carry — clustering choices, robustness checks, sample restrictions, vocabulary lists.
- Annotated case studies. Longer treatments of cases the chapters touch only briefly: Continental Illinois, BCCI, Penn Square, Lincoln Savings, Bear Stearns CSE, March 2020 MMF stress, the Bank of England's LDI episode, the 2025 CFPB dismantling.
- Discussion questions and instructor notes. Same content that appears under teaching, but with answer keys for chapters you have just read.
- Errata, updates, and panel revisions. The SPI is versioned. The companion stays in sync.
Access is unlocked with a code printed inside the back cover of the
physical book or sent by email after an ebook purchase. Code redemption
will go live alongside the book release. Magic-link auth, no passwords.