New Book · First Edition · July 2026
Reliving the 1920s
How 1921–1929 Is Repeating as 2020–2028
JD Unfiltered Research
First Edition
The Market Cycle That Rhymes
by Joseph M. Salvani & Daniel J. Walsh
A century apart, two decades tell a strikingly similar story. Reliving the 1920s maps the economic and market parallels between 1921–1929 and 2020–2028 — the credit expansions, speculative manias, technological booms, and shifts in monetary policy that seem to repeat with uncanny precision.
Drawing on decades of market history, Salvani and Walsh argue that understanding where we are in the cycle is the single most valuable edge an investor can have — and that the road ahead may already be written in the past.
Published by JD Unfiltered Research · First Edition, July 2026
About the Book
History Doesn’t Repeat — but It Rhymes
A data-driven look at how the roaring decade of a hundred years ago is echoing through today’s markets — and what that pattern may signal for 2028 and beyond.
The Parallels
From easy credit and a technology-fueled bull market to widening inequality and speculative excess, the 1920s and the 2020s share a remarkable structural resemblance.
The Cycle
Booms, blow-offs, and busts follow a rhythm. The book traces that rhythm year by year, aligning 1921–1929 against 2020–2028 to show where the analogy holds — and where it breaks.
The Takeaway
For investors, the value isn’t prediction — it’s positioning. Knowing which chapter of the cycle we’re living through changes how you read every headline.