Inflation Arrives in Waves: Four Episodes Destroyed 72% of the Dollar's Value

Inflation isn't a slow leak but a series of concentrated bursts—a pattern that fundamentally challenges how we understand and prepare for currency erosion. By decomposing 113 years of CPI data into four distinct inflationary episodes (WWI, WWII, 1968–1982, and 2021–2023), this analysis reveals that 72% of purchasing power destruction occurs in just 29% of the time, suggesting that policymakers and investors must anticipate regime breaks rather than assume steady conditions. Understanding these cyclical patterns is critical for effective monetary policy, portfolio strategy, and long-term financial planning.