Concept

Negative Real Rate of Return on Physical Currency

Given that physical currency has a nominal interest rate of zero, its real rate of return is determined solely by the inflation rate. When inflation (π\pi) is positive, the real return for holding currency becomes negative, specifically equal to π-\pi. This negative return means that cash continuously loses purchasing power, making it an unsuitable asset for long-term savings.

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Updated 2026-05-02

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