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Tim H.'s avatar

The appeal of E/P-CPI is undeniably strong, but only for the rational. A better indicator than E/P or the real value(=E/P-CPI) is the "yield premium"=E/P-RFR (risk free rate: 2,5,10yr T-note), where the CPI cancels. By design, the CPI underestimates the real inflation (based on same-for-same replacement cost and without other "corrections" applied by the Fed). But even there, when mania sets in (such as 1999-2000, 2008-9, and 2023-5, still does not have much predictive power, and the price often leads it. It can stay at absurd levels (e.g. negative) and mad-crowd still screams for more. Having said that it's hard to resist seeing the updated history of all three: E/P, E/P-CPI and E/P-RFR. The latter currently stands well below 0.5%.

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Loren's avatar

Excellent read, Callum.

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