Inflation killed the penny. Now it’s coming for your dollar.

The decision to retire the penny addresses a symptom rather than the underlying cause. A coin becomes uneconomical to produce when its metal and manufacturing costs exceed its face value — a threshold driven largely by inflation eroding purchasing power over decades. Lawmakers can legislate the coin out of existence, but they cannot legislate away the currency debasement that made it obsolete.

For markets, the episode is a reminder that inflation is rarely a one-time event. It compounds quietly, reshaping what money can buy and which denominations remain practical. The same dynamic that made the penny unviable raises broader questions about the future purchasing power of larger denominations and about expectations for interest rates, bond yields, and currency valuation over time.

What to watch: whether policymakers treat the penny's retirement as a one-off housekeeping matter or as a prompt to examine monetary conditions more seriously. Investors may also monitor whether similar cost-of-production debates emerge around other coins, and how inflation expectations are reflected in long-dated asset prices.