What if Brazil hikes its Selic rate to 16% to defend the real?
A BCB push of Selic toward 16% to defend the real ripples through EM local-currency debt: the read is higher EM reals, a firmer dollar and pressure on carry and high-beta risk as the highest-yielder ratchets rates. Rhymes with Brazil's 2015-16 and 2021-22 tightening cycles that lifted global EM-rate betas. Brazil exports soy/iron ore to China and funds via local debt; a Selic defense protects FX at growth's expense. Forward: heavy domestic debt service makes the fiscal-monetary loop the real risk, not FX alone.
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The butterfly cascade
How this trigger trickles across markets, left → right — the root shock, its first‑order moves, then the ripple effects. Drag any node; tap a market for its real price history.
Resolution timeline — how this probability is moving
Our model's odds (electric blue) over time vs the market's (Polymarket, amber), from the past toward the 0–6 months horizon. Each dot is a real macro event that nudged the probability — green pushed it up, red pushed it down. Tap a dot for the source. Loading the probability audit trail…
What it would mean
If this plays out, it is a risk-off shock. Brazil's central bank pushes Selic sharply higher to defend the real, sending global EM-rates and local-currency debt reeling. The trigger decomposes into signed root‑shocks — FX carry appetite ▼ · Fed policy path ▲ — which propagate through our causal graph to the markets below.