The Iran war is not the perfect storm. But it shows us the shape of one — fiscal, energy, payments, alliance — and which combination would push the dollar over.
Dollar primacy has survived three crises in the past two decades because no challenger has been able to assemble the full set of conditions required to displace it. The Iran war stresses each of those conditions in isolation, and that is what makes it instructive.
Fiscal: the war's marginal cost is small against the U.S. deficit, but the political signal — that supplemental spending now passes without debate — raises the long-run path of issuance. Energy: a Strait of Hormuz disruption priced in oil but not in sustained inflation expectations, which is the more important variable. Payments: the secondary sanctions regime continues to push marginal flows to non-dollar rails, but the rails themselves remain shallow. Alliance: the Gulf states hedged, but did not defect.
The combination to watch is fiscal + payments + alliance, not any one alone. We are not there. But the war moved each variable in the direction of the eventual breaking point, and that is what the column argues principals should price.
Originally published in Wealth Magazine · 財訊. Reproduced here with the author's permission. For inquiries, contact SouthRock Group.