Rosario: an Argentine industrial city, same currency, same inflation arc
Rosario sits on the Río Paraná and serves as the export hub for Argentina's massive soybean and grain harvest. The city's Big Mac price tracks Buenos Aires and Córdoba in peso terms — because the peso is the peso wherever you spend it, and the entire country's burger pricing has moved together through every Argentine inflation cycle since 2010.
For Big Mac Index analysts, Rosario adds a third confirmation point. Three large Argentine cities, three identical inflation arcs, all in lockstep with peso M2 growth — that's a complete macro story. It's also a useful illustration of why the Big Mac Index is more robust than single-city price tracking: replicated across Buenos Aires, Córdoba, and Rosario, the same signal appears, which strengthens the conclusion that Argentine inflation is monetary and broad-based, not localized.