Basel: a Big Mac priced by Roche, Novartis, and the Rhine pharma cluster
Basel's Big Mac price tracks Zurich and Geneva closely, but with a distinctive industry signature. Basel hosts Roche, Novartis, and a dense pharmaceutical and chemical cluster along the Rhine corridor — high-wage employment that supports premium restaurant pricing without the financial-sector or international-organization premium of the larger Swiss cities.
What makes Basel useful for the index is its cross-border position. Basel sits at the corner where Switzerland, Germany, and France meet, and the cost-of-living gradient across that border is among the steepest in Europe. A Basel Big Mac costs nearly twice what one across the Rhine in German Lörrach or French Saint-Louis costs — same currency union (EUR) on the German and French sides, totally different economy on the Swiss side. The spread is one of the cleanest illustrations of currency sovereignty's effect on local pricing in the entire dataset.