In the second millennium cal BC, a new metal conquered Europe: the alloy of copper and tin that improved the quality of tools and weapons. This development, we argue, initiated a framework for a new political economy. We explore how a political economy approach may help understand the European Bronze Age by focussing on regional comparative advantages in long-distance trade and resulting bottlenecks in commodity flows. Links existed in commodity chains, where obligated labour and ownership of resources helped mobilize surpluses, thus creating potential for social segments to control the production and flows of critical goods. The political economy of Bronze Age Europe would thus represent a transformation in how would-be leaders mobilized resources to support their political ends. The long-distance trade in metals and other commodities created a shift from local group ownership towards increasingly individual strategies to obtain wealth from macro-regional trade. We construct our argument to make sense of available data, but recognize that our model's primary purpose is to structure future research to test the model.

This article presents the results of a comprehensive provenance study based on a combined geochemical-isotopic and archaeological approach, comprising 98 analyses of 97 copper-alloy objects from the Danish Bronze Age. When it comes to the question of the origin of the metal, our interpretations diverge somewhat from earlier established theories about the origin of copper imported to Denmark, which mainly pointed to Central and Eastern Europe. Clear geochronological patterns in the Danish dataset are interpreted as being due to shifts in ore sources; reflecting varying areas of origin as well as the utilization of varying ore types. This again relates to shifting trade networks/suppliers and shifting technological trends. Plausible sources for Danish copper-alloys identified in the current study are ore regions in the British Isles, Alpine ore districts in Italy and Austria, as well as ore regions in the western part of the Mediterranean and to some degree the Slovak Carpathians. The comparison includes hundreds of recently published lead isotope data for ores in Slovakia, the Iberian Peninsula and the Italian and Austrian Alps.

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