Evaluating the Distributional Approach to Inferring Marketplace Exchange: A Test Case from the Mexican Gulf Lowlands

Abstract

Abstract Over a decade ago Kenneth Hirth (1998, 2000) developed a “distributional approach” for archaeologically inferring the existence of marketplace exchange based on analyses of domestic artifact collections. Domestic collections, he reasoned, will be relatively homogeneous in areas where most or all households rely on marketplace exchange to acquire domestic provisions. The present study evaluates Hirth’s distributional approach using a statistical measure of diversity (heterogeneity) to quantify variability among domestic collection units over a large area. The data for this study come from the Middle Postclassic lower Blanco region of Veracruz (A.D. 1200–A.D. 1350), an unknown context of marketplace exchange. A comparison of diversity scores calculated on surface sherd collections from the lower Blanco region with scores from Late Postclassic Teotihuacan (A.D. 1350–A.D. 1520)—a known context of marketplace exchange—suggests the existence of a marketplace exchange system in the lower Blanco region, likely centered at the town of El Sauce. In addition, changes in intercollection diversity (sherds) and obsidian concentrations with increasing distance from the center suggest El Sauce’s market service area encompassed a radius of approximately six to nine kilometers.

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