The Integration of Periodic Markets in Mayan Guatemala: A Gravity Approach

Mayan towns in the Guatemalan highlands hold periodic markets on specific days of the week. A market is attended by local townspeople, by peasants residing in the town’s hinterland, and by vendors bringing wares from other towns. This study aims to determine the effects of physical, environmental, and cultural differences on the number of vendors that are sent from one Guatemalan town to a periodic market in another.

To understand how these markets are integrated, a gravity model is developed, examining the flow of vendors from 85 towns of residence to 15 market towns. In this model, the flow of vendors from one town to another is a function not only of physical distance, but of ecological complementarities, of linguistic differences, of road access, and of demographic endowments.

Results show that traveling vendors in these periodic markets do indeed integrate Guatemala both ethnically and ecologically, serving as a place in which different ethnic groups meet and bring in products that cannot be produced locally. Results also suggest that participation in markets is part of a diversified set of activities used by rural peasants to support their households.