A 2018 study by economists at Boston-based Reeve & Associates and Puerto Rico-based Estudios Tecnicos has concluded that the 1920 Jones Act has no impact on either retail prices or the cost of livings on Puerto Rico. The study found that Puerto Rico received very similar or lower shipping freight rates when compared to neighboring islands, and that the transportation costs have no impact on retail prices on the island. The study was based in part on actual comparison of consumer goods at retail stores in San Juan, Puerto Rico, and Jacksonville, Florida, finding: no significant difference in the prices of either grocery items or durable goods between the two locations.