trade barrier

This term is primarily used in economic, political, and legal registers to describe mechanisms that hinder the free flow of goods across borders. It carries a neutral to negative connotation depending on the perspective; a domestic producer may view a barrier as a necessary protection, while a consumer or foreign exporter views it as an artificial distortion of the market.

Common examples include tariffs, quotas, and embargoes. In professional discourse, it is often contrasted with "free trade," which represents the absence of such barriers. The term is typically used in the context of geopolitical strategy and macroeconomic policy.