In Zhijiang, a Difference-of-Trade (DOT) company operates as a key player in the local economic landscape.

A DOT company essentially exists due to the inherent comparative advantage offered by Zhijiang. This could be related to factors like abundant natural resources, skilled labor, or unique manufacturing processes.

These companies focus on importing goods that are not locally produced but have higher value or better quality. Conversely, they may also engage in exporting their specialty products or services to international markets.

In summary, a Difference-of-Trade company in Zhijiang operates as an agent of economic efficiency by leveraging local comparative advantages and participating in global trade dynamics.