hyperdense cities

An arcology is a hyperdense city designed to maximize human interaction; maximize access to shared, cost-effective infrastructural services like water and sewage; minimize the use of energy, raw materials and land; reduce waste and environmental pollution; and allow interaction with the surrounding natural environment.

These largely hypothetical structures would contain a variety of residential and commercial facilities and minimize individual human environmental impact. They are often portrayed as self-contained or economically self-sufficient, such as the above design for a carbon neutral superstructure in Dubai.

Free trade is a system of trade policy that allows traders to act and transact without interference from government. According to the law of comparative advantage the policy permits trading partners mutual gains from trade of goods and services.

A maquiladora or maquila is a factory that imports materials and equipment on a duty-free and tariff-free basis for assembly or manufacturing and then re-exports the assembled product, usually back to the originating country.

(wikipedia)