The Bahama’s has only a “comparative advantage” in the Cruising Industry, yet it directs much of its investments in building up the seaport in Nassau. Explain the trade theory model.

The Bahamas

(Ch 2) The Bahama’s has only a “comparative advantage” in the Cruising Industry, yet it directs much of its investments in building up the seaport in Nassau. Explain the trade theory model they’re using in their strategy and in plan language, why is this good for the country of The Bahamas. Please provide your reference.
(Ch 2) In terms of the ‘global supply chain’, how does “intra-industry partial specialization” improve ‘blockchain’ inventory management? https://youtu.be/RplnSVTzvnU
(Ch 3) Based on the factor-endowment theory, how does our economic interdependence with China show itself in the products that we import and export. Please explain and provide your reference.