The economic basis for trade is O insourcing.
O none of these.
O speculative attacks.
comparative advantage.
O the race to the bottom.

The basis for trade is comparative advantage, not absolut advantage. Individuals, firms, and countries are better off if they specialize in producing goods and services for which they have a comparative advantage and obtain the other goods and services they need by trading.

muslims control the north africa during the period of 1500 up

to 1800. they made a barrier to prevent further european exploration from

entering the africa from the north. however, the dutch ware still able to move

toward the interior with having south africa as one of the routes leading to

the east for trading with asia.

answer; intellectual property protection;