If the value of the gift exceeds $100, you will be required to pay duty. If you have goods you intend to sell in the U.S., they will most likely be subject to duty, unless they are eligible for duty-free treatment under an international trade agreement (GSP, NAFTA, etc.).
Specialization of labor is a powerful force in an economy, benefiting small and large businesses alike. Workers produce more when they occupy specialized roles, so businesses can offer higher quality products at lower prices.
The phrase division of labor can justifiably be used to indicate any form of work specialization, such as the division of labor between men and women; and yet, ever since Adam Smith â s The Wealth of Nations (1776), it has come to refer to the division of tasks within an industrial process.