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.
job specialization. The process of focusing one's occupational concentration on a specific area of expertise. An increase in job specialization among employees can make them less flexible since it tends to reduce their ability to perform other types of work within the business that fall outside their particular specialty.