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.
Economic Definition of specialization. Offline Version: PDF. Term specialization Definition: The condition in which resources are primarily devoted to specific tasks. This is one of THE most important and most fundamental notions in the study of economics. Civilized human beings have long recognized that limited resources can be more effectively used in the production the goods and services that satisfy unlimited wants and needs if those resources specialize.