A: The maximum amount that a person can contribute to his Roth 401(k) for the calendar year 2015 is $18,000, or $24,000 for those over age 50.his means an investor under age 50 can invest $10,000 in a Roth 401(k) and $8,000 in a traditional 401(k) and vice versa.
Definition of free trade. : trade based on the unrestricted international exchange of goods with tariffs used only as a source of revenue.
âââDefinition: The North American Free Trade Agreement is a treaty between Canada, the United States and Mexico. These three countries have agreed to remove trade barriers between them. By eliminating tariffs, NAFTA increases investment opportunities.