Terms and concepts

market structure
The structure of a market as a whole, taking into consideration two main factors: the number of firms in the market and whether goods offered are identical, similar, or differentiated.
regulation	Government restrictions on a business firm.
mixed economy	A mixed economic system is a system that combines aspects of both capitalism and socialism.
price mechanism	Price mechanism refers to the system where the forces of demand and supply determine the prices of commodities and the changes therein. It is the buyers and sellers who actually determine the price of a commodity.