Role of market

Markets bring together buyers and sellers of goods and services. Buyers are trying to find things important for their living and sellers are offering the goods to satisfy the buyers.
In some case they both can meet physically, for example at the stores, and in other cases, such as stock market, business can be transacted over the telephone, computer or the Internet.
In these days there are many definitions of market. One of them: It is the process by which households’ decisions about consumption of alternative goods, firms’ decisions about what and how to produce, and workers’ decisions about how much and for whom to work are all reconciled by adjustment of prices.
Much of economics is devoted to the study of how markets and prices enable society to solve the problems of what, how, and for whom to produce. For example: If you feel hungry, you’re trying to find something to eat, and you try to not spend much of your pocket money. So you find something cheaper, even though you like other kinds of food. You buy a hot dog instead of pizza, ‘cause the hot dog is much more cheaper than pizza.