Many millions of people have a personal interest in what happens at a stock exchange.Some are directly concerned because they are part owners of companies through stock,others are holders of the government and other listed securities and yet another group are holders of insurance policies,since insurance companies invest much of their assets in listed securities.
Stock exchange or bourse is a mutual organization which provides facilities for stock brokers and traders, in trading company stocks and other securities, and for the issue of redemption of securities and other financial tools and capital events like the payment of income and dividends. The securities traded on a stock exchange include: shares issued by companies, unit trusts and other pooled investment products and bonds. To be able to trade a security on a certain stock exchange, it has to be listed there. Usually there is a central location at least for recordkeeping, but trade is less linked to such a physical place. Electronic networks run modern markets are, providing them great speed and cost of transactions. Stock exchange is often called the most important element of a stock market. The Demand and Supply in the stock markets is attracted by number of factors that affect the price of stocks.
History of stock exchanges:
In 12th century France, the courratiers de change were concerned with managing the debts of agricultural communities on behalf of the banks and these men also traded in debts. These men were the first brokers.
In the middle of the 13th century, Venetian bankers traded in government securities. In 1351, the Venetian Government outlawed spreading rumors about lowering the price of government funds. Because of this rumor people in Pisa, Verona, Genoa and Florence also started trading in government securities which was possible because there were independent city states ruled by a council of powerful citizens during the 14th century.