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                  | A stock exchange, share market or bourse 
                      is a corporation or mutual organization which provides facilities 
                      for stock brokers and traders, to trade company stocks and 
                      other securities. Stock exchanges also provide facilities 
                      for the issue and redemption of securities as well as other 
                      financial instruments and capital events including 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.  A stock 
                      exchange is often the most important component of a stock 
                      market. Supply and demand in stock markets is driven by 
                      various factors which, as in all free markets, affect the 
                      price of stocks (see stock valuation).  |  |  |  Usually there 
              is a central location at least for recordkeeping, but trade is less 
              and less linked to such a physical place, as modern markets are 
              electronic networks, which gives them advantages of speed and cost 
              of transactions. Trade on an exchange is by members only. The initial 
              offering of stocks and bonds to investors is by definition done 
              in the primary market and subsequent trading is done in the secondary 
              market.
 There is usually 
                no compulsion to issue stock via the stock exchange itself, nor 
                must stock be subsequently traded on the exchange. Such trading 
                is said to be off exchange or over-the-counter. This is the usual way that bonds are traded. Increasingly, stock exchanges are part 
                of a global market for securities. History 
                of stock exchangesIn 11th century 
                France the courtiers de change were concerned with managing 
                and regulating the debts of agricultural communities on behalf 
                of the banks. As these men also traded in debts, they could be 
                called the first brokers. Some stories 
                suggest that the origins of the term "bourse" come from the Latin 
                bursa meaning a bag because, in 13th century Bruges, 
                the sign of a purse (or perhaps three purses), hung on the front 
                of the house where merchants met. However, it 
                is more likely that in the late 13th century commodity traders 
                in Bruges gathered inside the house of a man called Van der Burse, 
                and in 1309 they institutionalized this until now informal meeting 
                and became the "Bruges Bourse". The idea spread quickly around 
                Flanders and neighbouring counties and "Bourses" soon opened in 
                Ghent and Amsterdam. In the middle 
                of the 13th century, Venetian bankers began to trade in government 
                securities. In 1351, the Venetian Government outlawed spreading 
                rumors intended to lower the price of government funds. There 
                were people in Pisa, Verona, Genoa and Florence who also began 
                trading in government securities during the 14th century. This 
                was only possible because these were independent city states ruled 
                by a council of influential citizens, not by a duke. The Dutch 
                later started joint stock companies, which let shareholders invest 
                in business ventures and get a share of their profits - or losses. 
                In 1602, the Dutch East India Company issued the first shares 
                on the Amsterdam Stock Exchange. It was the first company to issue 
                stocks and bonds. In 1688, the trading of stocks began on a stock 
                exchange in London. Roles of 
                a Stock Exchange  Raising 
                capital for businesses --The 
                Stock Exchange provides companies with the facility to raise capital 
                for expansion through selling shares to the investing public. Mobilizing 
                savings for investment -- When people draw their savings 
                and invest in shares, it leads to a more rational allocation of 
                resources because funds, which could have been consumed, or kept 
                in idle deposits with banks, are mobilized and redirected to promote 
                business activity with benefits for several economic sectors such 
                as agriculture, commerce and industry, resulting in a stronger 
                economic growth and higher productivity levels and firms. Facilitating 
                company growth Companies 
                view acquisitions as an opportunity to expand product lines, increase 
                distribution channels, hedge against volatility, increase its 
                market share, or acquire other necessary business assets. A takeover 
                bid or a merger agreement through the stock market is one of the 
                simplest and most common ways for a company to grow by acquisition 
                or fusion. Redistribution 
                of wealth -- Stocks exchanges do not exist to redistribute 
                wealth. However, both casual and professional stock investors, 
                through dividends and stock price increases that may result in 
                capital gains, will share in the wealth of profitable businesses. Corporate 
                governance --  
                having a wide and varied scope of owners, companies generally 
                tend to improve on their management standards and efficiency in 
                order to satisfy the demands of these shareholders and the more 
                stringent rules for public corporations imposed by public stock 
                exchanges and the government. Consequently, it is alleged that 
                public companies (companies that are owned by shareholders who 
                are members of the general public and trade shares on public exchanges) 
                tend to have better management records than privately-held companies 
                (those companies where shares are not publicly traded, often owned 
                by the company founders and/or their families and heirs, or otherwise 
                by a small group of investors). However, some well-documented 
                cases are known where it is alleged that there has been considerable 
                slippage in corporate governance on the part of some public companies 
                (Pets.com (2000), Enron Corporation (2001), One.Tel (2001), Sunbeam 
                (2001), Webvan (2001), Adelphia (2002), MCI WorldCom (2002), or 
                Parmalat (2003), are among the most widely scrutinized by the 
                media). Creating 
                investment opportunities for small investors -- As 
                opposed to other businesses that require huge capital outlay, 
                investing in shares is open to both the large and small stock investors because a person buys 
                the number of shares they can afford. Therefore the Stock Exchange 
                provides the opportunity for small investors to own shares of 
                the same companies as large investors. Government 
                capital-raising for development projects -- Governments 
                at various levels may decide to borrow money in order to finance 
                infrastructure projects such as sewage and water treatment works 
                or housing estates by selling another category of securities known 
                as bonds. These bonds can be raised through the Stock Exchange 
                whereby members of the public buy them, thus loaning money to 
                the government. The issuance of such municipal bonds can obviate 
                the need to directly tax the citizens in order to finance development, 
                although by securing such bonds with the full faith and credit 
                of the government instead of with collateral, the result is that 
                the government must tax the citizens or otherwise raise additional 
                funds to make any regular coupon payments and refund the principal 
                when the bonds mature. Barometer 
                of the economy At the stock 
                exchange, share prices rise and fall depending, largely, on market 
                forces. Share prices tend to rise or remain stable when companies 
                and the economy in general show signs of stability and growth. 
                An economic recession, depression, 
                or financial crisis could eventually lead to a stock market crash. 
                Therefore the movement of share prices and in general of the stock 
                indexes can be an indicator of the general trend in the economy. Major 
                stock exchanges Twenty 
                Major Stock Exchanges In The World: Market Capitalization & 
                Year-to-date Turnover at the end of October 2007 Note 1: 
                includes the Copenhagen, Helsinki, Iceland, Stockholm, Tallinn, 
                Riga and Vilnius Stock ExchangesNote 2: 
                latest data available is at the end of June 2007
 Note 3: 
                latest data available is at the end of September 2007
 Listing 
                requirements Listing requirements 
                are the set of conditions imposed by a given stock exchange upon 
                companies that want to be listed on that exchange. Such conditions 
                sometimes include minimum number of shares outstanding, minimum 
                market capitalization, and minimum annual income. Requirements 
                by stock exchange Companies 
                have to meet the requirements of the exchange in order to have 
                their stocks and shares listed and traded there, but requirements 
                vary by stock exchange: 
                London 
                  Stock Exchange: The main market of the London Stock Exchange has requirements 
                  for a minimum market capitalization (£700,000), three years 
                  of audited financial statements, minimum public float (25 per 
                  cent) and sufficient working capital for at least 12 months 
                  from the date of listing.  
                NASDAQ 
                  Stock Exchange: To be listed on the NASDAQ a company must have issued at least 1.25 million 
                  shares of stock worth at least $70 million and must have earned 
                  more than $11 million over the last three years ([1]).  
                New 
                  York Stock Exchange: To be listed on the New York Stock Exchange (NYSE), for example, 
                  a company must have issued at least a million shares of stock 
                  worth $100 million and must have earned more than $10 million 
                  over the last three years ([2]).  
                Bombay 
                  Stock Exchange: Bombay Stock Exchange 
                  (BSE) has requirements for a minimum market capitalization of 
                  Rs.250 Million and minimum public float equivalent to Rs.100 
                  Million ([3]).  References  
                
                  ROLE OF THE EXCHANGE IN THE 
                    ECONOMY, NAIROBI STOCK EXCHANGE, source: Nairobi Stock Exchange 
                    website, accessed February 2007 
                  The Role of a Stock Market in a General Equilibrium Model with 
                    Technological Uncertainty, Peter A. Diamond, The American 
                    Economic Review, Vol. 57, No. 4 (Sep., 1967), pp. 759-776, 
                    source: JSTOR website, accessed February 
                    2007  |