Stockbroker in the context of "Wall Street Crash of 1929"

A stock exchange, securities exchange, or bourse is an exchange where stockbrokers and traders can buy and sell securities, such as shares of stock, bonds and other financial instruments. Stock exchanges may also provide facilities for the issue and redemption of such securities and instruments and capital events including the payment of income and dividends. Securities traded on a stock exchange include stock issued by listed companies, unit trusts, derivatives, pooled investment products and bonds. Stock exchanges often function as "continuous auction" markets with buyers and sellers consummating transactions via open outcry at a central location such as the floor of the exchange or by using an electronic system to process financial transactions.

To be able to trade a security on a particular stock exchange, the security must be listed there. Usually, there is a central location for record keeping, but trade is increasingly less linked to a physical place as modern markets use electronic communication networks, which give them advantages of increased speed and reduced cost of transactions. Trade on an exchange is restricted to brokers who are members of the exchange. In recent years, various other trading venues such as electronic communication networks, alternative trading systems and "dark pools" have taken much of the trading activity away from traditional stock exchanges.

A stock trader or equity trader or share trader, also called a stock investor, is a person or company involved in trading equity securities and attempting to profit from the purchase and sale of those securities. Stock traders may be an investor, agent, hedger, arbitrageur, speculator, or stockbroker. Such equity trading in large publicly traded companies may be through a stock exchange. Stock shares in smaller public companies may be bought and sold in over-the-counter (OTC) markets or in some instances in equity crowdfunding platforms.

Stock traders can trade on their own account, called proprietary trading or self-directed trading, or through an agent authorized to buy and sell on the owner's behalf. That agent is referred to as a stockbroker. Agents are paid a commission for performing the trade. Proprietary or self-directed traders who use online brokerages (e.g., Fidelity, Interactive Brokers, Schwab, tastytrade) benefit from commission-free trades.

The Nairobi Securities Exchange (NSE) was established in 1954 as the Nairobi Stock Exchange, based in Nairobi the capital of Kenya. It was a voluntary association of stockbrokers in the European community registered under the Societies Act in British Kenya. The exchange had 66 listed companies in February 2021.

Ricardian economics are the economic theories of David Ricardo, an English political economist born in 1772 who made a fortune as a stockbroker and loan broker. At the age of 27, he read An Inquiry into the Nature and Causes of Wealth of Nations by Adam Smith and was energised by the theories of economics.

His main economic ideas are contained in On the Principles of Political Economy and Taxation (1817). This set out a series of theories which would later become theoretical underpinnings of both Marx's Das Kapital and Marshallian economics, including the theory of economic rent, the labour theory of value and above all the theory of comparative advantage.