Common occurrences in real markets keep them from being theoretically perfect. Because of these occurrences, brokers and dealers are necessary to the smooth functioning of a secondary market.
One way in which a real market might not meet all the exacting standards of a theoretically perfect market is that many investors may not be present at all times in the marketplace. Further, a typical investor may not be skilled in the art of the deal or completely informed about every facet of trading in the asset. Clearly, most investors in even smoothly functioning markets need professional assistance. Investors need someone to receive and keep track of their orders for buying or selling, to find other parties wishing to sell or buy, to negotiate for good prices, to serve as a focal point for trading, and to execute the orders. The broker performs all of these functions. Obviously, these functions are more important for the complicated trades, such as the small or large trades, than for simple transactions or those of typical size.
A broker is an entity that acts on behalf of an investor who wishes to execute orders. In economic and legal terms, a broker is said to be an “agent” of the investor. It is important to realize that the brokerage activity does not require the broker to buy and hold in inventory or sell from inventory the financial asset that is the subject of the trade. (Such activity is termed “taking a position” in the asset, and it is the role of the dealer.) Rather, the broker receives, transmits, and executes investors’ orders with other investors. The broker receives an explicit commission for these services, and the commission is a “transaction cost” of the capital markets.
A real market might also differ from the perfect market because of the possibly frequent event of a temporary imbalance in the number of buy and sell orders that investors may place for any security at any one time. Such unmatched or unbalanced flow causes two problems. First, the security’s price may change abruptly even if there has been no shift in either supply or demand for the security. Second, buyers may have to pay higher than market-clearing prices (or sellers accept lower ones) if they want to make their trade immediately.
For example, suppose the consensus price for ABC security is $50, which was determined in several recent trades. Also suppose that a flow of buy orders from investors who suddenly have cash arrives in the mar- ket, but there is no accompanying supply of sell orders. This temporary imbalance could be sufficient to push the price of ABC security to, say, $55. Thus, the price has changed sharply even though there has been no change in any fundamental financial aspect of the issuer. Buyers who want to buy immediately must pay $55 rather than $50, and this difference can be viewed as the price of “immediacy.” By immediacy, we mean that buyers and sellers do not want to wait for the arrival of sufficient orders on the other side of the trade, which would bring the price closer to the level of recent transactions.
Tags: brokers, dealers, loan, mortgage, real estate