How to Improve Stock Exchange Systems

Stock Exchanges are more and more technology driven. The information systems SE uses, can be improved by using a technique that is entering all kinds of domains these days; Data Mining.
Data mining and business intelligence has changed many businesses already. A good example is sports. In soccer the game has been made more interesting because of additional comments that were provided by information systems. We get information on how many times the team has won in similar circumstances, how many penalties a player has missed, or how many corners converted into goals...
The Stock Exchange is another area where defaming technique could help to improve the main function of the exchange. This is to offer a platform for trade. During this crisis the value of Stock exchange stocks have decreased more than you would imagine the profits would decline, given the amount of trading. Many will trade less during a bear-market.
The worst a stock-exchange can do is to close down. This happened last week in Moscow and in Vienna. Closing down an exchange will not raise the confidence people have in such an exchange. There are many other mechanisms to control sell-off by stock-exchange-rules, but these are not always enough.
The decision to close an exchange is motivated by the fear of a massive sell-off. Similar to a run on banks. If people sell now, how do we know whether they come back ever?
Data mining may offer help in such a situation. To gain back some confidence wall displays or information on websites may offer information to put the decline in a perspective; for example: "in ... (similar) situations a three days decline like this, was followed by a 15% increase in the following two days."
The right and exact messages need to be assessed, but the idea is to control pure fear. And to offer an alternative to closing the exchange.
The Soccer game has changed since data mining and maturity of information systems. The stock exchange is a market that has already changed much of its form. It used to be a floor with people, and they could communicate to each other, now only information systems can control a path that has been entered by use of these same information technology. And defaming seems the most appropriate for the short term. Stock-Exchange-stocks that are best developed with these kinds of technology will outperform other SE-stocks in the future.