The most visible reform was that traders no longer stalked the floor of the Exchange, animatedly dealing with each other face-to-face.
BBC: Margaret Thatcher: How her changes affected your finances
London has almost a third of the world's foreign-exchange dealing and over a third of over-the-counter derivatives business.
The Johannesburg exchange is one of the many where insider dealing is widely assumed to be rife.
But starting to do so involves fostering a competitive private sector and dealing with the exchange rate.
This means that businesses in Denmark stand to benefit from the elimination of exchange-rate risk when dealing with their main trading partners.
By moving from telephone dealing to automated computer trading, the exchange was seeking to cut costs for its customers.
Some of the parliamentarians suspect that Mr Lawrence was rudely ejected last year because his reforms would have shrunk the dealing profits of the middlemen who run the exchange.
After intense negotiating, the Lincoln provision was watered down to allow interest rate and foreign exchange swaps dealing to remain inside a commercial bank.
The US financial regulator, the Securities and Exchange Commission (SEC), is already suing unnamed traders for insider dealing.
The government has abolished jail terms for those caught dealing in foreign currency, offered extra incentives for private investment and brought the official exchange rate closer to the black-market one.
In early 1933, the federal government (not the Federal Reserve) declared a bank holiday prohibiting banks from paying out gold or dealing in foreign exchange.
WSJ: Arthur B. Laffer: Taxes, Depression, and Our Current Troubles
Building on the decisions and commitments made at the G20 last weekend, where China agreed that it was determined to have greater flexibility in exchange rates and agreed to stimulate more domestic demand, the President raised those issues as critical to dealing with the current economic issues, pressed on both the currency issue and on rebalancing and domestic demand.
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