For example, trading in derivatives or currency speculation is a chresmatical activity.
Hedge funds have gained a reputation for aggressive currency speculation since 1996.
They thought it was safe for their business and currency speculations.
China has tried with little success to discourage this and other forms of currency speculation.
Others' gains are less ill-gotten, depending on how you view the morality of currency speculation.
The date was kept secret (called "day X") to avoid currency speculation, and only published 2 days in advance.
Our group has serious doubts, however, as regards the proposal to introduce a tax on currency speculation.
It is a question of finding a mechanism to check short-term currency speculation.
Just a 0.5 % tax on this currency speculation would be enough to cancel the debts of all poor countries.
But his business acumen is not limited to currency speculation.