Malcolm Turnbull

In economics, one of the most important concepts is 'opportunity cost' - the idea that once you spend your money on something, you can't spend it again on something else.
In economics, one of the most important concepts is 'opportunity cost' - the idea that once you spend your money on something, you can't spend it again on something else.
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These are some quotes by Australian author Malcolm Turnbull Politician, who was born on October 24, 1954.