Federal Treasurer Joe Hockey has said he will consider the “Buffett rule”, which would charge a minimum rate of tax on very high income …

Federal Treasurer Joe Hockey has said he will consider the “Buffett rule”, which would charge a minimum rate of tax on very high income …
Warren Buffett, chairman of Berkshire Hathaway Inc, walks with his wife Astrid at the Allen & Company Sun Valley Conference If the Austr…