EghtesadOnline: Top American economic officials, set to meet their Chinese counterparts next week at a Group of 20 gathering, may find one of their toughest challenges yet to hash out agreed language on foreign-exchange policy.

EghtesadOnline: While Beijing has been busily damming up official channels for money to leave China, more than ever is leaking out through shady means as investors flee the country's slowing economy and weakening currency.