One suggestion is for new financial instruments to be developed that mitigate the risks involved in long-term investments and make it easier for money to flow across borders.
The suggestion that had she lived today, the teenager would have been a "belieber" - a term used by his devoted fans to describe themselves - generated thousands of horrified responses on social networking websites.
This is the context in which Mr. Romney last week moved so pointedly to distance himself from a suggestion by one of his advisers, Glenn Hubbard, that Mr. Bernanke should be considered for another term.