Nonetheless, it still defined the dollar as a fixed weight of gold, and for 20 years supported economic results for all Americans that were far superior to those produced by the paper dollar system of the past 42 years.
The NAR also has supported a Senate bill that would offer subprime borrowers an alternative by expanding availability of fixed-rate loans backed by the Federal Housing Administration.
Dr Alex Linley, from the centre, said that even though other studies supported the genetic argument, it was wrong for anyone to think that nature had dealt them a fixed hand in happiness terms.