ABC Online | Babies' sex could be influenced by mother 'feeling richer', ANU researchers suggest ABC Online Women who believe themselves to be wealthy could be more likely to have boys, and that is a significant factor behind Australia's bucking of global declining male birth rates, new research suggests. Mums who think rich have more boys: study Australia's capital city is proportionally producing a greater number of male babies than anywhere else in the world Why Australia is bucking the trend on male births |