For two years, emerging markets companies have delivered inferior earnings growth and investment returns compared to peers in sluggish developed market economies. Now, the consensus is that earnings growth will catapult from near-zero in 2012 to 13 per cent in 2013. Hopes were high at the end of 2010 and 2011, too, yet analysts were then forced to revise down their earnings estimates. Will 2013 represent another triumph of hope over experience?