Global demand for ethylene is expected to grow at a healthy rate of 4.8% CAGR between 2011-15, while capacity growth is expected to be much lower at 1.2% CAGR. This is expected to lead to tighter supply conditions and improved margins for cracker operators after 2011. Demand will be driven by strong polyethylene demand from developing Asian economies like China and India where per capita consumption is currently very low compared to global averages. While there may be oversupply in 2010-2011 due to significant new capacity additions, utilization rates and margins are expected to improve after 2011 as limited new capacity is expected to come online.