On balance, they suggest that trade is likely to become increasingly important as a supplement to domestic production in ensuring adequate food availability (and as a source of export earnings and income as will be seen in the following section). The Global Harvest Initiative’s 2012 GAP report compares the growth in projected demand in each region with the growth in projected supply based on a continuation of current growth rates in agricultural total factor productivity. It concludes that, on this business-as-usual scenario, 74% of the growth in total demand can be met by maintaining the current TFP growth rate, leaving a significant gap to be met by imports. In South and South-east Asia, the proportion is 82% and in the Middle East and North Africa it is 83%.