First, food and energy are a bigger part of CPI baskets in these countries than in the developed economies, so the impact there of the rises in commodity prices is larger. For the same reason, the risk of second-round effects must also be higher.
Second, monetary policy has generally been fairly easy in many of these countries, because of the link – explicit or implicit – that they have to the US dollar. In some of the oil-producing Gulf states, where there are explicit dollar pegs, demand growth is very strong and inflation has increased.