Sustained robust growth and rising aggregate demand have also caused production bottlenecks outside of China, most notably in the agricultural commodity and mining sectors, which have helped lift oil prices to more than $100 per barrel. Adding to these woes are two other inflationary factors: first, Porcine Reproductive and Respiratory Syndrome (PRRS, or “blue-ear disease”) has been killing pigs – China’s main meat source – nationwide, and, second, terrible storms in January reduced the supply of grain and vegetables.