From the  Guardian:
 
China's decision on Friday to link domestic  fuel prices to the international price of crude oil, but increase consumption  taxes on gasoline and diesel sharply to spur more efficient use of energy  in the medium term, raises the question whether the incoming Obama administration  might be tempted to do the same.
China is taking advantage of a cyclical  pull back in energy to push through a permanent structural increase  in taxes and prices. The aim is to combine a short-term boost to the  economy with longer-term and more consistent incentives for improving  energy efficiency.
By consolidating a series of tolls and  administrative charges into a single, easy to collect consumption tax,  the government is simplifying the tax system, creating a new source  of revenue, and ensuring the change will have no impact on the politically  sensitive inflation rate.
More importantly, it creates a fairly  simple mechanism for raising energy costs further in future to spur  additional efficiency gains, irrespective of cyclical changes in the  crude oil price.
Once short-term economic weakness is  past, the government can easily raise the consumption tax progressively  over the next few years.
