Such a program would change the composition of assets and liabilities held by the Fed.

FORBES: Is Fed Policy Twisted Or Merely Sterile?

From the start of 2010 (when China first started publishing quarterly BOP data) we experiment with various currency proportions, before settling on the following composition of FX reserves: 60% held in USD assets, 30% in euros and 5% each in yen and sterling.

FORBES: How Much Longer Can China Accumulate Reserves?

As the composition of investment has shifted from traditional machinery towards shorter-lived assets, such as computers and software, the average rate of depreciation has increased.

ECONOMIST: Economics focus