Which type of resource will improve through more education and training by workers?

The principal reason why the chain-weighted index for GDP and the CPI both overstate actual changes in prices is that

A) the basket of goods purchased by consumers never changes. B) price data is often inaccurate. C) it is hard to measure quality changes. D) all of the above

In the United States, between 1961 and 2011, there has been

i. a consistent , non-changing growth rate of potential GDP per person. ii. an increase in the standard of living based on real GDP per person. iii. fluctuations in real GDP per person around potential GDP per person. A) ii only B) i, ii and iii C) i and ii only D) ii and iii E) i only