Growth Accounting,popularized by Robert Solow,attempts to Attribute a Change in Aggregate

Growth accounting,popularized by Robert Solow,attempts to attribute a change in aggregate output

A) to its most important single cause.
B) separately between changes in government policy and changes in total factor productivity.
C) separately between changes in total factor productivity and changes in the supplies of factors of production.
D) separately between changes in the supplies of factors of production and changes in government policy.