A) measurement error
B) the increase in the size of the service sector
C) a reduction in R&D spending
D) a reduction in the fertility of research
E) all of the above
ANSWER:
D
A) measurement error
B) the increase in the size of the service sector
C) a reduction in R&D spending
D) a reduction in the fertility of research
E) all of the above
ANSWER:
D