The order condition is
A. A necessary and sufficient condition for identification.
B. A necessary but not sufficient condition for identification.
C. A sufficient but not necessary condition for identification.
D. A condition that is neither necessary nor sufficient for identification.
Answer:B
The order condition is
A. A necessary and sufficient condition for identification. B. A necessary but not sufficient condition for identification. C. A sufficient but not necessary condition for identification. D. A condition that is neither necessary nor sufficient for identification.