NO.PZ2018062003000087
问题如下：
Suppose the GDP deflator is less than 1, an economist may conclude that:
选项：
A. the economy is in the period of stagflation.
B. the economy is in the period of deflation.
C. the economy is in the period of inflation.
解释：
B is correct.
When real GDP exceeds nominal GDP, the GDP deflator is less than 1. In this condition, prices decrease and deflation occurs.
考点：GDP deflator
解析：当GDP deflator小于1，意味着名义GDP已经小于真实的GDP，此时一国经济通常运行在通缩的阶段。
题目中小于1严格地说应该是小于100吧？
