NO.PZ2018110601000003
问题如下：
Richard, a junior financial analyst, lists the following asset class specifications.
Equity: US equities and non-US equities
Debt: US investment-grade corporate bonds and real estate
Derivatives: mainly the small-cap domestic equities
As you are Richard’s supervisor, you notice the correlation on asset class returns on equity and derivatives is 0.95, while the asset class returns on debt have a very low correlation with equity and derivative returns.
The asset class specifications for debt are inappropriate because:
选项：
A. asset classes should be diversifying
B. asset classes should be mutually exclusive
C. asset within an asset class should be relatively homogeneous.
解释：
C is correct.
考点：asset class的分类原则
解析：在debt这个资产类型内部，包含了美国投资级别债券和房地产，但是这两种产品的性质是不相同的，违反了homogeneous这个分类原则。
这个correlation 说的是asset class相互之间的对吧？比如equity和debt之间