NO.PZ201809170400000104
问题如下：
The Elmer fund’s management strategy is:
选项：
A.active.
B.passive.
C.blended.
解释：
B is correct. The fund is managed assuming that the market is efficient, and investments are selected to mimic an index. Compared with active strategies, passive strategies generally have lower turnover and generate a higher percentage of long-term gains. An index fund that replicates its benchmark can have minimal rebalancing.
老师你好，我想请问一下被动投资不是假设市场是无效的么？这样才不能获得alpha，这里为什么基金经理认为市场是有效的？能否再讲一下主动/被动投资和有效市场假说的联系？谢谢！
