NO.PZ2020021002000100
问题如下：
If fund A is mean-variance inefficient in relation to fund B, then fund B is expected to outperform fund A according to SPI
选项：
A.True
False
解释：
True
这道题不是很看的明白题目的意思，及从题干中得到的信息及结论，请老师解释~
NO.PZ2020021002000100问题如下If funA is mean-varianinefficient in relation to funthen funB is expecteto outperform funA accorng to SPIA.True B.False True 中文解析因为funA不efficient，所以它相对funB在CML线以下，也就意味着从rf发出的斜线斜率比B低，所以A的SPI低，选1、mean-varianefficient是啥意思？2、SPI是啥意思？
请问老师这题怎么理解，一下子卡壳了。。。 If funA is mean-variance inefficient in relation to funthen funB is expecteto outperform funA accorng to SPI True
