李同学2019-02-07 17:20:16

Which of the following characteristics of an investment study most likely indicates time-period bias? A The study is based on a short time-series. B Information not available on the test date is used. C A structural change occurred prior to the start of the study’s time series. 查看解析 上一题 下一题 正确答案A 您的答案A本题平均正确率：65% Biases难度：一般 推荐：      答案解析 A short time series is likely to give period-specific results that may not reflect a longer time period. 请问：C选项的如果不是发生在之前 结构性变化和时间性偏差有和关联，可否举例解释一下，便于理解哈？