We further explore a new volatility explanation for the permanent price effect of index additions, using a sample of changes in the Nikkei 225. Additions to the index elicit significant price hikes, which tend to be permanent despite temporary price reversals. Meanwhile, investor awareness and...

The mathematics behind many psychometric measures is similar to the mathematics in portfolio theory. Faculty often build exams based on judgment and experience and only use psychometric tools after an exam is administered. An obvious question is, can portfolio optimization models be used to...