2015 - da Silva Filho, Tito N�cias Teixeira ; Marcos Rodrigues Figueiredo, Francisco ed
show high persistence, and one certainly does not want to disregard persistent price changes. The non-equivalence between … volatility and persistence. The evidence shows that such measures far outperform those based on either volatility or persistence … typically achieved by either excluding or downplaying the importance of the most volatile items. However, some of those items …