After decades of de-prioritizing shareholders' economic interests and low corporate profitability, Japan introduced the JPX-Nikkei400 in 2014. The index highlighted the country's “best-run" companies by annually selecting the 400 most profitable of its large and liquid firms. We find that...

We examine comovement in two famous Japanese stock indexes (the Nikkei 225 and the MSCI Japan) by employing the Barberis et al. (2005) methodology. First, we compare the equal-weighted Nikkei 225 with the value-weighted Nikkei 225 and find that the index fund trading effect is strong in the...