“…Using simulation analysis, they show that even modest correlation between these volatility metrics and the partitioning variable (e.g., the indicator of Chinese RM firms) severely increases the risk of incorrectly rejecting the null hypothesis. In fact, RMs, particularly Chinese RM firms, are found to have higher debt and higher volatility in fundamentals (Adjei et al, 2008;Chu et al, 2014;Gleason et al, 2005;Lee et al, 2013).…”