On the one hand, many were in favor of the feasibility and stability of the reforms while, on the other hand, some authors argued that the reforms would reduce the diversity of operations and increase the risks of associated failure. For example, Chow and Surti (2011) shed light on the plausible feasibility of the ring-fencing technique in terms of managing contagion risks. In the same regard, Montanaro and Tonveronachi (2011) stated that a one-size-fits-all approach may not be able to produce effective results and, consequently, different country-specific implications may worsen the challenges. However, with the discussed arguments it is accepted that universal models with relatively low investment shares are more stable in times of crisis, which is supported by a lot of empirical evidence. Some of the key empirical studies that favor a high/low investment structure are discussed