According to the size effect, small cap securities generally generate greater returns than those of large cap securities. Recent studies have however suggested that for certain periods, size cannot be considered as a relevant explanatory variable, and therefore as an anomaly. Our study, based on...

As the urbanization rate in the world has increased rapidly, the housing vacancy problem has become serious and attracting more attention. Calculating and analyzing vacant housing will help reduce the wasteful use of resources. This paper measures the housing vacancy rate and housing vacancy...

Polyvinyl alcohol (PVA), a water-soluble synthetic polymer, is one of the most widely distributed exotic particles in nature. It can cause serious environmental pollution but is often overlooked due to inherent invisibility. To achieve efficient degradation of polyvinyl alcohol (PVA) in...