“…But what's interesting in Table 2 is the higher unconditional correlation of some sectors such as basic materials, financial institution, and property and real estate. According to Kim [11] referred to by Piumsombun [21], Hwang and Sitorus [4], and Chen et al [6], the cause of the high correlation of the three sectors is the specification of the EW-LOC, VW-LOC, EW-USD, and VW-USD, as follows: According to Menchero and Morozov [7], market capitalization of the three sectors also contributed to the high correlation in addition to the number of industry members in GICS. Referring to Table 2, the practical implication is that global investors can choose the basic material industry (code 15) and industrial goods (code 20) because both have very low standard deviation values among other industries.…”