The article discusses how investors can measure the risk of their investment portfolios using a method called Conditional Value at Risk (CVaR) with the help of a copula. The researchers found that using CVaR based on a copula provides a more accurate measure of risk for portfolios in the tourism and hospitality sector compared to traditional methods. They also discovered that portfolios with small market capitalization tend to have slightly higher levels of risk than those with large market capitalization. This suggests that a conservative investment strategy may be more suitable for managing portfolios in this sector.