As more markets become liberalized, operators are now concerned about increasing their investments on network capacity, hoping to benefit from the economies of scale which in turn, may help lower operating costs. Unfortunately, this may not be so. These result in more volatile yields and unpredictable cashflow. Lee said there are several factors that contribute to higher risks. First is the fickle tastes of consumers, which makes it difficult to predict demand.
Operators upgrade their network every two years in order to remain competitive.