This paper attempts to analyze the competitive implications of horizontal mergers that happened in the Korean mobile telecommunications market. A big increase in the concentration index after the mergers and acquisitions is often interpreted as evidence that competition in the Korean mobile...

It has been incessantly argued that the level of mobile charges and the resulting portion of communication expenditure over household expenditure are too high, which implies that despite the growth of the mobile market, the performance of competition is problematic and some works for...