Four new nationwide entrants were introduced into the Korean mobile telephone industry provoking intense competition among the five carriers by late 1997. Some assert that there is excessive competition and industry restructuring is needed. In this paper, we analyze the profitability of mobile...

The purpose of this paper is to analyze strategic behavior of vertically integrated firms when there is downstream entry, taking into account the balance between "competition in the market" and "competition for the market." This analysis can serve to explain diverse distributional structures,...