The changing relationship between market share and EBITDA margin

The relationship between EBITDA margin and national market share has historically been used to demonstrate that clear economies of scale exist in cellular. In the most mature markets (those passing through 100% penetration), this relationship appears to be changing so that the smaller operators are able to run on metrics closer to their larger peers. It is too early to draw strong conclusions on this, but it looks as if the nature of economies of scale is changing and there may be difficulty in realising all the economies of scale that exist.