73In order to establish an abuse consisting of a margin squeeze, it is important specifically for the Commission to demonstrate that the spread between the wholesale prices for the services concerned and the retail prices for downstream services to end users was either negative or insufficient to cover the specific costs of those services which the company in a dominant position has to incur in order to supply its own retail services to end users, so that that spread does not allow a competitor which is as efficient as that undertaking to compete for the supply of those services to end users (see, to that effect, judgment in TeliaSonera, paragraph 32).
Source: EUR-Lex, © European Union, 1998-2026. Reuse authorised under Decision 2011/833/EU.