The European Commission (Commission) has opened parallel anti-trust investigations, into the operation of certain members of two airline alliances (known respectively as the "Star" and "oneworld" alliances) which operate transatlantic routes. The relevant members of the Star alliance are Air Canada, Lufthansa, United and (a prospective member) Continental. The members of the oneworld alliance are American Airlines, British Airways and Iberia. Key to the investigation is the extent to which the airline co-operation restricts competition (contrary to Article 81(1) EC) on transatlantic routes. In particular, the Commission is examining the extent to which airlines jointly manage schedules, capacity, pricing and revenue-sharing. The inquiry is at an early stage and it is expected to be some months before the Commission takes a view on whether there has been a breach of competition law.