Star Alliance, oneworld and SkyTeam getting younger by the day

This week, the Star Alliance and oneworld respectively announced that Greece's Aegean Airlines and Russia's S7 would join their groupings. And, last month, SkyTeam revealed that Vietnam Airlines would make preparations to join the group next year. As the global alliances expand, they are seen to offer attractive revenue generation and cost reduction benefits for carriers, key reasons why they continue to attract new members, particularly amid the current downturn (see table of alliance members below).