Aramco may be big, but fawning to Saudis diminishes London

Giving the state-owned oil firm a premium stock market listing would make a mockery of all the investor protection such a category entails There are two ways to run a stock market. The first is to do little more than provide a platform for buyers and sellers to meet. In this lightly policed model, anyone can play. Buyers must look after their own interests and no one can complain too much if the stocks turn out to be duds. The second approach is more demanding. Companies wishing to join such a m...