The star turn at the World Economic Forum in Davos on Wednesday belongs to Dmitry Medvedev, the Russian prime minister, who will once again try to convince sceptical business people why they should invest in his country, writes Stefan Wagstyl.

It will be the third such appearance by a Russian leader in Davos in just five years. There’s not much chance that the foreign investors’ views will change that much – but Medvedev is likely to have interesting things to say about Russia’s $10bn privatisation programme. Meanwhile, here, below the break, is a guest post from his WEF hosts, spelling out Russia’s economic challenges. Read more