Candidate of the Partido de la Social Democracia Brasilena (PSDB) Aecio Neves during an election campaign rally in Rio de Janeiro. Photograph: EPA/Antonio Lacerda

The increasing prospect of regime change in Brazil is making Petroleo Brasileiro the world’s best major oil stock. It’s also opening the door for fore(...)

“‘Your email must have got caught in the spam filter’ is a handy white lie that I have often used to get me out of scrapes, but as filters go on getting better its value is diminishing.” Photograph: Getty Images

Last week I received an automatic reply from a man I had tried to contact saying he was “away from the office with limited access to email”. I (...)

 Microsoft’s deal to acquire Nokia’s mobile handset business  is likely to go down as a major turning point in the contemporary technology business

Nokia shares soared 40 per cent last week following the sale of its mobile business to Microsoft, and have more than tripled since 2012’s 17-year low,(...)