Martin Gilbert: The drivers powering Aberdeen's merger with Standard Life

It is two years since changes to the pensions system allowed investors to withdraw money from their pension pot from the age of 55.  Despite what was said at the time, the roads are not gridlocked with Lamborghinis. Fears that many would withdraw huge sums of cash from their retirement savings to spend on home improvements, luxury holidays and flash cars have proved unfounded.  For one thing, most 55-year-olds, do not have the assets to retire - especially given more and more people are living well into their 80s and 90s.  Indeed, so many are reaching 100 that it now takes a tea...