Jeremy Grantham says that falling oil prices shouldn’t have been such a surprise, calling it his major regret for 2014 It may be easy to understand market reactions in retrospect, but when it comes to the oil price collapse GMO co-founder Jeremy Grantham thinks we should all be embarrassed that we didn’t see this one coming – or at least notice that it was possible. “The month-to-month gains in output from fracking could be studied. Yearly productivity increases per well were substantial… Demand was also reasonably predictable, coming in steadily a little less than earlier expected, but not much less,”…