OECD says gap in living standards is widening between rich and poor regions. - Differences in living standards are growing in several economically advanced countries, within which the poorest regions are struggling to catch up with the rest, according to the OECD Regional Outlook 2014, published by the Organisation for Economic Cooperation and Development. The new research found that half of the 34 OECD countries have seen the income gap between their best-off and worst-off regions widen...