OECD GDP growth slows in first quarter of 2015. - Growth of real gross domestic product (GDP) in the OECD area slowed to 0.3% in the first quarter of 2015, down from 0.5% in the fourth quarter of 2014, according to provisional OECD estimates published on Tuesday 26 May. Of the major seven economies, growth slowed most significantly in the United States (to 0.1%) and in Germany (to 0.3%), down from 0.5% and 0.7% respectively in the fourth quarter of 2014. Growth also decelerated in the United...