Gross Domestic Product is a measure of the total value of all goods and services produced by a particular country or region. In the UK this is release by the Office for National Statistics. In the Eurozone it is released by Eurostat. In the US the figure is released by the US Bureau of Economic Analysis. GDP is considered a broad measure of that country’s or region’s economic activity and health. Usually, a rising trend has a positive effect on currency and equity markets, while a falling trend is seen as negative.