Q. I need to find Economic Key Indicators, where do I start?

Key data such as Gross Domestic Product (GDP), Retail Prices index (RPI) and employment rate are usually published on the national government statistics web site; for example the United Kingdom Office for National Statistics or the Spanish Instituto National de Estadística.

To compare a range data from a number of countries you can use Passport GMID, or for more complex data analysis try the UK Data Service (UKDS).