Here is a superb five minute news video from the Financial Times that could serve as an excellent introduction to both micro and macroeconomics. Helped by EU structural funds, Portugal has invested huge sums in their motorway network; indeed Portugal has four times more motorway road space per head of population than the UK. However beset by persistent recession and the lagged effects of high fuel prices, many of these gleaming new roads are virtually empty - a waste a scarce economic resources. Road traffic has fallen more in Portugal than in any other European country in the past 15 months. Peter Wise, Lisbon Correspondent, reports on why empty roads provide a revealing insight into the depth of the country's recession.