Loading the player... Covariance is a measure of the degree to which returns on two risky assets move in tandem. A positive covariance means that asset returns move together, while a negative covariance means returns move inversely.
1. Rotterdam (the Netherlands) This Dutch harbor was the largest in the world, until Shanghai and Singapore grew even larger in 1986. This satellite photo gives an indication of the size of the Port of Rotterdam. (Image via Mannlines) About an hour and a half to the south of Rotterdam is Antwerp, the largest port in Belgium.
What is the largest airport in size in the world? The largest airport in the world, taken literally by size, is the King Khalid International Airport in Riyadh, Saudi Arabia. At over eighty-one square miles, this airport is lâ¦arger than most cities.