The economy of Sydney is notable for its importance in the areas of trading, manufacturing, finance, education, and distribution in Australia. Sydney has the largest economy in Australia.[citation needed]
Sydney's CBD is the largest in Australia and also has plenty of surrounding commercial areas which are considered part of Sydney. A notable one is Parramatta, which is bigger than some state capitals.[citation needed][relevant?]
Sydney city extends over the harbour bridge, forming North Sydney, a continuation of the CBD. North Sydney has a large economy; however it tends to have a high vacancy rate. Just a few kilometres north of Sydney's city centre, is Sydney's fourth largest commercial area, Chatswood. Chatswood's main economy is retail and is home to many highrise buildings, with its own recognisable skyline. 20th Century Fox has large Sydney studios.[relevant?]