 The three Tōkai prefectures centered on Nagoya (Aichi, Gifu, and Mie) have particularly strong economic ties, and the parts of these prefectures that are closest to the city comprise the Chūkyō Metropolitan Area.This area boasts the third strongest economy in Japan and this influence can sometimes extend into the more remote parts of these prefectures that are farther away from Nagoya.Thus, these three prefectures are sometimes called the "Chūkyō region" in a business sense.