Hanoi, Oct. 4 -- Hanoi topped the 2026 Provincial Innovation Index (PII), retaining the leading position for the fourth consecutive year, according to results announced by the Ministry of Science and Technology at the 2026 National Innovation Day in Hanoi on October 4. The PII is designed to provide data and evidence to help localities formulate and implement measures to improve innovation performance. The top 10 localities in the 2026 rankings are Hanoi, Ho Chi Minh City, Hai Phong, Quang Ninh, Bac Ninh, Hue, Da Nang, Thai Nguyen, Tay Ninh and Hung Yen. The list comprises seven centrally governed cities, six northern localities, two in the central region and two in the south. Hanoi scored 63.80 points, while Cao Bang province ranked 34th...