Exchanges take shape in Macau, Guangzhou to turbocharge southern China’s Greater Bay into Asia’s largest financial market

• Second instalment on Hong Kong’s role in the Greater Bay Area looks at how the city, Macau, Guangzhou and Shenzhen could form Asia’s top financial marketplace
• The up-and-coming Macau exchange is a Nasdaq-like market that helps start-ups raise capital, while Guangzhou’s explores carbon emission futures trading