Abu Dhabi is fundamentally wealthier than Dubai on a macro-economic and sovereign level, primarily because Abu Dhabi possesses the vast majority of the United Arab Emirates' massive oil and natural gas reserves. While Dubai has successfully diversified its economy into trade, real estate, tourism, and financial services, Abu Dhabi’s immense sovereign wealth funds—such as the Abu Dhabi Investment Authority—control multi-trillion-dollar assets, cementing its status as the financial powerhouse of the federation.