Queensland's fastest-growing regions in the south-east corner are being “unfairly” underfunded at the expense of north Queensland, an economist’s analysis of the state government's 2017-18 budget shows.

Economist Gene Tunny, a former Commonwealth Treasury economist who now runs the Queensland Economy Watch website, examined where the money was being spent in the 2017-18 budget.

Mr Tunny found the government spending difference between north and south-east Queensland to be “excessive”.

“The large per capita funding differences between well-funded regions, such as Fitzroy and inner Brisbane, and relatively poorly funded regions, such as Brisbane’s eastern, southern and western suburbs and Logan-Beaudesert among others, appear excessive to me,” he wrote.