David McMullen is an Australian socialist economist who contends that global economic development in the 21st century will provide the necessary material basis for a classless post-capitalist society.
He expects affluence rather than poverty to become the rule by the end of this period given that it would not require unusually high growth rates, and resource and environmental constraints will be overcome by advances in technology.
With a high level of economic development, equality would no longer entail sharing poverty and lengthy toil, the main reason for classes and inequality in the past.
McMullen expects that most regions will undergo considerable economic growth while more and more countries, and an increasing proportion of the world's population, will join the developed camp.
The more developed countries are already entering the realm of the possible as average incomes approach a level that provides considerable material comfort and most work takes on a more congenial nature.
McMullen also defends the social form of ownership required by a classless post-capitalist society from claims that it would be unable to effectively use a price system based on decentralized bids and offers.