"Privilege of course means giving few an advantage over the many. That's why it's tax cuts for the rich and benefit cuts for the poor We don't want an extension of privilege, we want an extension of fairness and justice.
"We have an economy that's in crisis and what's George Osborne's priority? To try and entice workers to sell their employment rights for a few company shares and a tax bribe."
Speaking in George Square, Mr Smith said the priority should be fair taxation and a living wage, investment in quality jobs, strong trade unions and employment rights.
Protester Mel Kelly, 47, from Irvine, said: "The rich are getting prosperity and we're getting austerity. We all contribute, we all pay 50% of our wages or more in tax, yet the money is going to the banks instead of to the people and the services. We don't pay taxes to bail out banks, we pay tax for the sick, the elderly, the homeless."
Strathclyde Police said the demonstration went off with no incidents.