He said the demand by the organised labour was in view of the economic recession, noting that N18, 000 was not an amount that any worker can survive on.
Wabba said increment was the strategy the United States used to address the recession.
He argued that the economy cannot return to its former state unless the citizens have purchasing power.
“The state of the country’s economy requires that we increase the minimum wage. We need to empower the people to buy and sell. If the economy is at standstill and people cannot buy, the economy will not grow.
“It is the workers’ money that keeps the economy growing. It is not the fund disbursed for big contracts that are kept in different accounts that keep the country economy growing.
“That was the logic that helped the United States to revive their economy,” he added.
Meanwhile, President Buhari has urged Nigerians to always speak positively about the country in spite of the current economic recession.