Speaking on private Real FM radio station, Karatzaferis said that if 3-4 political leaders, representing all the trends in the Greek parliament, appeared together in Europe "to press for the Greek positions, they would take us seriously in consideration".
At the least, he added, "we must stop bickering amongst ourselves".
Karatzaferis said that he was not opposed to the prospect of early general elections if agreement could not be reached among the political forces, opining that in such an eventuality his LAOS party would double its strength, while he also criticised prime minister and ruling PASOK leader George Papandreou and main opposition New Democracy (ND) leader Antonis Samaras of "trying to beat each other with just half a percentage point".
"We need to all pull the cart together. This childishness, hysteria, represents no one," he stressed.