Tony Abbott has ducked a challenge to debate Kevin Rudd on the economy.

Asked on Network Ten whether he would accept the prime minister's offer to debate him next week at the National Press Club, Mr Abbott said it was more important that Mr Rudd name the election date.

On message: Opposition leader Tony Abbott at the Victorian Liberal Party's campaign launch in Melbourne on Saturday. Credit:Joe Armao

Asked whether he was too scared to debate Mr Rudd he said he debated Mr Rudd every day.

“I mean, Mr Rudd can recall Parliament if he wishes to have a debate. As soon as he names the election date, then the election debate will be in full swing,” he said.