The government and the ruling coalition failed to settle the details of an emergency economic package Wednesday, remaining divided over how soon to set up a controversial share-purchasing body.

The two sides will try to finalize the package Friday, Taro Aso, state minister in charge of economic and fiscal policy, told a news conference.

In a closely watched meeting Wednesday, however, policymakers from the government and the three ruling parties -- the Liberal Democratic Party, New Komeito and the New Conservative Party -- managed to agree on the need for a basic framework for the stock-buying institution, he said.