Without such a coordinated rate policy, economists doubt that the dollar's rise can be contained.

But economists doubt that the change will make currency markets harder to manage.

Some economists doubt that households are too deeply in debt to spend the nation out of a recession.

Many economists doubt that the tax relief can be enacted quickly enough to make much difference to the economy this year.

Other economists doubt that a correlation between population reduction and economic growth exists.

But many economists doubt that Japan can export its way back to economic health.

But few economists doubt that technology has played a big role.

But some economists doubt that such a high percentage will actually occur.

But other economists doubt that the growth rate has dropped that far.

But many economists doubt that peace by springtime is sufficient in itself to end the recession.