Anchor: But substantial parts of the world economy are depressed--and for one reason or another apparently cannot or will not use macroeconomic policy to restore full employment.
Entailed: I'm not sure if they don't want to or simply cannot use macroeconomic policy to restore full employment. 
Contradiction: Not even macroeconomic policy will help to restore full employment to some parts of the world economy. 
Contradiction: We were never a part of a motorcycle group at any point stage in our lives.
Contradiction: the boy was having fun at the lake.
Contradiction: The picture is just as bleak as it seems.
Contradiction: The man is playing an instrument.