What are the innovative ideas presented by Paul Krugman in his book about the economics of universal healthcare, tax cuts, social security and social inequality?

'Arguing with Zombies: Economics, Politics, and the Fight for a Better Future' by Paul Krugman discusses the relevance of its themes to contemporary issues and debates such as social security and social inequality by debunking the economic myths that often cloud these discussions. The book argues against the privatization of social security, stating that it hurts everyone and is based on the false premise of a social security crisis. It emphasizes that real seriousness in policy making should be based on what works and what doesn't, and according to Krugman, social security works well while privatized security works very poorly.

Zombie ideas" is a term used by Paul Krugman in his book "Arguing with Zombies: Economics, Politics, and the Fight for a Better Future". These are ideas that, despite being debunked with substantial evidence, continue to persist in political and economic discourse. They are called "zombie ideas" because they refuse to die. An example of a "zombie idea" could be the notion that privatizing social security is beneficial, despite evidence to the contrary.