The Spirit Level may be the most significant book I have read in 10 years.
Many people, myself included, hold to the ideological belief that social justice is a prerequisite for a truly democratic, peaceful, sustainable society. What Richard Wilkinson and Kate Pickett provide in The Spirit Level is the evidence to back up the belief.
When we look at the wealthiest nations, despite the inordinate wealth we find many health and social problems. While it is clear that the prevalence of these problems is hugely variable from one country to another, the evidence shows quite clearly that it is not the level of income in the different countries that is correlated with health and social problems.
Wilkinson and Pickett show – with detailed consideration of a mass of data covering 23 wealthy countries, ie those with a national income above US$25,000 per capita – that the prevalence of health and social problems is greater in countries with higher income inequality.