This report presents a new index, which could become an alternative to gross domestic product (GDP) and the Human Development Index as a means of assessing a country's economic development. The Inclusive Wealth Index (IWI) measures nations' wealth by taking into account natural resources and ecological conditions, and a long-term view on wellbeing and sustainability.

The IWI was applied to 20 countries — representing over half the world's population and three quarters of global GDP — revealing changes in inclusive wealth between 1990 and 2008. The report found that an accurate representation of development depends on accounting for factors such as population change, the effect of global variables, and the price of natural or social capital. It recommends that governments integrate the IWI into planning, development and economic policies; protect their natural capital; and establish research initiatives to help evaluate natural capital components.

The report will be published every two years, offering policymakers practical frameworks and encouraging more holistic approaches to economic development assessments.