What is Wealth Accounting?

Wealth is what underpins the income that a country generates. It includes produced capital (buildings, the machinery used in factories, infrastructure like highways and ports, etc.), natural capital (including  land, forests, fish, minerals and energy), human capital, and net foreign assets. Wealth accounting is a methodology for measuring these assets
There is some provision for wealth accounting under the System of National Accounts (SNA), which provides an international standard for measuring national income and savings and is followed by all countries. However, relatively few countries currently carry out wealth accounting. This means they have a very incomplete picture of their prospects for future income, just as assessing the value of a business would be incomplete without analyzing its balance sheet.
Truly comprehensive wealth accounting would go beyond the SNA to include broader forms of wealth such as human capital and the benefits flowing from ecosystem services, such as pollination and flood protection from mangroves.

Why is GDP not enough as an indicator?

Countries rely on GDP (gross domestic product) as a measure of economic performance. However, GDP only measures current income and production, telling us nothing about income for the long term, or the assets that underpin income. For example, when a country exploits its minerals, it is actually depleting wealth but that depletion is not captured by GDP. It also does not answer questions like: are income and growth sustainable? Will the same level of income be available for our children?

How can wealth accounting help countries grow sustainably?

Comprehensive wealth accounting can provide an estimate of the total wealth of nations by measuring the value of different components of wealth. Changes in wealth is an indicator to assess if a country is growing its income without depleting its stocks. (See Figure 1 below.)

Figure 1. Total wealth composition

We measure changes in wealth through adjusted net savings (ANS), which  captures the real difference between production and consumption by including depreciation of fixed capital, as well as investment in human capital, depletion of natural resources, and damage from pollution.

How is Wealth Accounting Related to WAVES?

Natural capital is especially important to many developing countries because it forms a large share of their total wealth – 47%  for low income countries. Natural capital accounting (NCA) focuses on this critical component of wealth.

In February 2012, the UN Statistical Commission (UNSC) approved the System of Environmental and Economic Accounts (SEEA) as an international statistical standard, like the SNA. The SEEA provides methodology for compiling accounts for material natural resources like minerals, water, energy and timber, as well as the emission of pollutants like greenhouse gases. It covers asset accounts and flow accounts, both monetary and physical. Methodology for ecosystem accounting, or for regulating services of ecosystems, is still being developed. The adoption of the SEEA is a fundamental leap forward: by providing crucial information to manage natural resources, NCA can be a powerful tool for policy makers grappling with trade-offs in a growing economy.

The latest wealth accounting data show that more efficient, long-term management of natural resources is key to sustainable development while countries build their infrastructure and human capital. The WAVES Partnership is working with ministries of planning, development and finance across the world to integrate natural resources into development planning through NCA.

 Figure 2. Natural capital: Share versus per capita value

World Bank and Wealth Accounting: A Timeline

2011 :

The Changing Wealth of Nations: Measuring Sustainable Development in the New Millennium is published, with detailed estimates of wealth for 1995, 2000, and 2005.

2010 :

The Global Alliance for Wealth Accounting and Ecosystem Services Valuation (WAVES) is launched to help countries build natural capital accounts and ensure that the value of natural assets are included in development policies.

2006 :

Publication of Where is the wealth of nations? Measuring Capital for the 21st Century, which provides the first overview of the total wealth of 120 countries by the year 2000.

2000 :

The results of the adjusted net saving (ANS) indicator for more than 200 countries are first published in the Little Green Data Book.

1999 :

Results for the indicator Annual Net Savings (ANS), also called real savings, are first published. ANS is defined as gross national savings adjusted for the annual change in the volume of all forms of capital. It is a complement to total wealth.

1990 :

The World Bank begins building a global database on ways to measure total wealth at the national level.