Inclusive wealth is the aggregate value of all capital assets in a given region, including human capital, social capital, public capital, and natural capital. [1] Maximizing inclusive wealth is often a goal of sustainable development. [2] The Inclusive Wealth Index is a metric for inclusive wealth within countries: unlike gross domestic product (GDP), the Inclusive Wealth Index "provides a tool for countries to measure whether they are developing in a way that allows future generations to meet their own needs". [3]
The United Nations Environment Programme (UNEP) published reports in 2012, 2014, and 2018 on inclusive wealth. The 2018 "Inclusive Wealth Report" found that, of 140 countries analyzed, inclusive wealth increased by 44% from 1990 to 2014, implying an average annual growth rate of 1.8%. On a per capita basis, 89 of 140 countries had increased inclusive wealth per capita. 96 of 140 countries had increased inclusive wealth per capita when adjusted. [3] Roughly 40% of analyzed countries had stagnant or declining inclusive wealth, sometimes despite increasing GDP. Many countries showed a decline in natural capital during this period, fueling an increase in human capital. [4]
Formation | 2012 |
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Headquarters | United Nations Environment Programme, Nairobi, Kenya |
Parent organization | United Nations Environment Programme |
Website | https://www.unep.org/resources/report/inclusive-wealth-report-2018 |
The Inclusive Wealth Index (IWI) [5] was developed by UNEP [6] in partnership with Kyushu University. The Index calculation is based on estimating stocks of human, natural and produced (manufactured) capital which make up the productive base of an economy. Biennial Inclusive Wealth Reports (IWR) [5] track progress on sustainability across the world for 140 countries. The IWI is UNEP's metric for measuring intergenerational well-being. Implementing the IWI has been undertaken by many individual countries with UNEP support by a scientific panel headed by Sir Partha Dasgupta of Cambridge University.
Inclusive wealth is complementary to Gross Domestic Product (GDP). In a 'stocks and flows' model, capital assets are stocks, and the goods and services provided by the assets are flows (GDP). A tree is a stock; its fruit is a flow, while its leaves provide a continuous flow of services by pulling carbon dioxide from the atmosphere to store as carbon. It is a multi-purpose indicator capable of measuring traditional stocks of wealth along with skill sets, health care, and environmental assets that underlie human progress. [7] The effective management of this capital supports the ultimate purpose of an economy – societal well-being.
Produced capital (also referred to as manufactured capital) includes investment in roads, buildings, machines, equipment, and other physical infrastructure. Human capital comprises knowledge, education, skills, health and aptitude. Natural capital includes forests, fossil fuels, fisheries, agricultural land, sub-soil resources, rivers and estuaries, oceans, the atmosphere and ecosystems, more generally. Social capital includes trust, the strength of community and institutions, and the ability of societies to overcome problems. An economy's institutions and politics determine the social value of its assets because they influence what people are able to enjoy from them. IWI does not directly measure social capital, which is considered to be embedded in other capital types. Not all components of capital that are conceptually components of wealth are currently included in the Inclusive Wealth methodology. This is due to difficulties in measuring certain assets, as well as data availability and comparability constraints.
Source: [5]
The conceptual framework looks at well-being at time t as:
Denoting produced, human, and natural capital as 𝐾, 𝐻, and 𝑁, the change in inclusive wealth 𝑊 is expressed by:
where 𝑝𝐾, 𝑝𝐻 and 𝑝N are the marginal shadow prices of produced, human, and natural capital, respectively. They are formally defined by,
given a forecast of how produced, human, and natural capital, as well as other flow variables, evolve in the economy in question.
Practically, shadow prices act as a weight attached to each capital, resulting in the measure of wealth, or:
In practice, W and IWI can be used interchangeably, although they can differ in that IWI also uses shadow prices on the margin. In addition, the unit of IWI is monetary rather than utility.
This does not affect the sustainability assessment overall.
The components of natural capital include renewable resources (agricultural land, forests, and fisheries) and nonrenewable resources (fossil fuels and minerals).
The inclusion of fossil fuels within an indicator that tracks sustainability may appear counterintuitive because fossil fuels are often considered liabilities or stranded assets. The mechanism assumed in the IWI framework is the business-as-usual scenario of the imperfect economies that form the basis of our societies. The shadow price of any type of natural capital represents its marginal contribution towards social wellbeing. In this context, the potential benefit of fossil fuels for driving investment in other types of capital outweighs the drawbacks of the social costs of carbon.
Non-renewable natural capital resources are oil, coal, natural gas, minerals and metals. To measure a fossil fuel, data measures the stock and is compared to data from other years, in order to develop a time series that reflects accurate flows. The unit shadow price for non-renewables is the price net of extraction cost, also called the rental price. The rental rate of the total price is assumed constant. [8] Ideally, the marginal cost of extraction should be used for the corresponding remaining stock, but this is hard to obtain. The accounting for minerals is similar to that used for fossil fuels. For rental rates, the sectoral rental rates of different mineral industries [8] are used, as well as U.S. Geological Survey data. [9]
Timber stocks included in IWI estimates are those that are commercially available. To calculate the quantity of timber available, the total forest area, excluding cultivated forest[3], is multiplied by the timber density per area and percentage of total volume that is commercially available. The exclusion of cultivated forest from this category is debatable, as it is regarded as contributing to timber and non-timber values. Forest cultivation is categorized as a production activity in the System of National Accounts.
Following the estimation of physical stocks, shadow prices are computed to convert the wealth into monetary terms. The World Bank's approach [10] uses a weighted average price of two commodities for industrial roundwood and fuelwood. Country-specific GDP deflators are used to convert prices from current to constant units, and regional rental rates for timber [11] are applied, which are assumed to be constant over time. To obtain the proxy value for the shadow price of timber, the average price over the study period (1990 to 2014) is taken. Wealth corresponding to timber value is taken as the product of quantity, price and average rental rate over time.
Aside from the provisional ecosystem service of timber production, forests yield many other services. These additional ecosystem services are accounted for in the following manner: Non-cultivated forest area is retrieved from FAO (2015). [12] The fraction of the forest area that contributes to human well-being is assumed to be 10%. [10] The unit benefit of non-timber forest to inter-temporal social well-being is obtained from the Ecosystem Service Valuation Database (ESVD) database. [13] This is expressed as USD/ha/year. Finally, to translate this benefit into capital asset value, we take its net present value, using the discount rate of 5%.
Fishery stocks cannot be estimated based on habitat area, unlike forest or agricultural lands. Marine fishery habitats often cross national borders. Global fish stocks are often assessed using trends in catch or harvest data. [14] With a country's harvest and effort data, along with a catchability coefficient, stocks can be estimated using the Schefer production function. [15] For estimating fishery stocks in countries that lack sufficient effort data, a resource dynamic approach is taken. [16]
Agricultural land is composed of cropland and pastureland. Data from Food and Agriculture Organization (2015) [17] is employed to quantify cropland and pastureland area. Market prices are often unavailable for agricultural land. A shadow price is computed as the net present value of the annual flow of services per hectare, in line with World Bank (2011). [18] IWI assumes the shadow price of pastureland is equal to that of cropland.
Shadow prices are the estimated price of a good or a service that does not have a market price. The calculation of shadow prices is central to the IWI, particularly for natural capital. Various non-market valuation techniques provide estimates for these prices. The use of shadow prices for natural capital is controversial, mainly regarding the knowledge gap surrounding how to represent production functions of life-supporting ecosystems. Nevertheless, shadow prices based on willingness to pay measures are considered the best available approach for estimating their value. [19] [20]
The main components of human capital are health and education, but also parenting, on-the-job training, informal education and migration.
Human health is affected by daily well-being, productivity and lifespans. The latter is computed as a proxy for health-related human capital, largely because the options for quantifying the others are limited. The shadow price of health capital is the value of a statistical life year (VSLY). [21]
IWI methodology focuses on the return on formal education, acknowledging that non-formal education such as early childhood learning and vocational training also contribute to wealth. Using data from Barro and Lee (2013), [22] educational attainment is proxied by the average years of schooling per person. The rate of return on education is assumed to be 8.5%, and then multiplied by the educated population.
Produced capital, also referred to as manufactured capital, includes physical infrastructure, land, facilities of private firms, and dwelling places. IWI uses the perpetual inventory method (PIM), which is a simple summation of gross investment net of depreciation that occurs in each period. [23] [24] [25]
Three adjustments influence wealth and social well-being, but are not covered by the official capital assets: carbon damage, oil capital gains, and total factor productivity.
Carbon damage can be regarded mostly as an exogenous change in social well-being. Calculation involves:
Oil prices are notorious for rapid fluctuations. Oil-rich nations benefit from spiking oil prices. Conversely, rising oil prices may result in reductions in social well-being for oil importing countries. An annual increase of 3% in the price of oil is assumed, corresponding to the annual average oil price increase during 1990–2014, [26] implying that even if no oil is withdrawn, a nation can enjoy 3% growth in wealth.
Total factor productivity (TFP) measures residual contributions to social well-being. [27] IWI includes TFP as an adjustment term. A non-parametric analysis called Malmquist productivity index is employed, which is based on the concept of data envelopment analysis.
IWI was inaugurated in 2012 with the launch of the Inclusive Wealth Report (IWR) at the United Nations Conference on Sustainable Development (Rio+20). IWR 2012 compared the relative change of natural capital against produced capital and human capital. The results showed that changes in natural capital can significantly impact a nation's well-being, and that it is therefore possible to trace changes in components of wealth by country and link these to economic progress. [27] The 2014 and 2018 IWRs expanded scope to cover 140 countries. The main focus of IWR 2014 [28] was to estimate the education component of human capital. In IWR 2018, [5] health was added to human capital, and fisheries were added to natural capital. [28] [7]
Changes in inclusive wealth are calculated using 25 year annual average growth rates. The results show that the growth of inclusive wealth is positive for many countries. Top performers include Republic of Korea, Singapore and Malta among others. However, in many countries, the population is growing more quickly than the inclusive wealth. These places experienced negative per capita wealth growth. Some of the negative per capita growth of wealth occurred in countries that experienced absolute gains in wealth.
IWI looks at each country's assets and assesses the changing health of these assets over 25 years. IWR 2018 shows that 44 out of the 140 countries have suffered a decline in inclusive wealth per capita since 1992, even though GDP per capita increased in all but a handful of them. This statistic shows that their growth is unsustainably depleting resources. [5]
Sustainable Development Goal (SDG) 17 calls for developing "measurements of progress on sustainable development that complement GDP." The inclusive wealth index is one way of measuring progress on the SDGs and positive development trajectories.
Infrastructure and industrialization can occur in line with sustainability considerations. On a global level, produced capital per capita has experienced the largest increase compared to human and natural capital, often at the expense of the latter. The IWI framework provides data and guidance in monitoring the trade-offs without compromising other development goals.
IWI provides governments a new and holistic guide. If inclusive wealth (adjusted for population and wealth distribution) increases as governments try to meet SDGs, the SDGs will be sustainable; if it declines, the SDGs will be unsustainable. It could be that the goals are reached, but are not sustainable because the development paths that nations choose to follow erode their productive capacities.
IWI Ranking | Country | Average growth per capita 1992-2014 |
1 | Republic of Korea | 33.0% |
2 | Singapore | 25.2% |
3 | Malta | 18.9% |
4 | Latvia | 17.9% |
5 | Ireland | 17.1% |
6 | Moldova | 17.0% |
7 | Estonia | 16.0% |
8 | Mauritius | 15.5% |
9 | Lithuania | 15.2% |
10 | Portugal | 13.9% |
Gross domestic product (GDP) is a monetary measure of the market value of all the final goods and services produced and rendered in a specific time period by a country or countries. GDP is often used to measure the economic health of a country or region. Several national and international economic organizations maintain definitions of GDP, such as the OECD and the International Monetary Fund.
Natural resources are resources that are drawn from nature and used with few modifications. This includes the sources of valued characteristics such as commercial and industrial use, aesthetic value, scientific interest, and cultural value. On Earth, it includes sunlight, atmosphere, water, land, all minerals along with all vegetation, and wildlife.
Natural capital is the world's stock of natural resources, which includes geology, soils, air, water and all living organisms. Some natural capital assets provide people with free goods and services, often called ecosystem services. All of these underpin our economy and society, and thus make human life possible.
Environmental economics is a sub-field of economics concerned with environmental issues. It has become a widely studied subject due to growing environmental concerns in the twenty-first century. Environmental economics "undertakes theoretical or empirical studies of the economic effects of national or local environmental policies around the world. ... Particular issues include the costs and benefits of alternative environmental policies to deal with air pollution, water quality, toxic substances, solid waste, and global warming."
Resource depletion is the consumption of a resource faster than it can be replenished. Natural resources are commonly divided between renewable resources and non-renewable resources. The use of either of these forms of resources beyond their rate of replacement is considered to be resource depletion. The value of a resource is a direct result of its availability in nature and the cost of extracting the resource. The more a resource is depleted the more the value of the resource increases. There are several types of resource depletion, including but not limited to: mining for fossil fuels and minerals, deforestation, pollution or contamination of resources, wetland and ecosystem degradation, soil erosion, overconsumption, aquifer depletion, and the excessive or unnecessary use of resources. Resource depletion is most commonly used in reference to farming, fishing, mining, water usage, and the consumption of fossil fuels. Depletion of wildlife populations is called defaunation.
Ecological economics, bioeconomics, ecolonomy, eco-economics, or ecol-econ is both a transdisciplinary and an interdisciplinary field of academic research addressing the interdependence and coevolution of human economies and natural ecosystems, both intertemporally and spatially. By treating the economy as a subsystem of Earth's larger ecosystem, and by emphasizing the preservation of natural capital, the field of ecological economics is differentiated from environmental economics, which is the mainstream economic analysis of the environment. One survey of German economists found that ecological and environmental economics are different schools of economic thought, with ecological economists emphasizing strong sustainability and rejecting the proposition that physical (human-made) capital can substitute for natural capital.
Wealth is the abundance of valuable financial assets or physical possessions which can be converted into a form that can be used for transactions. This includes the core meaning as held in the originating Old English word weal, which is from an Indo-European word stem. The modern concept of wealth is of significance in all areas of economics, and clearly so for growth economics and development economics, yet the meaning of wealth is context-dependent. A person possessing a substantial net worth is known as wealthy. Net worth is defined as the current value of one's assets less liabilities.
The goal of fisheries management is to produce sustainable biological, environmental and socioeconomic benefits from renewable aquatic resources. Wild fisheries are classified as renewable when the organisms of interest produce an annual biological surplus that with judicious management can be harvested without reducing future productivity. Fishery management employs activities that protect fishery resources so sustainable exploitation is possible, drawing on fisheries science and possibly including the precautionary principle.
The green gross domestic product is an index of economic growth with the environmental consequences of that growth factored into a country's conventional GDP. Green GDP monetizes the loss of biodiversity, and accounts for costs caused by climate change. Some environmental experts prefer physical indicators, which may be aggregated to indices such as the "Sustainable Development Index".
National accounts or national account systems (NAS) are the implementation of complete and consistent accounting techniques for measuring the economic activity of a nation. These include detailed underlying measures that rely on double-entry accounting. By design, such accounting makes the totals on both sides of an account equal even though they each measure different characteristics, for example production and the income from it. As a method, the subject is termed national accounting or, more generally, social accounting. Stated otherwise, national accounts as systems may be distinguished from the economic data associated with those systems. While sharing many common principles with business accounting, national accounts are based on economic concepts. One conceptual construct for representing flows of all economic transactions that take place in an economy is a social accounting matrix with accounts in each respective row-column entry.
The Economics of Ecosystems and Biodiversity (TEEB) was a study led by Pavan Sukhdev from 2007 to 2011. It is an international initiative to draw attention to the global economic benefits of biodiversity. Its objective is to highlight the growing cost of biodiversity loss and ecosystem degradation and to draw together expertise from the fields of science, economics and policy to enable practical actions. TEEB aims to assess, communicate and mainstream the urgency of actions through its five deliverables—D0: science and economic foundations, policy costs and costs of inaction, D1: policy opportunities for national and international policy-makers, D2: decision support for local administrators, D3: business risks, opportunities and metrics and D4: citizen and consumer ownership.
Overexploitation, also called overharvesting or ecological overshoot, refers to harvesting a renewable resource to the point of diminishing returns. Continued overexploitation can lead to the destruction of the resource, as it will be unable to replenish. The term applies to natural resources such as water aquifers, grazing pastures and forests, wild medicinal plants, fish stocks and other wildlife.
System of Environmental-Economic Accounting (SEEA) is a framework to compile statistics linking environmental statistics to economic statistics. SEEA is described as a satellite system to the United Nations System of National Accounts (SNA). This means that the definitions, guidelines and practical approaches of the SNA are applied to the SEEA. This system enables environmental statistics to be compared to economic statistics as the system boundaries are the same after some processing of the input statistics. By analysing statistics on the economy and the environment at the same time it is possible to show different patterns of sustainability for production and consumption. It can also show the economic consequences of maintaining a certain environmental standard.
Weak and strong sustainability are terms that have emerged from the field of environmental economics and describe opposing approaches to sustainability, specifically in relation to natural resource management and economic development. Weak sustainability argues that natural and human capital are interchangeable, meaning that the use or loss of natural capital can be considered sustainable if the human capital meets or exceeds the value of the natural capital. It assumes that different types of value can be measured and given value in the same way. Strong sustainability argues that natural capital should be maintained or enhanced independently of human-made capital. It considers that certain natural assets are incommensurable and have critical ecological functions that cannot be substituted by human-made alternatives.
Pavan Sukhdev is an Indian environmental economist whose field of studies include green economy and international finance. He was the Special Adviser and Head of UNEP's Green Economy Initiative, a major UN project suite to demonstrate that greening of economies is not a burden on growth but rather a new engine for growing wealth, increasing decent employment, and reducing persistent poverty. Pavan was also the Study Leader for the ground breaking TEEB study commissioned by G8+5 and hosted by UNEP. Under his leadership, TEEB sized the global problem of biodiversity loss and ecosystem degradation in economic and human welfare terms, and proposed solutions targeted at policy-makers, administrators, businesses and citizens. TEEB presented its widely acclaimed Final Report suite at the UN meeting by Convention on Biological Diversity (CBD) in Nagoya, Japan.
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Shunsuke Managi is the Distinguished Professor of Technology and Policy and the Director of the Urban Institute at Kyushu University, Japan.
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