Economic growth can be defined as the increase or improvement in the inflation-adjusted market value of the goods and services produced by an economy in a financial year. Statisticians conventionally measure such growth as the percent rate of increase in the real and nominal gross domestic product (GDP).
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.
Energy economics is a broad scientific subject area which includes topics related to supply and use of energy in societies. Considering the cost of energy services and associated value gives economic meaning to the efficiency at which energy can be produced. Energy services can be defined as functions that generate and provide energy to the “desired end services or states”. The efficiency of energy services is dependent on the engineered technology used to produce and supply energy. The goal is to minimise energy input required to produce the energy service, such as lighting (lumens), heating (temperature) and fuel. The main sectors considered in energy economics are transportation and building, although it is relevant to a broad scale of human activities, including households and businesses at a microeconomic level and resource management and environmental impacts at a macroeconomic level.
Overconsumption describes a situation where a consumer overuses their available goods and services to where they can't, or don't want to, replenish or reuse them. In microeconomics, this may be described as the point where the marginal cost of a consumer is greater than their marginal utility. The term overconsumption is quite controversial in use and does not necessarily have a single unifying definition. When used to refer to natural resources to the point where the environment is negatively affected, is it synonymous with the term overexploitation. However, when used in the broader economic sense, overconsumption can refer to all types of goods and services, including manmade ones, e.g. "the overconsumption of alcohol can lead to alcohol poisoning". Overconsumption is driven by several factors of the current global economy, including forces like consumerism, planned obsolescence, economic materialism, and other unsustainable business models and can be contrasted with sustainable consumption.
Ecological modernization is a school of thought that argues that both the state and the market can work together to protect the environment. It has gained increasing attention among scholars and policymakers in the last several decades internationally. It is an analytical approach as well as a policy strategy and environmental discourse.
Genuine progress indicator (GPI) is a metric that has been suggested to replace, or supplement, gross domestic product (GDP). The GPI is designed to take fuller account of the well-being of a nation, only a part of which pertains to the size of the nation's economy, by incorporating environmental and social factors which are not measured by GDP. For instance, some models of GPI decrease in value when the poverty rate increases. The GPI separates the concept of societal progress from economic growth.
In economics, the Jevons paradox occurs when technological progress or government policy increases the efficiency with which a resource is used, but the falling cost of use induces increases in demand enough that resource use is increased, rather than reduced. Governments typically assume that efficiency gains will lower resource consumption, ignoring the possibility of the paradox arising.
A green economy is an economy that aims at reducing environmental risks and ecological scarcities, and that aims for sustainable development without degrading the environment. It is closely related with ecological economics, but has a more politically applied focus. The 2011 UNEP Green Economy Report argues "that to be green, an economy must not only be efficient, but also fair. Fairness implies recognizing global and country level equity dimensions, particularly in assuring a Just Transition to an economy that is low-carbon, resource efficient, and socially inclusive."
Herman Edward Daly was an American ecological and Georgist economist and professor at the School of Public Policy of University of Maryland, College Park in the United States, best known for his time as a senior economist at the World Bank from 1988 to 1994. In 1996, he was awarded the Right Livelihood Award for "defining a path of ecological economics that integrates the key elements of ethics, quality of life, environment and community."
A steady-state economy is an economy made up of a constant stock of physical wealth (capital) and a constant population size. In effect, such an economy does not grow in the course of time. The term usually refers to the national economy of a particular country, but it is also applicable to the economic system of a city, a region, or the entire world. Early in the history of economic thought, classical economist Adam Smith of the 18th century developed the concept of a stationary state of an economy: Smith believed that any national economy in the world would sooner or later settle in a final state of stationarity.
Nicholas Georgescu-Roegen was a Romanian mathematician, statistician and economist. He is best known today for his 1971 magnum opus The Entropy Law and the Economic Process, in which he argued that all natural resources are irreversibly degraded when put to use in economic activity. A progenitor and a paradigm founder in economics, Georgescu-Roegen's work was decisive for the establishing of ecological economics as an independent academic sub-discipline in economics.
In conservation and energy economics, the rebound effect is the reduction in expected gains from new technologies that increase the efficiency of resource use, because of behavioral or other systemic responses. These responses diminish the beneficial effects of the new technology or other measures taken. A definition of the rebound effect is provided by Thiesen et al. (2008) as, “the rebound effect deals with the fact that improvements in efficiency often lead to cost reductions that provide the possibility to buy more of the improved product or other products or services.” A classic example from this perspective is a driver who substitutes a vehicle with a fuel-efficient version, only to reap the benefits of its lower operating expenses to commute longer and more frequently."
Degrowth or post-growth economics is an academic and social movement critical of the concept of growth in gross domestic product as a measure of human and economic development. Degrowth theory is based on ideas and research from a multitude of disciplines such as economics, economic anthropology, ecological economics, environmental sciences and development studies. It argues that the unitary focus of modern capitalism on growth, in terms of monetary value of aggregate goods and services, causes widespread ecological damage and is not necessary for the further increase of human living standards. Degrowth theory has been met with both academic acclaim and considerable criticism.
Regenerative economics is an economic system that works to regenerate capital assets. A capital asset is an asset that provides goods and/or services that are required for, or contribute to, our well-being. In standard economic theory, one can either “regenerate” one's capital assets or consume them until the point where the asset cannot produce a viable stream of goods and/or services. What sets regenerative economics apart from standard economic theory is that it takes into account -and gives hard economic value to - the principal or original capital assets: the earth and the sun. Most of regenerative economics focuses on the earth and the goods and services it supplies.
In economic and environmental fields, decoupling refers to an economy that would be able to grow without corresponding increases in environmental pressure. In many economies, increasing production (GDP) raises pressure on the environment. An economy that would be able to sustain economic growth while reducing the amount of resources such as water or fossil fuels used and delink environmental deterioration at the same time would be said to be decoupled. Environmental pressure is often measured using emissions of pollutants, and decoupling is often measured by the emission intensity of economic output. However, it is arguable that emission intensity does not adequately reflect the exponential impact on the instability of ecosystems when climate tipping points are passed. During the 2023 World Economic Forum Johan Rockstrom explained that the exponential domino effect has now commenced.
Post-growth is a stance on economic growth concerning the limits-to-growth dilemma — recognition that, on a planet of finite material resources, extractive economies and populations cannot grow infinitely. The term "post-growth" acknowledges that economic growth can generate beneficial effects up to a point, but beyond that point it is necessary to look for other indicators and techniques to increase human wellbeing.
Dematerialization is a term in economics and the social sciences that describes the process of making more goods with less material. The term itself possesses multi-accentuality, which allows it to be diversely explained by different fields of social science, such as Mainstream economics, which puts focus on the aspects of technological evolution and market demand shifts, and Ecological economics, which emphasizes the effect of dematerialization on the natural environment.
Ecomodernism is an environmental philosophy which argues that technological development can protect nature and improve human wellbeing through eco-economic decoupling, i.e., by separating economic growth from environmental impacts.
Giorgos Kallis is an ecological economist from Greece. He is an ICREA Research Professor at ICTA - Universitat Autònoma de Barcelona, where he teaches political ecology. He is one of the principal advocates of the theory of degrowth.
Growth imperative is a term in economic theory regarding a possible necessity of economic growth. On the micro level, it describes mechanisms that force firms or consumers (households) to increase revenues or consumption to not endanger their income. On the macro level, a political growth imperative exists if economic growth is necessary to avoid economic and social instability or to retain democratic legitimacy, so that other political goals such as climate change mitigation or a reduction of inequality are subordinated to growth policies.
