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In an economic model, an exogenous variable is one whose measure is determined outside the model and is imposed on the model, and an exogenous change is a change in an exogenous variable. [1]: p. 8 [2]: p. 202 [3]: p. 8 In contrast, an endogenous variable is a variable whose measure is determined by the model. An endogenous change is a change ...
Biobased economy, bioeconomy or biotechonomy is an economic activity involving the use of biotechnology and biomass in the production of goods, services, or energy. The terms are widely used by regional development agencies, national and international organizations, and biotechnology companies.
Biological economics is an interdisciplinary field in which the interaction of human biology and economics is studied. The journal Economics and Human Biology covers the field and has an impact factor of 2.722. [1]
Thermoeconomics is based on the proposition that the role of energy in biological evolution should be defined and understood not through the second law of thermodynamics but in terms of such economic criteria as productivity, efficiency, and especially the costs and benefits (or profitability) of the various mechanisms for capturing and utilizing available energy to build biomass and do work.
To construct an optimality model, the behavior must first be clearly defined. Then, descriptions of how the costs and benefits vary with the way the behavior is performed must be obtained. [1] Examples of benefits and costs include direct fitness measures like offspring produced, change in lifespan, time spent or gained, or energy spent and gained.
Estimating the economic value of biodiversity (and the costs of its continued loss) in agriculture and through the use of wild species for food is both challenging and controversial. Agricultural biodiversity (agrobiodiversity) refers to all the components of biodiversity that are relevant to food and agriculture, and that make up agricultural ...
In life history theory, the cost of reproduction hypothesis is the idea that reproduction is costly in terms of future survival and reproduction. This is mediated by various mechanisms, with the two most prominent being hormonal regulation and differential allocation of internal resources.
Economic growth and the conversion of natural ecosystems to agricultural production are forecasted to continue, but TEEB feels that it is essential to ensure that such development takes proper account of the real value of natural ecosystems. This is central to both economic and environmental management.