Difference between revisions of "Environmental Impact"
From Open Risk Manual
Wiki admin (talk | contribs) |
Wiki admin (talk | contribs) |
||
Line 27: | Line 27: | ||
== Further Resources == | == Further Resources == | ||
− | * [https://www.openriskacademy.com/ | + | * [https://www.openriskacademy.com/course/view.php?id=70 Crash Course on Input-Output Model Mathematics] |
+ | * [https://www.openriskacademy.com/course/view.php?id=64 Introduction to Input-Output Models using Python] | ||
== References == | == References == |
Revision as of 17:24, 16 November 2023
Definition
Environmental Impact (or Environmental Stressor) in the context of an Input-Output Model denotes an extension of the basic IO model via a system of satellite accounts that provides insights into the environmental footprint of economic activities.
Approach
Each MRIO's environmental CBA result can be understood simplistically as a product of three variables:
- a flow matrix Z describing the economic structure
- an environmental stressors matrix (or ‘satellite account’) F describing the per-sector direct environmental impacts of production
- a consumption bundle Y describing the composition of final consumption.
The total CBA footprint C is a function of these three variables: .
In addition to the output effects, implications can be derived for the value-added components and the satellite systems. Various production-induced effects can be calculated by multiplying with the coefficients s
Formula
where:
- is a vector of specific satellite accounts
- is a vector of coefficients for satellites.