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Change impact analysis is defined by Bohnner and Arnold [4] as "identifying the potential consequences of a change, or estimating what needs to be modified to accomplish a change", and they focus on IA in terms of scoping changes within the details of a design.
This involves counterfactual analysis, that is, "a comparison between what actually happened and what would have happened in the absence of the intervention." [2] Impact evaluations seek to answer cause-and-effect questions. In other words, they look for the changes in outcome that are directly attributable to a program. [3]
In some cases, impact becomes politicized due to a change in the governing regime between assessment and evaluation, and non-congruence might be amplified for ideological reasons. In other cases, the world is a complex place, and assessment is not a perfect art.
An economic impact analysis only covers specific types of economic activity. Some social impacts that affect a region's quality of life, such as safety and pollution, may be analyzed as part of a social impact assessment, but not an economic impact analysis, even if the economic value of those factors could be quantified. [2]
The Stanford analysis found that achieving a significant impact on a company’s cost of capital through divestment would require an unrealistically high level of participation by socially ...
Social impact assessment (SIA) is a methodology to review the social effects of infrastructure projects and other development interventions. Although SIA is usually applied to planned interventions, the same techniques can be used to evaluate the social impact of unplanned events, for example, disasters, demographic change, and epidemics.
The word significant is crucial here as the definition can vary 'Significant' must be defined; The most frequent method used here is use of the Leopold matrix; The matrix is a tool used in the systematic examination of potential interactions; Example: in a windfarm development a significant impact may be collisions with birds; Mitigation
Impact analysis may refer to: Change impact analysis; Economic impact analysis; Regulatory Impact Analysis; See also. Impact assessment; Impact evaluation