Conclusion
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Tisdell (1991) points out that 'economic values can only be a partial guide to social decision-making'. Thus BCA should be only part of the decision making process. Factors that should also be considered, including some already mentioned, are:

who does the project benefit?

how long until the project delivers returns and for how long?

does the project provide a short- or long-term solution to the problem?

has a project been discriminated against just because the benefits are in the future (i.e. intergenerational concern)?

has the social equity question (i.e. intergenerational concern) been addressed?

is it a vote winning or vote losing strategy (i.e. is the policy politically acceptable)?

are there direct financial returns to the investment body?

does the project make good business sense (i.e. accountability)?

does society consider that this pest needs to be controlled?

are necessary resources (financial, structural, political) available?

how easy will it be to implement the output of the project?

what is the probability of success of the project?

Provided that BCA is applied competently and impartially, results of BCA are a useful component in the decision making process.

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David Adamson