Talk:Cost–benefit analysis/Archives/2020

External links modified
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I have just modified one external link on Cost–benefit analysis. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:
 * Added tag to http://www.chicagoasa.org/downloads/CostBenefitConference2006/benefit%20cost%20history.pdf
 * Added archive https://web.archive.org/web/20100609215810/http://evans.washington.edu/research/centers/benefit-cost-analysis to http://evans.washington.edu/research/centers/benefit-cost-analysis

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Cheers.— InternetArchiveBot  (Report bug) 12:39, 10 December 2017 (UTC)