And engineering costs do not include labor? http://www.economicsdiscussion.net/theory-of-cost/engineering-cost-short-run-and-long-run-engineering-costs/5226 ht

And engineering costs do not include labor? http://www.economicsdiscussion.net/theory-of-cost/engineering-cost-short-run-and-long-run-engineering-costs/5226 http://www.economicsdiscussion.net/theory-of-cost/engineerin...