Proposed card check legislation, also known as the Employee Free Choice Act, is one of the main concerns of business groups this year. Now the Law and Economics Consulting Group (LECG) has a report out concluding that if passed, the act would increase union membership, but it would also increase unemployment due to higher wage and benefit costs. The author is Anne Layne-Farrar. You can read the abstract and download a PDF of the full report here. (The AFL-CIO point of view on the act is here.)