This article refers to:
‘Implications of middle-school behavior problems for high school graduation and employment outcomes of young adults: estimation of a recursive model’, by Mustafa C. Karakus, David S. Salkever, Eric P. Slade, Nicholas Ialongo and Elizabeth Stuart, Education Economics, http://www.tandfonline.com/doi/full/10.1080/09645292.2010.545518#.Us5z4LSsxK0, published online 18 April 2011.
This article has already been published in Education Economics, volume 20, issue 1, 2012 at http://www.tandfonline.com/doi/full/10.1080/09645292.2010.511816#.Us50ZrSsxK0.
The duplicate version that is not yet published in an issue was published in error and is now retracted.