Teacher placement, mobility, and occupational choices after teaching, by Li Feng, Education Economics, http://www.tandfonline.com/doi/full/10.1080/09645292.2010.545523, published online 18 April 2011.
This article has already been published in Education Economics at: http://www.tandfonline.com/doi/full/10.1080/09645292.2010.511841. The later duplicate version was published in error and is now retracted.