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Table representation of search results timeline featuring number of search results per year.

Year Number of Results
2007 1
2008 2
2009 1
2010 8
2012 1
2022 0
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13 results
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Page 1
Schools, Skills, and Synapses.
Heckman JJ. Heckman JJ. Econ Inq. 2008 Jun;46(3):289. doi: 10.1111/j.1465-7295.2008.00163.x. Econ Inq. 2008. PMID: 20119503 Free PMC article.
Testing the Correlated Random Coefficient Model.
Heckman JJ, Schmierer D, Urzua S. Heckman JJ, et al. J Econom. 2010 Oct 1;158(2):177-203. doi: 10.1016/j.jeconom.2010.01.005. J Econom. 2010. PMID: 21057649 Free PMC article.
13 results