By Iacus Stefano   Porro Giuseppe   in Education Economics

ISSN:1469-5782|19|2|139-159

Routledge Ltd‎(2011)‎

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By Iacus Stefano M.   King Gary   Porro Giuseppe   in Journal of the American Statistical Association

ISSN:0162-1459|106|493|345-361

Taylor & Francis Ltd‎(2011)‎

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