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STATA TIME-SERIES REFERENCE MANUAL RELEASE 12 ® A Stata Press Publication StataCorp LP College Station, Texas ® Copyright c 1985–2011 StataCorp LP All rights reserved…

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STATA TREATMENT-EFFECTS REFERENCE MANUAL: POTENTIAL OUTCOMES/COUNTERFACTUAL OUTCOMES RELEASE 13 ® A Stata Press Publication StataCorp LP College Station, Texas ® Copyright…

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STATA MULTILEVEL MIXED-EFFECTS REFERENCE MANUAL RELEASE 13 ® A Stata Press Publication StataCorp LP College Station, Texas ® Copyright c© 1985–2013 StataCorp LP All…

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STATA GRAPHICS REFERENCE MANUAL RELEASE 13 ® A Stata Press Publication StataCorp LP College Station, Texas ® Copyright c© 1985–2013 StataCorp LP All rights reserved…