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The Effect of the 18-Year Old Drinking Age on Auto Accidents

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dc.creator Cucchiaro, Stephen
dc.creator Ferreira, Joseph Jr.
dc.creator Sicherman, Alan
dc.date 2004-05-28T19:29:44Z
dc.date 2004-05-28T19:29:44Z
dc.date 1974-05
dc.date.accessioned 2013-10-09T02:38:34Z
dc.date.available 2013-10-09T02:38:34Z
dc.date.issued 2013-10-09
dc.identifier http://hdl.handle.net/1721.1/5242
dc.identifier.uri http://koha.mediu.edu.my:8181/xmlui/handle/1721
dc.description The effect of Massachusetts' reduced drinking age on auto accidents is examined by employing an interrupted time series analysis of monthly accident data covering the period January, 1969, through September 1973. The data were stratified by driver age, accident type and (to a limited extent) operating-after-drinking. These raw data were adjusted using monthly mileage and seasonal indices and, where possible, a control group not affected by the drinking law. Correlograms of the adjusted series were computed to check for remaining systematic bias. Finally, the average accident rates for the adjusted, well-behaved series before and after the March 1973 change were compared using standard t-tests. Accident rates among 18-20 year olds did increase significantly-- about 40% for involvement in fatalities. Nevertheless, the results are consistent with the hypothesis that, as a result of the reduced drinking age, 18-20 year old driving-after-drinking behavior has become comparable to that of older drivers.
dc.description This research was supported in part by NSF Grant GI 38004, by the MIT Undergraduate Research Opportunities Program, and by the U. S. Army Research Office (Durham) under Contract No. DA HC04-73-C-0032
dc.format 1746 bytes
dc.format 4628082 bytes
dc.format application/pdf
dc.language en_US
dc.publisher Massachusetts Institute of Technology, Operations Research Center
dc.relation Operations Research Center Working Paper;OR 034-74
dc.title The Effect of the 18-Year Old Drinking Age on Auto Accidents
dc.type Working Paper


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