1945- 1973-1992 1980-1993 1981-2001 abuseof assistedsuicide battleford california canada casestudies chicagoschoolofeconomics childrenwithdisabilities chile economicconditions economicpolicy etc euthanasia freeenterprise governmentpolicy greatbritain imprisonment kimber klaas latimer laws legalstatus mandatorysentences murder peoplewithdisabilities politicsandgovernment pollyhannah prisonsentences punishmentincrimedeterrence reynolds saskatchewan supply-sideeconomics tracy trials(euthanasia) unitedstates