?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.relation=https%3A%2F%2Fpure.iiasa.ac.at%2Fid%2Feprint%2F13617%2F&rft.title=Expectation+of+Life+at+Old+Age%3A+Revisiting+Horiuchi-Coale+and+Reconciling+with+Mitra&rft.creator=Ediev%2C+D.&rft.description=Horiuchi+%26+Coale+(1982)+have+suggested+a+simple+formula+to+improve+the+estimates+of+the+expectation+of+life+at+old+age%2C+a+formula+that+was+questioned+as+unrealistic+by+Mitra+(1984%3B+1985)%2C+whose+alternative+approach+was+in+return+criticized+for+being+prone+to+biases+due+to+age+exaggeration+(Coale+1985).+The+discussion+between+the+researchers+have+not+been+resolved.+This+lack+of+agreement+and+the+simplifying+assumptions+behind+both+approaches+prevented+their+integration+in+the+practical+toolkit+of+demographic+analysis.+This+paper+shows+that+both+methods+are+useful+in+drastically+reducing+the+estimation+errors+in+life+expectancy.+The+disputes+were+largely+due+to+inconsistent+inputs+rather+than+methodological+contradictions.+Furthermore%2C+the+methods+produce+by+far+better+results+as+compared+to+the+popular+alternative%2C+the+extrapolation+of+the+death+rates.+In+combination+the+two+alternative+methods+may+even+lead+to+a+better+outcome.&rft.publisher=WP-16-010&rft.date=2016-08-07&rft.type=Monograph&rft.type=NonPeerReviewed&rft.format=text&rft.language=en&rft.rights=cc_by&rft.identifier=https%3A%2F%2Fpure.iiasa.ac.at%2Fid%2Feprint%2F13617%2F1%2FWP-16-010.pdf&rft.identifier=++Ediev%2C+D.+%3Chttps%3A%2F%2Fpure.iiasa.ac.at%2Fview%2Fiiasa%2F76.html%3E+ORCID%3A+https%3A%2F%2Forcid.org%2F0000-0001-7503-5142+%3Chttps%3A%2F%2Forcid.org%2F0000-0001-7503-5142%3E++(2016).++Expectation+of+Life+at+Old+Age%3A+Revisiting+Horiuchi-Coale+and+Reconciling+with+Mitra.+++IIASA+Working+Paper.+IIASA%2C+Laxenburg%2C+Austria%3A+WP-16-010+++++