1905-2006 1925- 1925-2014 1928-2018 20thcentury 330 american americanpoetry arrow biography decisionmaking donald economics equilibrium(economics) ethics hall health historyandcriticism homesandhaunts inliterature insurance kennethjoseph kumin kunitz lightanddarknessinliterature macroeconomics maxine medical medicaleconomics moralandethicalaspects newengland poets politicalandsocialviews politicalandsocialviewsarrow richard socialchoice socialwelfare stanley uncertainty unitedstates w74aa1u542003 wilbur