{"id":6354,"date":"2026-06-04T13:43:00","date_gmt":"2026-06-04T04:43:00","guid":{"rendered":"https:\/\/www.waseda.jp\/fcom\/riba\/?p=6354"},"modified":"2026-06-04T13:43:00","modified_gmt":"2026-06-04T04:43:00","slug":"2026%e5%b9%b47%e6%9c%8813%e6%97%a5%e6%9c%88-%e3%81%ab%e7%94%a3%e7%a0%94%e8%ac%9b%e6%bc%94%e4%bc%9a%e3%80%8cwaseda-organizational-and-financial-economics-seminar-%ef%bc%9a-single-crossing-average-con","status":"publish","type":"post","link":"https:\/\/www.waseda.jp\/fcom\/riba\/news\/6354","title":{"rendered":"2026\u5e747\u670813\u65e5(\u6708) \u306b\u7523\u7814\u8b1b\u6f14\u4f1a\u300cWaseda Organizational and Financial Economics Seminar \uff1a Single-Crossing Average Contracts and the Direction of Risk-Taking\u300d\u304c\u958b\u50ac\u3055\u308c\u307e\u3059\u3002"},"content":{"rendered":"

\u300cSingle-Crossing Average Contracts and the Direction of Risk-Taking\u300d<\/span><\/h3>\n
\n\n\n\n\n\n\n\n\n\n
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\u8b1b\u6f14\u8005<\/th>\n\u5ddd\u4e0a\u3000\u572d \u6c0f<\/p>\n

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\u8981\u65e8<\/th>\nThis paper studies how contracts affect risk-taking under expected utility. We identify a class of contracts — single-crossing average (SCA) contracts — for which a simple local condition on the average slope determines the direction of risk-taking for all risk-averse agents. Contracts that amplify losses more than gains discourage risk-taking, while those that attenuate losses encourage it. The result does not rely on global concavity of the contract and accommodates general nonlinear transformations. SCA contracts are closed under composition, so their effects on risk-taking are preserved under layering. We also propose a local riskiness index that provides a complete ordering of contracts and admits a natural interpretation alongside the Arrow–Pratt measure of risk aversion.<\/td>\n<\/tr>\n
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 <\/p>\n","protected":false},"excerpt":{"rendered":"

\u300cSingle-Crossing Average Contracts and the Direction of Risk-Taking\u300d \u65e5\u6642 2026\u5e747\u670813\u65e5\uff08\u6708\uff0913:10~14:50 \u958b\u50ac\u65b9\u6cd5 \u2460\u5bfe\u9762 \uff0a11\u53f7 […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[24],"class_list":["post-6354","post","type-post","status-publish","format-standard","hentry","category-news","tag-events"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.waseda.jp\/fcom\/riba\/wp-json\/wp\/v2\/posts\/6354","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.waseda.jp\/fcom\/riba\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.waseda.jp\/fcom\/riba\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.waseda.jp\/fcom\/riba\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.waseda.jp\/fcom\/riba\/wp-json\/wp\/v2\/comments?post=6354"}],"version-history":[{"count":1,"href":"https:\/\/www.waseda.jp\/fcom\/riba\/wp-json\/wp\/v2\/posts\/6354\/revisions"}],"predecessor-version":[{"id":6359,"href":"https:\/\/www.waseda.jp\/fcom\/riba\/wp-json\/wp\/v2\/posts\/6354\/revisions\/6359"}],"wp:attachment":[{"href":"https:\/\/www.waseda.jp\/fcom\/riba\/wp-json\/wp\/v2\/media?parent=6354"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.waseda.jp\/fcom\/riba\/wp-json\/wp\/v2\/categories?post=6354"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.waseda.jp\/fcom\/riba\/wp-json\/wp\/v2\/tags?post=6354"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}