面向動(dòng)態(tài)風(fēng)險(xiǎn)評價(jià)及投資決策的IRRV模型
發(fā)布時(shí)間:2018-06-27 10:10
本文選題:時(shí)間-概率權(quán)衡 + 風(fēng)險(xiǎn)-價(jià)值權(quán)衡 ; 參考:《中國管理科學(xué)》2008年06期
【摘要】:建立了跨期相對風(fēng)險(xiǎn)-價(jià)值(Inter-temporal Relative Risk-Value,簡稱IRRV)模型,首次整合了時(shí)間-概率權(quán)衡與風(fēng)險(xiǎn)-價(jià)值權(quán)衡。面向結(jié)果非負(fù)的復(fù)雜風(fēng)險(xiǎn)事件,在偏好公理的基礎(chǔ)上推導(dǎo)出時(shí)間-概率權(quán)衡關(guān)系的顯性表達(dá)式,將時(shí)間具有內(nèi)在不確定性這一植根于"心理距離"的直覺思想形式化,最終用關(guān)于時(shí)間的內(nèi)在折扣率刻畫跨期對決策者效用的影響。內(nèi)在折扣率取決于決策者的時(shí)間偏好,也可能依賴結(jié)果的量值,是決定時(shí)間-概率權(quán)衡的核心因素。借助時(shí)間-概率權(quán)衡理論,將靜態(tài)意義上的相對風(fēng)險(xiǎn)-價(jià)值模型擴(kuò)展成為動(dòng)態(tài)意義上的跨期相對風(fēng)險(xiǎn)-價(jià)值模型。該模型在同一個(gè)空間內(nèi)綜合考慮了價(jià)值、時(shí)間和概率三個(gè)基本的決策維度,為動(dòng)態(tài)風(fēng)險(xiǎn)決策提供了一個(gè)規(guī)范化框架。
[Abstract]:An inter-temporal relative Risk-Value (IRRV) model is established, which integrates time-probability trade-off and risk-value trade-off for the first time. Based on the preference axiom, the explicit expression of time-probability tradeoff relation is derived for complex risk events with non-negative results. The intuitive thought of "psychological distance" is rooted in the inherent uncertainty of time. Finally, the intertemporal impact on the utility of decision makers is characterized by the intrinsic discount rate on time. The intrinsic discount rate depends on the time preference of the decision maker and may also depend on the quantity of the result, which is the core factor to determine the time-probability tradeoff. With the help of time-probability tradeoff theory, the relative risk- value model in the static sense is extended to the intertemporal relative risk- value model in the dynamic sense. The model considers three basic decision dimensions of value, time and probability in the same space, and provides a normative framework for dynamic risk decision making.
【作者單位】: 湖南大學(xué)工商管理學(xué)院;
【基金】:國家杰出青年科學(xué)基金資助項(xiàng)目(70825006) 國家自然科學(xué)基金資助項(xiàng)目(70471030)
【分類號(hào)】:C934;F224
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