一題研究所考題-風險 - 經濟

By Caitlin
at 2009-03-19T14:25
at 2009-03-19T14:25
Table of Contents
某研究所97年考題
題目如下
Consider the exponential utility function -exp(-ρc).Show that it is
increasing (u'>0) and concave (u"<0) for all c>0 as long as ρ>0,that is,
as long as that agent is risk-averse.Show that this function has constant
absolute risk aversion coefficient γA given by ρ.
這題我看了好久
在想是不是要求風險値
無奈一直不知道從何下筆
而這題後面還有延伸其他小題
1-ρ
C
2) ------- ,ρ≠1 3) ln(c)
1-ρ
懇請版上的高手能提點一下
感謝。
--
題目如下
Consider the exponential utility function -exp(-ρc).Show that it is
increasing (u'>0) and concave (u"<0) for all c>0 as long as ρ>0,that is,
as long as that agent is risk-averse.Show that this function has constant
absolute risk aversion coefficient γA given by ρ.
這題我看了好久
在想是不是要求風險値
無奈一直不知道從何下筆
而這題後面還有延伸其他小題
1-ρ
C
2) ------- ,ρ≠1 3) ln(c)
1-ρ
懇請版上的高手能提點一下
感謝。
--
Tags:
經濟
All Comments

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