Consider a single consumption good and two states of nature {a, b}. An investor has preferences and a (random) endowment of this commodity as follows: ● u (x(a), x(b)) = logx(a) + logx(b), (e(a), e(b)) = (0, 2) In order to hedge against risk this investor can trade two securities with returns = - 3 per denominated in units of the commodity: r₁ = = (1), trading at a price 9₁ (2), trading at a price 92 Find the optimal consumption plan of this investor and answer: If instead of asset markets this investor faced contingent markets, for what (rela- tive) contingent market prices (a) would this investor choose THE SAME optimal consumption plan? p(b) unit and r2 = = 4 per unit. Answer:

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Chapter1: Making Economics Decisions
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Consider a single consumption good and two states of nature {a, b}. An investor has
preferences and a (random) endowment of this commodity as follows:
• u (x(a), x(b)) = logx(a) + logx(b), (e(a), e(b)) = (0, 2)
In order to hedge against risk this investor can trade two securities with returns
(1).
denominated in units of the commodity: rị =
trading at a price q1 = 3 per
unit and r2 =
C), trading
at a price
= 4 per unit. Answer:
q2
Find the optimal consumption plan of this investor and answer:
If instead of asset markets this investor faced contingent markets, for what (rela-
tive) contingent market prices P would this investor choose THE SAME optimal
consumption plan?
p(b)
Transcribed Image Text:Consider a single consumption good and two states of nature {a, b}. An investor has preferences and a (random) endowment of this commodity as follows: • u (x(a), x(b)) = logx(a) + logx(b), (e(a), e(b)) = (0, 2) In order to hedge against risk this investor can trade two securities with returns (1). denominated in units of the commodity: rị = trading at a price q1 = 3 per unit and r2 = C), trading at a price = 4 per unit. Answer: q2 Find the optimal consumption plan of this investor and answer: If instead of asset markets this investor faced contingent markets, for what (rela- tive) contingent market prices P would this investor choose THE SAME optimal consumption plan? p(b)
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