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Erschienen in:
2017 | OriginalPaper | Buchkapitel
Now, Later, or Both: A Closed-Form Optimal Decision for a Risk-Averse Buyer
verfasst von : Jasper Hoogland, Mathijs de Weerdt, Han La Poutré
Erschienen in: Agent-Mediated Electronic Commerce. Designing Trading Strategies and Mechanisms for Electronic Markets
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Abstract
Motivated by the energy domain, we examine a risk-averse buyer that has to purchase a fixed quantity of a continuous good. The buyer has two opportunities to buy: now or later. The buyer can spread the quantity over the two timeslots in any way, as long as the total quantity remains the same. The current price is known, but the future price is not. It is well known that risk neutral buyers purchase in whichever timeslot they expect to be the cheapest, regardless of the uncertainty of the future price. Research suggests, however, that most people may in fact be risk-averse. If the future price is expected to be lower than the current price, but very uncertain, then they may prefer to purchase in the present, or spread the quantity over both timeslots. We describe a formal model with a uniform price distribution and a piecewise linear risk aversion function. We provide a theorem that states the optimal behavior as a closed-form expression, and we give a proof of this theorem.