How To Be Loyal, Rich And Have Fun Too: The Fun Is Yet To Come
How To Be Loyal, Rich And Have Fun Too: The Fun Is Yet To Come
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如何变得忠诚、富有并享受乐趣:乐趣尚未到来
DOI:
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发表时间:
2002
期刊:
影响因子:
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通讯作者:
David Hales
中科院分区:
文献类型:
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作者:
J. Rouchier;David Hales
”, a wholesale fruits and vegetables market, situated near Marseille, and which represents one of the main hubs of supply for retailers. The elaboration of prices takes place through one-to-one interactions along the morning, with only oral information being given to retailers. To elaborate its prices, each wholesale seller competes with all his colleagues of the market and is dependent on its suppliers’ offers. The indirect competitors of all retailers are the supermarket suppliers, which define the average prices Supermarkets use an alternate (and larger) supply chain. The study of real markets is not extremely developed yet in the economics field (Kirman, 2002). Classical economic analysis deals with ideal prices that ought to appear when certain buyers and sellers, whose reservation prices are known, meet. Reservation price is a key concept in the study of markets: it stands for the minimum price a seller wants to get for the product he is selling (alternatively the maximum price a buyer is willing to give). Once ones knows all the reservation prices, it is indeed possible to know who will be able to exchange and who has expectations that cannot be fulfilled; then to build an offer and demand curve, which intersect at a value called the equilibrium price. A classical approach enables to interrogate the nature of market institutions (institutions can be for example auctions or paired interactions) by evaluating their efficiency, i.e. the total value produced compared to an ideal value with the best possible matching. An other issue is the one of information that is generated for the agents by exchanges that take place: how much does each transaction reveal of the reservation prices of the others (and hence their preferences). Once one starts to study how information is generated and processed by individuals, it becomes interesting to study markets in real, so that to find out how individuals actually deal with dynamical offers and demands that can be expressed through transactions, price proposals, apparition of shortages. One trend is the study led by behavioural economists, who put people in artificial controlled market settings (Smith, 2002; Rabin, 2002). They observe the proposals and accepted transactions along the time, and can limit and monitor any information circulation. They analyse how prices dynamics can be related to the institution that is chosen to organise the interactions. They use comparison to establish their hypothesis: they observe real actions in different settings, where the quantity and quality of information can vary. Another approach is the study of real markets in their natural environment, where no variable can becontrolled. Whereas artificial markets enable to study the actions of individuals undergoing short-time interactions in a market activity, the observation of a living market can