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In this paper we develop a model of a repeated spatial auction market. The auction model contributes to the literature on spatial competition by considering the sale of goods in a market with spatial and temporal dimensions, and in which goods are sold by an auction institution instead of a posted-price institution. In the Nash equilibrium of the spatial auction model, each bidder is found to have a dominance solvable strategy to bid below his net (of transportation costs) valuation for the first unit of the good because there is an option value to not winning, namely that the following units may be locationally preferred to the first unit. The equilibrium bidding strategies lead to the possibility of non–Pareto-efficient outcomes. The auction model is applied to data from U.S. Forest Service timber sales. 相似文献
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Frank W. Stahnisch 《Journal of the history of the neurosciences》2017,26(3):316-328
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Does the president have the ability to set the congressional agenda? Agenda setting is a prerequisite for influence, so this is an important element in understanding presidential–legislative relations. We focus on the State of the Union address and show that popular presidents can, indeed, cause Congress to shift attention to those topics most emphasized. The impact is tempered by divided government and time, however. No matter the state of divided government, however, popular presidents can direct congressional attention, at least for a little while. Unpopular presidents, by contrast, are irrelevant. 相似文献
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While the remains of the well‐preserved and excavated towns of Pompeii, Ostia and Herculaneum provide us with a fascinating impression of their once bustling economic life, the study of urban economic space requires a more extensive geographical and methodological framework. This paper investigates whether the systematic use of non‐invasive techniques at other, often neglected, urban sites can deliver a meaningful contribution to the study of Roman urbanism, especially by revealing previously unknown foci of commercial activity in the Roman city. To illustrate the effectiveness of certain non‐destructive strategies, including geophysical prospection and aerial survey, we focus on a specific type of market building that was quite common in the Roman world, the macellum. The case studies presented here demonstrate how non‐invasive archaeological investigation, often in combination with other topographic operations, can facilitate the identification of macella and enhance studies of economic architecture and space in Roman towns in Italy and the provinces. 相似文献