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This paper presents results for identification and estimation of the value distribution from eBay auction prices. The paper presents results for eBay type auctions with independent private values and unobserved participation. It is first shown that the distribution of values is identified from observing the distribution of prices and knowing the distribution of potential bidders. The main identification result presents conditions for which the distribution of values and the distribution of potential bidders are simultaneously identified. Not surprisingly, the intuition is similar to the standard results for identifying demand from observed equilibrium prices. The estimation method suggested by the identification results is used to estimate the value distribution for the “C5” Chevrolet Corvette sold on eBay. The results suggest that a simple OLS model on prices will over estimate the mean value of the item. The estimation results are then used to calculate the optimal reserve price for these cars. The estimated optimal reserves are compared to the actual reserves. Actual hidden reserves are set much higher than actual non-hidden reserves. The evidence suggests sellers set Buy-It-Nows and hidden reserves optimally to account for re-listing opportunities.  相似文献   
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Forecast improvement is often approached by attempting to find the “best” model for a given situation. Less attention has been paid to the possibility of examining past prediction errors for patterns that may suggest forecast adjustments for the future. This empirical study involves one firm’s management judgment forecasts for product sales and the attempts made to improve their accuracy by removing certain types of bias. In three of the five series examined, error reduction averaging close to thirty percent occurs as a result of the adjustment procedure. The other two series proved to be relatively free from bias and were therefore not in need of the correction method described.  相似文献   
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Brazil’s political-economic structure has rapidly evolved over the past decade, shedding its shallow policy alignment with neoliberalism of the 1990s. Brazil’s large, diversified industrial base was painfully constructed over the course of the twentieth century. A major and sustained political realignment, which began in 2003, has resulted in two essential thrusts in development policy: (i) a “growth with equity” strategy that has dramatically reduced poverty and inequality; and (ii) a state-led “industrial policy” designed to upgrade manufacturing and direct the accumulation process toward specific sectors, highlighting and consolidating the National Innovation System (NIS). Nonetheless, as a result of the commodity boom that swept through Latin America, Brazil’s natural resource sector achieved outsized growth from 2002 to 2012. One result has been a shift toward resource intensive activities and a broad opening to low-cost Chinese manufactures. Utilizing an institutionalist framework and method, this article analyzes the cohesion of the NIS and the emergence of the “deindustrialization” debate. Also, it assesses the instrumental nature of the “growth with equity” strategy. The article hypothesizes the viability of an endogenous “neo-developmentalist” strategy, while acknowledging the emergence of fundamental exogenous forces and structural ceremonial/institutional factors that have impeded the consolidation of a Brazilian social structure of accumulation.  相似文献   
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This article discusses consumption as a social process that is part of social provisioning and is in an evolutionary interplay with other social processes. The analysis provides grounds for a context-specific research that explores consumption in the context of a culture-nature life process, and draws on material from various disciplines. The article seeks to contribute to the literature on social provisioning as an organizing concept in heterodox economics. The first section explains what is meant by social process and delineates its elements. The second section formulates a categorization of social processes, and locates a consumption process within a system of culture-nature life processes. The rest of the article delineates the elements of the consumption process, providing illustrations based on literature from various disciplines. Specifically, the third section discusses consumption activities. The fourth section discusses institutions and systems of provision of goods and services. The fifth section applies the concept of habits of life and thought to the consumption process. Finally, the article concludes that the formulated analysis transcends dualisms such as social-economic, cultural-material, society-nature, and micro-macro, and draws implications for heterodox economics.  相似文献   
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Supply chain management (SCM) plays a major role in creating (or destroying) shareholder value by influencing the three major drivers of firm financial performance: revenue, operating costs, and working capital. Yet, the relationship between SCM competency and firm financial performance is not well‐established. Drawing on the resource‐based view of the firm, this study assesses this relationship using Delphi‐style opinion data from AMR Research’s Supply Chain Top 25 rankings to assess SCM competency and Altman’s (1968) Z‐score statistic as the measure of financial success. The study findings show that firms recognized by industry experts for SCM competency have significantly higher Z‐scores than their close competitors and industry averages.  相似文献   
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