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Spatial Price Adjustment with and without Trade* 总被引:1,自引:0,他引:1
Emma C. Stephens Edward Mabaya Stephan von Cramon‐Taubadel Christopher B. Barrett 《Oxford bulletin of economics and statistics》2012,74(3):453-469
We investigate the possibility that price transmission between spatially distinct markets might vary during periods with and without physical trade flows. We test for differences between trade and non‐trade regimes by using generalized reduced rank regression (GRRR) techniques suggested by Hansen (2003) . We apply these techniques to semi‐weekly price and trade flow data for tomato markets in Zimbabwe and find that intermarket price adjustment occurs in both trade and non‐trade periods. Indeed, the adjustments are generally larger and more rapid in periods without physical trade flows. This finding underscores the importance of information flow for market performance. 相似文献
74.
The increased demand for health care, coupled with limited resources, means that decisions have to be made concerning the allocation of scarce health care resources. This paper considers how conjoint analysis (CA) can be used to aid this decision making process. It is shown how the technique can be used to estimate marginal rates of substitution between attributes, willingness to pay (WTP) if cost is included as an attribute and overall utility scores for different ways of providing a service. The technique is applied to consider women's preferences for two surgical procedures in the treatment of menorrhagia: hysterectomy and conservative surgery. The results suggest conservative surgery is preferred to hysterectomy, as indicated by higher utility scores for the former and a marginal WTP of 7593 to have conservative surgery rather than hysterectomy. The internal validity of CA was also shown. It is concluded that CA is a potentially useful instrument for policy makers. However, numerous methodological issues need addressing before the technique becomes an established instrument within economic evaluations. 相似文献
75.
Fabrizio Scrima Lucrezia Lorito Emma Parry Giorgio Falgares 《International Journal of Human Resource Management》2013,24(15):2159-2173
This study examines job involvement and work engagement as predictors of affective commitment. Specifically, we test the proposal of Hallberg and Schaufeli (2006) that work engagement is a mediator of the relationship between job involvement and affective commitment using a survey of 405 Italian working adults. To test the model, mediation effects technique and structural equation modelling were applied to the collected data. Our hypothesis that work engagement fully mediates the relationship between job involvement and affective commitment was supported. This is the first study to demonstrate the importance of job involvement in promoting affective commitment via three dimensions of work engagement. We therefore assert that HR managers should direct their available resources to promoting job involvement and work engagement in their employees. 相似文献
76.
Studies of voluntary conservation response to changing information about an environmental problem have traditionally been synonymous with studies of information campaign effectiveness. As such, they have not been able to capture the response to actual changes in the environment. This paper takes a novel approach to identifying voluntary conservation by studying the impact of changing storage levels on urban water usage in the context of a prolonged drought and a highly ’water aware’ community. Our results suggest that voluntary conservation increases substantially when water is scarce and the public value of the savings is greatest. We discuss the implications of these findings for our understanding of environmental information campaigns in general, and urban water demand management in particular. 相似文献
77.
We consider a set of asymmetrically informed agents, where the information of each trader is susceptible of being altered when she becomes a member of a coalition. For this, we consider a general rule that depending on the coalition, a signal (or an information partition) is assigned to each member of the coalition. We set examples showing that Grodal’s (Econometrica 40:581–583, 1972), Schmeidler’s (Econometrica 40:579–580, 1972) and Vind’s (Econometrica 40:585–586, 1972) core characterizations of a continuum economy may fail in this general informational setting. However, under mild assumptions on the rule, we extend Schmeidler’s and Vind’s results to economies that allocate information to agents in each coalition according to the rule. We then focus on information mechanisms based on the size of coalitions and provide a general characterization result for the corresponding cores. Moreover, we pay close attention to the rule that assigns the shared information to each member of specific coalitions. We prove that the resulting cores are exactly the same independently of whether arbitrarily small or large coalitions share information. 相似文献
78.
Ana Mosquera Emma Juaneda Ayensa Cristina Olarte Pascual Yolanda Sierra Murillo 《Journal of Promotion Management》2019,25(5):681-699
The purpose of this paper is twofold: first, to identify groups of omnishoppers based on their main motivations (usefulness, enjoyment, and social influence); and, second, to characterize the omnishopper clusters. To this end, we surveyed a sample of 628 customers of an omnichannel clothing store and analyzed the data using cluster analysis. The results reveal three different segments: reluctant omnishoppers, omnichannel enthusiasts, and indifferent omnishoppers; and significant differences in gender, age, income level, and omnichannel behavior among these segments. In contrast, we found no differences in the use of channels and devices. These results have theoretical and managerial implications. 相似文献
79.
In competitive markets, profits deviating from the norm will not persist for extended periods. If unimpeded, entry and exit of firms should restore profits to competitive levels. This dynamic process is influenced by regulations that temporarily or permanently impede competition. We study how product market regulations (PMR)—as measured by the OECD—affect competition by their impact on the profit persistence (Wölfl et al. in Ten years of product market reform in OECD countries-insights from a revised PMR indicator, 2009, Product market regulation: extending the analysis beyond OECD countries, 2010). To examine profit dynamics, we follow the methodology developed by Mueller (Economica 44(176):369–380, 1977), which measures both the short run persistence of profits and the long run permanent rents. The method can be used to measure: (1) short run transitory rents; (2) long run permanent rents. To this end we use firm level data from 30 OECD countries over the period 1998–2013. Results show that PMR increase the permanent rents of firms but we find no significant effect on short run profit persistence. We conclude that PMR negatively influence competition and increase permanent rents, resulting in misallocation of resources. 相似文献
80.
We characterize the core and the competitive allocations of a continuum economy as strong Nash equilibria of an associated game with only two players. 相似文献