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21.
Y is conditionally independent of Z given X if Pr{f(y|X,Z)=f(y|X)}=1 for all y on its support, where f(·|·) denotes the conditional density of Y given (X,Z) or X. This paper proposes a nonparametric test of conditional independence based on the notion that two conditional distributions are equal if and only if the corresponding conditional characteristic functions are equal. We extend the test of Su and White (2005. A Hellinger-metric nonparametric test for conditional independence. Discussion Paper, Department of Economics, UCSD) in two directions: (1) our test is less sensitive to the choice of bandwidth sequences; (2) our test has power against deviations on the full support of the density of (X,Y,Z). We establish asymptotic normality for our test statistic under weak data dependence conditions. Simulation results suggest that the test is well behaved in finite samples. Applications to stock market data indicate that our test can reveal some interesting nonlinear dependence that a traditional linear Granger causality test fails to detect. 相似文献
22.
Ruth Rentschler Anne-Marie Hede Tabitha R. White 《International Journal of Nonprofit & Voluntary Sector Marketing》2007,12(2):163-173
- The museum sector has undergone considerable change in the last few decades, which has been a result of both internal and external forces. The topic of pricing in museums, however, has attracted little interest from researchers in the field despite the sector's need to understand it better. This study aimed to address this gap in knowledge. Results of a comprehensive literature review on pricing highlight that the topic of pricing in museums is problematic, as a range of issues, social, political and often value-laden, must be considered before pricing decisions can be made. The study highlights that there is diversity in the sector with regard to pricing, but that museums generally adopt a unilateral approach to pricing. Researchers in entrepreneurial marketing have noted that conventional pricing theory is being turned on its head and they argue that deciding what prices to charge represents one of the more entrepreneurial strategies for organisations. This study indicates that, within the context of museums, marketers are failing to recognise and capitalise on such pricing opportunities. Approaches to setting multiple museum pricing strategies, depending on the market context, are proposed in this paper. In this way, knowledge of museum pricing can optimise the organisational outcomes of museums while continuing to meet their social responsibilities.
23.
Eugene N. White 《Cliometrica》2007,1(2):115-144
The crash of the French stock market in 1882 presented the Paris Bourse with its worst crisis of the nineteenth century. Its
structure was similar in key respects to today’s futures markets, with a dominant forward market leading the Bourse to adopt
a common fund to guarantee transactions and liquidity. While this mutualization of risk protects clients and brokers from
idiosyncratic shocks, it is generally assumed that it also provides considerable protection against systemic shocks, as no
twentieth century exchange has been forced to shut down. Using new archival data, this paper shows how a stock market crash
overwhelmed the Bourse’s common fund. Only an emergency loan from the Bank of France, intermediated by the largest banks,
prevented a closure of the Bourse.
相似文献
Eugene N. WhiteEmail: |
24.
25.
Finch CF Otago L White P Donaldson A Mahoney M 《International journal of injury control and safety promotion》2011,18(2):107-112
Multi-purpose recreation facilities (MPRFs) are a popular setting for physical activity and it is therefore important that they are safe for all patrons. However, the attitudes of MPRF users towards safety are a potential barrier to the success of injury prevention programmes implemented within MPRFs. This article reports a survey of the safety attitudes of over 700 users of four indoor MPRFs. Factor analysis of 12 five-point Likert scale statements showed that the attitudes clustered around three major dimensions - the importance of safety, the benefits of safety and the perceptions of injury risk. Together, these three dimensions accounted for 49% of the variability in the attitudes. More than 85% of respondents agreed/strongly agreed that: safety was an important aspect of physical activity participation; being injured affected enjoyment of physical activity; people should adopt appropriate safety measures for all physical activity; and individuals were responsible for their own safety. The MPRF users, particularly women and older people, were generally safety conscious, believed in adopting safety measures, and were willing to take responsibility for their own safety. Facility managers can be confident that if they provide evidence-based injury prevention interventions in these settings, then users will respond appropriately and adopt the promoted behaviours. 相似文献
26.
Dave D. White 《Leisure Sciences: An Interdisciplinary Journal》2013,35(4):342-359
A conceptual model tested the leisure constraints negotiation process of outdoor recreation: motivation and the constraints to participate likely influenced by negotiation efforts. Higher motivation to participate encourages using negotiation strategies and resources to overcome constraints. Experiencing constraints was thought to trigger negotiation efforts. Drawing from social cognitive theory, negotiation-efficacy was proposed to encourage motivation, diminish the perception of constraints and promote negotiation efforts, which indirectly influenced positive participation. The model tested used data collected from a random sample of Arizona residents through hierarchical confirmatory factor analysis and structural equation modeling. Results support the conceptual model and suggest the constraints negotiation process is a dynamic interaction of influences promoting outdoor recreation participation. 相似文献
27.
Sheneeta W. White 《International Journal of Production Economics》2013,141(2):478-484
The way in which service firms transform inputs into outputs is typically uncertain or unknown. Consequently decision makers, at best, can only make estimates of the underlying production function. The purpose of this study is to offer policy recommendations to service providers and to examine experimentally the sensitivity of estimates of production functions. The primary result of this study is a foundation for modeling manpower planning decisions for co-produced services when production functions are mis-estimated and/or mis-specified. 相似文献
28.
George O. White John Hadjimarcou Stav Fainshmidt Richard A. Posthuma 《International Business Review》2013,22(3):554-567
The increasing frequency and complexity of transnational business relationships has been commensurate with an increase in contractual disputes. In such situations, home country cultural norms will often influence how MNEs resolve contractual disputes in foreign markets. This begs the question: does fit between an MNE's choice of conflict strategy and its home country cultural norms affect monetary payouts (costs) in transnational business contract disputes? We apply organizational imprinting theory and the fit paradigm to a model employing data from U.S. court cases involving 316 MNEs from 47 countries. We find that choosing a conflict strategy that fits home country cultural norms will result in higher monetary payouts for MNEs. Additionally, cultural distance, but not legal distance, enhances the positive relationship between MNE conflict strategy fit and monetary payouts. Implications and future research directions are discussed. 相似文献
29.
Chelsea C. White III Taesu Cheong 《Transportation Research Part E: Logistics and Transportation Review》2012,48(1):310-330
We determine the value of monitoring perishable freight in-transit for a single vehicle traveling from an origin to a destination. We develop a computationally practical approach for determining the optimal expected cost function and an optimal policy, based on an infinite horizon partially observed Markov decision process model. Structural properties of the optimal expected cost function and optimal policy are determined. These results can lend insight when deciding whether to acquire the capacity to monitor freight status in transit and what actions to take, based on the data from the in-transit monitoring, that optimally increase expected supply chain productivity. 相似文献
30.
Christopher J. White 《The Service Industries Journal》2013,33(8):837-847
The purpose of this study was to explore the relationship between mood states, emotions, perceptions of service quality and consumer loyalty in an extended service context. A quantitative research design, using multivariate statistical techniques, facilitated the data analysis. The sample consisted of 220 students from a private university in Switzerland. The results indicated that all of the variables were significantly correlated and mood state was demonstrated to influence the way judgements were formed. The contribution of mood to explaining the variance in loyalty was however minimal. 相似文献