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101.
AbstractThe ever-growing volume of brand-related conversations on social media platforms has captivated the attention of academics and practitioners, as the analysis of those conversations promises to offer unparalleled insight into consumers’ emotions. This article takes a step back from the hype, and investigates the vulnerabilities related to the analysis of social media data concerning consumers’ sentiment. A review of the literature indicates that the form, focus, source and context of the communication may negatively impact on the analyst’s ability to identify sentiment polarity and emotional state. Likewise, the selection of analytical tool, the creation of codes, and the classification of the data, adversely affect the researcher’s ability to accurately assess the sentiment expressed in a social media conversation. Our study of Twitter conversations about coffee shows low levels of agreement between manual and automated analysis, which is of grave concern given the popularity of the latter in consumer research. 相似文献
102.
Juan Ignacio Pulido‐Fernndez Pablo Juan Crdenas‐García Isabel Carrillo‐Hidalgo 《International Journal of Tourism Research》2016,18(4):286-296
Although tourism expenditure is determined by different factors, the literature has not analysed the extent to which trip cultural activities affect tourism expenditure in the destination. The focus of this paper is a microeconomic analysis performed in 14 emerging urban‐cultural destinations in Andalusia (Spain). The results confirm that there are activities related to cultural visits, attendance at events or gastronomic activities that determine tourism expenditure. These results guide the implementation of specific actions by the policy‐makers in these destinations aimed at increasing the economic impact of tourism, based on the creation of high value‐added tourism products to overcome their mere dependence on built heritage. Copyright © 2015 John Wiley & Sons, Ltd. 相似文献
103.
Jose Antonio Candeias Bonito Filipe Manuel Alberto Martins Ferreira Manuel Francisco Pacheco Coelho Maria Isabel Cravelro Pedro 《美中经济评论(英文版)》2010,9(3):15-23
This work intends to present chaos theory (and dynamical systems such as the theories of complexity), in terms of interpretation of ecological phenomena. The chaos theory applied in the context of ecological systems, especially in the context of fisheries has allowed the recognition of the relevance of this kind of theories to explain fishing phenomena and fisheries policies. It has permitted new advances in the study of marine systems, contributing to the preservation of fish stocks. This paper deals with the way how to manage fisheries taking chaos in account of the problem. 相似文献
104.
105.
There is an ongoing debate among researchers and policy makers, whether informal sector employment is a result of competitive market forces or labor market segmentation. More recently it has been argued that none of the two theories sufficiently explains informal employment, but that the informal sector shows a heterogenous structure. For some workers the informal sector is an attractive employment opportunity, whereas for others - rationed out of the formal sector - the informal sector is a strategy of last resort. To test the empirical relevance of this hypothesis we formulate an econometric model which allows for several unobserved segments within the informal sector and apply it to the urban labor market in Côte d'Ivoire. 相似文献
106.
Dynamic representation of spot and three‐month aluminum and copper volatilities is considered. Aluminum and copper are the two most important metals traded in the London Metal Exchange. They share common business cycle factors and are traded under identical contract specifications. The bivariate FIGARCH model, which allows parsimonious representation of long memory volatility processes, is applied. The results show that spot and three‐month aluminum and copper volatilities follow long memory processes, that they exhibit a common degree of fractional integration and that the processes are symmetric. However, there is no evidence that the processes are fractionally cointegrated. This high degree of commonality may result from the common LME trading process. © 2008 Wiley Periodicals, Inc. Jrl Fut Mark 28:935–962, 2008 相似文献
107.
Francisco Pablo Holgado–Tello Salvador Chacón–Moscoso Isabel Barbero–García Enrique Vila–Abad 《Quality and Quantity》2010,44(1):153-166
Given that the use of Likert scales is increasingly common in the field of social research it is necessary to determine which
methodology is the most suitable for analysing the data obtained; although, given the categorization of these scales, the
results should be treated as ordinal data it is often the case that they are analysed using techniques designed for cardinal
measures. One of the most widely used techniques for studying the construct validity of data is factor analysis, whether exploratory
or confirmatory, and this method uses correlation matrices (generally Pearson) to obtain factor solutions. In this context,
and by means of simulation studies, we aim to illustrate the advantages of using polychoric rather than Pearson correlations,
taking into account that the latter require quantitative variables measured in intervals, and that the relationship between
these variables has to be monotonic. The results show that the solutions obtained using polychoric correlations provide a
more accurate reproduction of the measurement model used to generate the data. 相似文献
108.
Isabel Pardo 《International Advances in Economic Research》2006,12(4):491-497
In the beginning, the economy was closed to ethics and as a social science had a moral dimension. However, after the marginal revolution and during the twentieth century, ethics was not considered in the economic analysis. Fortunately, this situation changed at the end of the past century. This paper analyzes the ethics of regional policy. Regional policy has an ethics dimension because its main goals are to reduce the differences among regions and to redistribute income. The objective of this paper is to analyze the relationship between regional policy and ethics, considering both targets and instruments. We will consider, mainly, the case of the European Union. 相似文献
109.
Lars P. Feld Christoph M. Schmidt Isabel Schnabel Volker Wieland 《Wirtschaftsdienst》2017,97(7):477-483
The newly elected French president Macron now faces the challenge of reforming the French economy by increasing its competitiveness in order to decrease unemployment and to open new perspectives for a more prosperous economic future. The success of this endeavour is also of the utmost importance for Germany. The best support that Germany can offer to support French reforms consists of promoting the European integration process based on the subsidiarity principle. This can only be achieved by maintaining a balance between national responsibility and joint action and by choosing the right sequence of reform steps. 相似文献
110.
Dissatisfied customers due to a service failure probably will switch the provider, will complain and/or will spread negative word-of-mouth. However, to what extent some specific emotions triggered by dissatisfaction can mediate between the latter and the previous mentioned behaviours? A sample of 359 users of restaurants and 308 users of hotel services has shown that, whereas anger has a significant influence on the three behaviours under study, regret only affects switching and negative word-of-mouth. Furthermore, slight differences between hotels and restaurants have been found because, in the case of restaurants, anger is not an antecedent of switching whereas regret has an inverse effect on complaining. 相似文献