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Empirical election studies conclude that party elites' images with respect to competence, integrity and party unity -- attributes that we label character-based valence -- affect their electoral support (Stone and Simas, 2010). We compile observations of media reports pertaining to governing party elites' character-based valence attributes, and we relate the content of these reports to mass support for the governing parties. We present pooled, time-series, analyses of party support and valence-related media reports in six European polities which suggest that these reports exert powerful electoral effects during election campaigns but little effect during off-election periods. This finding, which we label the Election Period Valence Effect, is consistent with previous work concluding that citizens are also more attentive to policy-based considerations and to national economic conditions around the time of elections. These findings have implications for political representation and for understanding election outcomes. [Reprinted by permission of Sage Publications Ltd., copyright holder.]

AbstractInternational Trade Law is a juridical subject presenting certain particularities since theanalysis of the institutions of international trade law cannot be separated from theeconomical, political, social, geostrategic aspects, from the ones related to the sustainabledevelopment, even to the declaration of certain spaces as the common patrimony of humanity,as it is, at the same time, a subject having a continuous and ample evolution. Internationaltrade constitutes the object of this juridical matter containing norms of intern law, byorganizing and regulating the foreign trade of every state, conflict norms applicable to thejuridical reports of foreign trade and norms of international public law applicable to thecommercial relations between the states. In this light, international trade law is aninterdisciplinary juridical subject with different regulations. This paper wants to present themultidisciplinary valences of international trade law, in report to the juridical normsconstituting the content of this subject.

International audience ; Spatial models of voting have dominated mathematical political theory since the seminal work of Downs. The Downsian model assumes that each elector votes on the basis of his utility function which depends only on the distance between his preferred policy platform and the ones proposed by candidates. A succession of papers introduces valence issues into the model, i.e., candidates' characteristics which are independent of the platforms they propose. So far, little is known about which of the existing utility functions used in valence models is the most empirically founded. Using a large survey run prior to the 2007 French presidential election, we evaluate and compare several spatial voting models with valence. Existing models perform poorly in fitting the data. However, strong empirical regularities emerge. This leads us to a new model of valence that we call the intensity valence model. This new model makes sense theoretically and is grounded empirically.

International audience ; Spatial models of voting have dominated mathematical political theory since the seminal work of Downs. The Downsian model assumes that each elector votes on the basis of his utility function which depends only on the distance between his preferred policy platform and the ones proposed by candidates. A succession of papers introduces valence issues into the model, i.e., candidates' characteristics which are independent of the platforms they propose. So far, little is known about which of the existing utility functions used in valence models is the most empirically founded. Using a large survey run prior to the 2007 French presidential election, we evaluate and compare several spatial voting models with valence. Existing models perform poorly in fitting the data. However, strong empirical regularities emerge. This leads us to a new model of valence that we call the intensity valence model. This new model makes sense theoretically and is grounded empirically.

International audience ; Spatial models of voting have dominated mathematical political theory since the seminal work of Downs. The Downsian model assumes that each elector votes on the basis of his utility function which depends only on the distance between his preferred policy platform and the ones proposed by candidates. A succession of papers introduces valence issues into the model, i.e., candidates' characteristics which are independent of the platforms they propose. So far, little is known about which of the existing utility functions used in valence models is the most empirically founded. Using a large survey run prior to the 2007 French presidential election, we evaluate and compare several spatial voting models with valence. Existing models perform poorly in fitting the data. However, strong empirical regularities emerge. This leads us to a new model of valence that we call the intensity valence model. This new model makes sense theoretically and is grounded empirically.

International audience ; Spatial models of voting have dominated mathematical political theory since the seminal work of Downs. The Downsian model assumes that each elector votes on the basis of his utility function which depends only on the distance between his preferred policy platform and the ones proposed by candidates. A succession of papers introduces valence issues into the model, i.e., candidates' characteristics which are independent of the platforms they propose. So far, little is known about which of the existing utility functions used in valence models is the most empirically founded. Using a large survey run prior to the 2007 French presidential election, we evaluate and compare several spatial voting models with valence. Existing models perform poorly in fitting the data. However, strong empirical regularities emerge. This leads us to a new model of valence that we call the intensity valence model. This new model makes sense theoretically and is grounded empirically.

International audience ; Spatial models of voting have dominated mathematical political theory since the seminal work of Downs. The Downsian model assumes that each elector votes on the basis of his utility function which depends only on the distance between his preferred policy platform and the ones proposed by candidates. A succession of papers introduces valence issues into the model, i.e., candidates' characteristics which are independent of the platforms they propose. So far, little is known about which of the existing utility functions used in valence models is the most empirically founded. Using a large survey run prior to the 2007 French presidential election, we evaluate and compare several spatial voting models with valence. Existing models perform poorly in fitting the data. However, strong empirical regularities emerge. This leads us to a new model of valence that we call the intensity valence model. This new model makes sense theoretically and is grounded empirically.

International audience ; Spatial models of voting have dominated mathematical political theory since the seminal work of Downs. The Downsian model assumes that each elector votes on the basis of his utility function which depends only on the distance between his preferred policy platform and the ones proposed by candidates. A succession of papers introduces valence issues into the model, i.e., candidates' characteristics which are independent of the platforms they propose. So far, little is known about which of the existing utility functions used in valence models is the most empirically founded. Using a large survey run prior to the 2007 French presidential election, we evaluate and compare several spatial voting models with valence. Existing models perform poorly in fitting the data. However, strong empirical regularities emerge. This leads us to a new model of valence that we call the intensity valence model. This new model makes sense theoretically and is grounded empirically.

International audience ; Spatial models of voting have dominated mathematical political theory since the seminal work of Downs. The Downsian model assumes that each elector votes on the basis of his utility function which depends only on the distance between his preferred policy platform and the ones proposed by candidates. A succession of papers introduces valence issues into the model, i.e., candidates' characteristics which are independent of the platforms they propose. So far, little is known about which of the existing utility functions used in valence models is the most empirically founded. Using a large survey run prior to the 2007 French presidential election, we evaluate and compare several spatial voting models with valence. Existing models perform poorly in fitting the data. However, strong empirical regularities emerge. This leads us to a new model of valence that we call the intensity valence model. This new model makes sense theoretically and is grounded empirically.

Purpose
New research emphasizes the importance of social communications in e-commerce purchase decision-making processes but there are many technical and social challenges such as multi-faceted trust concerns. How consumers view and value referent's online testimonials, ratings, rants and raves, and product usage experiences remain an important factor that needs to be better understood. Social commerce as a relatively new stream in e-commerce yet is growing fast and gaining the attention of scholars and practitioners, especially due to recent revenue developments. Consistent with e-commerce websites that do not enable consumer feedback, trust is a challenging matter for consumers to consider when they visit social commerce websites. Researching trust models and influences is increasingly important especially with the proliferation of online word of mouth (WOM) strongly effecting many consumers at many different phases of social commerce purchase decision making and transacting. The paper aims to discuss this issue.


Design/methodology/approach
This study examines the effects and importance of institution-based trust and WOM within a model of consumer behaviour on social commerce websites. This research examines how trust and consumer feedback may affect consumers' purchase intentions. This study collects data from the little-understood market of urban Iran and develops a research model to examine consumers' purchase intentions on social commerce websites. A robust data set from urban Iran (n=512) is analyzed using partial least squares regression to analyze the proposed model.


Findings
The results of the analysis show that institution-based trust influences social media communication, leading to elevated purchase intention on social commerce websites. This research adds to the prior literature that espouses on the importance of consumers developing strong beliefs of vendor trust in social commerce platforms.


Originality/value
Explaining how consumer purchase decision making is effected by using institution-based trust and electronic WOM in a little understood Middle Eastern context an important contribution of this research. Suggestions on practical and theoretical developments of this research in the sharing commerce research stream conclude this paper.

AbstractTo the degree that voters care about competence, expertise, and other valence characteristics of their representatives and political parties care about winning elections, parties have an incentive to signal that their legislators have such characteristics. We construct a model of parties, motivated by both reelection and by policy, that attempt to signal individual incumbents' valences to voters through the assignment of these members to positions of authority. The model illustrates how electorally motivated party leaders will have an incentive to promote less competent incumbents than they would if voters did not make inferences from promotion decisions. We derive the model's empirical implications and test them with original data on the careers of Chilean senators serving between 1998 and 2013. In support of the model's insights, we find that promotion to a leadership position is an effective signal to voters only if the promoted incumbent has extreme views relative to the party.