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The aim of this study was to investigate the effect of enamel plate on the frequency variation of theta, alpha and beta brain waves, with emphasis on gender factor as a demographic variable, to answer to following question: How is a cultural luxury item like a enamel plate changing in the comparison between males and females, considering bioelectric activity of the cerebral cortex is affected by the color element. This study is an applied research with semi-experimental design.
Electroencephalography was recorded in two regions of F3 and F4 in a commercial video of an enamel plate in four colors, blue, yellow, green and red; and in two groups of males and females. The data was recorded using Biofeedback System 2000 of the Sheffield Corporation during the commercial video demonstration. EEG data were processed using MATLAB software 2018 and statistical comparison was performed using SPSS software version 20 using multivariate analysis of variance analysis. Results showed that the color factor had no significant effect on the power of theta, alpha and beta band frequency. In contrast, the effect of gender was significant and the brain electroencephalography pattern of the participants without color was different in both males and females. The normalized electroencephalographic power of women in all colors was higher than mens’. Therefore, in a cultural luxury product, color cannot have a different effect on the electroencephalogram pattern of the frontal lobe of ​​women and men, but the female cortex is more active than men when processing different colors.

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Today, more than ever, consumers are searching for authenticity. One of the valuable features of brand authenticity is that consumers are willing to pay primum price for products that they think are authentic. Authenticity has emerged as a consumer favorite feature that reflects a brand's sense of uniqueness, realism, or originality, helping marketers differentiate their brands from competitors. The present study examines the antecedents of brand authenticity and its impact on word of mouth (WOM). Consumers of Tavazeh nuts brand in Tehran constitute the statistical population of this research. 372 people were selected as the sample by available sampling method. Data were collected through a standard questionnaire. The reliability of the questionnaire was assessed by calculating Cronbach's alpha coefficient and its validity was assessed by first-order and second-order confirmatory factor analysis (CFA). SPSS24 software was used for descriptive statistics and structural equation modeling (SEM) with LISREL 8.8 software was used to test the hypotheses. The results of testing the hypotheses showed that brand nostalgia, brand heritage, brand legitimacy and brand clarity have a positive and significant effect on brand authenticity. Also, brand authenticity has a positive and significant effect on word of mouth (WOM).

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In B2C models of e-commerce, customer trust is considered as one of the key factors of successfulness, and many scholars believe that the success factor in e-commerce is establishment and implementation of a safe and reliable purchasing process for the customers. The aim of this research was to study the effective factors on customer trust in e-commerce. To do so, the research hypotheses were developed to examine individual, company and infrastructural variables. Statistical population of this research was the customers, who had the experience of e - purchasing from the e-stores of “Iranian virtual community”. As the results of data analysis showed, the cooperative and infrastructural variables had positive influence on customer trust but individual variables had no positive influence on customer trust.

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Shopping in the general sense is ambiguous, it is both work, leisure and entertainment and it is an activity that oscillates between private life and privacy with social dimensions and in the tension between rationality and lust and a pleasant social form with necessary and obligatory activity. The aim of this study is to systematically study the research literature in the field of comparative comparison of shopping motivation studies, identify research gaps and propose suggestions accordingly. To this end, it seeks to answer the question of what are the strengths and weaknesses of existing domestic and foreign scientific articles in the field of shopping motivations in terms of problematics, theory and methodology. The method of this research was a systematic literature review of Latin and Persian articles in the field of studies related to shopping motivations. Articles found in 2001-2020 for Latin articles. By examining the keywords in the databases of this field and based on pre-determined criteria, appropriate articles were selected and analyzed. During the study of the dimensions of the studied articles, it can be stated that lack of attention to problematics, lack of various methodologies, dominance of positivist approach and lack of attention to interpretive paradigms and critical realism, lack of clear theoretical foundations and lack of attention to basic theories and related to the concepts of hedonic and utilitarian shopping motives are very evident. At the end of the research, based on the results of a systematic literature review is presented a model of purchasing motivation.