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The use of celebrity as spokespeople for companies continues to be a popular method of advertising. The reason behind the popularity of celebrity advertising is the advertiser's belief that messages delivered by well-known personalities achieve a high degree of attention and recall for some consumer. The present study assesses the impact of dimension's source credibility on Yemeni consumer's attitude towards advertisement (Aad), the effect of (Aad) on consumer's attitude toward brand (Ab), the impact of (Ab) on consumer's purchase intention (PI) and explores the mediating role of (Ab) between (Aad) and (PI). This study will use the elaboration likelihood model (ELM) and theory of dual mediating hypotheses (DMH) as predicators to explain the relationship between variables. We surveyed 400 Yemeni male consumers who viewed a real advertisement. They rated the credibility of the endorser, attitude towards advertisement, attitude towards brand, and purchase intention. Path analysis confirmed that endorser attractiveness had strongest impact on (Aad) more than endorser expertise. It found also, (Ab) is considered to be a partial mediator between (Aad) and (PI) relationship.

The use of positive corporate image by companies continues to be a popular method to support the customer satisfaction, and to encourage his/her trust on the company, and lead the customer to own more positive word of mouth about the company and its brand. When the customers have the positive corporate image they focus on aspects of a company, in addition, they usually express it by using the positive words of mouth, and which in turn is considered the goal of any company. The reason that lies behind using corporate image is its direct and indirect strong impacts that build customer satisfaction and makes customers more trust to speak positively about the company. This theoretical paper develops a conceptual framework that explains how independent variable (corporate image) effects on dependent variable which is called word of mouth when trust and customer satisfaction are mediating. A study carried out in Saudi Arabia using 150 respondents as consumers who used any kinds of car service. Path analysis confirmed that, corporate image had positive impact on customers' satisfaction and trust. In addition, the study illustrated that customer's trust had greater positive impact on customer's word of mouth than customer's satisfaction.

An endorser or a spokesperson is frequently used by marketers in their product advertisements as a credible source that is hoped to influence the attitude of consumers in the marketplace toward the shown advertisement, the brand and most importantly their purchase intentions. Corporate credibility C/C -the reputation of a company for honesty and expertise is another type of source credibility that is said to influence consumers' reaction to the shown product advertisements and shape their attitudes to brands. The present study assessed the impact of both source credibility (corporate credibility (C/C) and endorser credibility En/C) on Saudi consumers' attitude toward advertising (Aad), attitude toward brand (Ab), and purchase intention (PI) when brand familiarity is tested. A study carried out in Saudi Arabia using 150 respondents as consumers who used cover head product of (AL-Bassam). Path analysis confirmed that, attractiveness of endorser had strengthened impact on (Aad), then expertise, while no effect for endorser trustworthiness on (Aad). While trustworthiness is significant in all C/C relations with the other variables (i.e. Aad, Ab and PI), there is no effect for PAB on relationship between (Aad) and (Ab).Originality/value -In this study, the said relationships amongst the six variables are revisited. The difference lie in the use of Saudi consumers, a developing country compared to developed countries in past studies, in addition to the use of a real advertisement including (product, endorser and company) rather than make believe advertisement. This will provide the first insight on Saudi consumer's behaviour.Paper type -research paper

Brand equity is an important issue in marketing construct, which has been shown to influence important marketing variables such as consumer's choice. The aim of this study is to explore the role of independent variables e.g. (brand image and corporate branding) on brand equity and the impact of brand equity on consumer's choice. When the customers own positive aspects of a company and its product e.g. brand image, corporate branding they usually form brand equity and this lead them to have a choice from the products and services of the company. This study develops a framework that explains how independent variables e.g. (brand image and corporate branding) effect on dependent variable which is called consumer's choice, when brand equity is mediating. A study carried out in Saudi Arabia using 105 respondents as consumers who used any type of smart mobile phone. Path analysis confirmed that, corporate brand had more positive impact on brand equity while the results showed that brand image had no impact on brand equity. In addition, the study illustrated that brand equity had positive impact on customer's choice.