The purpose of this research is to discover how paid blog advertisements influence consumer attitudes toward bloggers and the products they advertise will help marketers gain an understanding of how to use bloggers as paid sponsors to influence consumer purchase intent. Using online survey approach, the study recruited 280 participants through an online survey platform. Participants answered questions about their attitudes toward bloggers and their advertising when purchasing products. Furthermore, participants also answered questions about their perceived trust in the bloggers themselves as well as the authenticity and credibility of the brand-related communication received from bloggers. Moreover, they reported on their attitudes towards how deceptive they considered bloggers and their advertising to be. Finally, participants reported how paid blog ad-vertisements influence their purchase intent. The results indicated that the similarity between the consumer and the ad creator was an important psychological reason on why consumers were more likely to perceive ad-vertisements as more authentic, more affective, less deceptive and more credible, and they were thus more likely to trust the blogger. On the other hand, the importance of ad attribute (authenticity) does significantly influence consumers’ intention to purchase products advertised by a blogger. As consumers are becoming more skeptical of advertisements, blogs need to be entertaining and a pleasure to view. Not only does the con-tent need to be interesting, but also the design, flow and clarity of the blogs must also be considered important factors. In addition, advertising needs to be believable, credible and honest. In the online world, trust and credibility are still paramount in attracting consumers’ engagement; hence, promoting companies’ products and services through blogs can be an effective strategy to lower consumer skepticism barriers.

Presently, different kinds of sampling methods are used to collect consumer data for research in the coffee business, depending on topic, goal and budget. However, what survey method is capable of generating data that does represent the entire population is questionable. By comparing these surveys – one online, one face to face interviews and the other telephone surveys – this study aims to determine the differences between these sampling methods and determine the most effective methods in coffee consumer. Face-to-face surveys with 130 respondents and a telephone survey with 130 respondents are compared with telephone surveys with 130 sampling using identical questions when the total of respondents is 500 and 390 are valid. With regard to consumer behavioral characteristics, telephone data yielded the best results, followed by online quota survey and finally face to face interviews. Telephone surveys can be a good sampling method so the authors recommend using it for a larger sample.

This study aims to investigate the relationship among performance risk, safety risk, social risk, psychological risk, satisfaction, and intention to use Grab in Vietnam. Validated measurements were identified from a literature review. A convenience sample of 276 respondents was collected through online and offline survey. It was then analyzed by using SPSS and AMOS software. A reliability test, EFA, CFA and SEM were implemented. The results of this study indicate a negative relationship between safety risk and satisfaction and intention to use Grab cars. In addition, passengers’ satisfaction influenced intentions to use Grab cars. However, performance risk and social risk show no effect on satisfaction and intentions to use Grab service. The main contribution of this study is to create a framework of the effect of perceived risk types on intention to use Grab cars. The users care about their own safety and information security. In addition, the issue of said psychological risk is important because consumers are concerned about health and infectious diseases.

The purpose of this study was to test the determinants affecting the credibility of online reviews. In this model, the relationships between argument quality and peripheral cue and credibility of online reviews were evaluated. The measurement model and the conceptual model depicting hypothesized relationships were evaluated based on responses from 460 customers using multiple linear regression analysis, accordingly. After the data collection process was completed, all data were put into SPSS 20. The process of checking and analyzing the data sequentially follows: reliability test, EFA factor analysis, Correlation analysis and Multiple linear regression analysis. Initially, the scale was assessed by Cronbach's Alpha and EFA. Then, the correlation coefficient test was used to check the linear relationship between the independent and dependent variables. The results from the study indicated the accuracy, completeness, review quantity, review consistency, product/ service rating, and website reputation were accepted and all of them had positive effects on review credibility. This shows, shoppers are very interested in completeness, the full information as well as necessary evidence to help shoppers assess the truthfulness and accuracy of the information more easily. At the same time, the website reputation also helps increase the credibility of the reviews and buyers tend to believe in online reviews if the website has a good reputation. Basically, the research completed its original purpose of identifying factors that affect the credibility of online reviews.