Received: 08 March, 2020
Accepted: 01 June, 2020
YouTube creates valuable social media opportunities in eWOM content. Individuals currently discuss products and other matters with their friends and new acquaintances over the internet. The purpose of this study was to determine the effect of YouTube eWOM conversations on consumer buying interest. Based on the Information Adoption Model (AIM) and the Theory of Reasoned Action (TRAM), we developed a new conceptual model: The Information Acceptance Model (IACM). In this quantitative study, the population under analysis, composed of followers of a YouTube channel, was selected using purposive sampling so that the number of respondents was 200. We implemented data analysis techniques using the Structural Equation Model with Lisrel. The results show that information quality, information credibility, information needs, information usefulness, information adoption, and attitude towards information influence consumer buying interest.
Keywords: e-WOM, YouTube, Consumer Buying Interest.
JEL Classification: L66, L82, M31, M32.
YouTube crea oportunidades valiosas para las redes sociales con el boca a boca electrónico (eWOM en inglés). Las personas ahora hablan de productos y otros asuntos con sus amigos y nuevos conocidos en internet. El objetivo de este estudio es determinar el efecto del boca a boca electrónico en conversaciones en YouTube sobre el interés de compra de los consumidores. Basado en el Modelo de Adopción de Información y la Teoría de la Acción Razonada, se desarrolló el Modelo de Aceptación de Información. El método de esta investigación fue de carácter cuantitativo. La población analizada estuvo compuesta por los seguidores de un canal de YouTube y se seleccionó usando muestreo intencional. Se implementaron técnicas de análisis de datos usando el Modelo de Ecuaciones Estructurales del paquete Lisrel. Los resultados muestran que la calidad, credibilidad, necesidad, utilidad y adopción de la información, así como la actitud hacia la misma, influencian el interés de compra de los consumidores.
Palabras clave: eWOM, YouTube, interés de compra.
Clasificación JEL: L66, L82, M31, M32.
Electronic Word of Mouth (eWOM) has long been considered an influential marketing instrument (
YouTube’s social media platform, a relatively new eWOM, has brought a new aspect to eWOM that allows users to communicate with their network (
YouTube allows individuals from all over the world to interact, collaborate, and share content in the form of words, images, videos, or sounds that present ideas, opinions, and testimonials about their experiences (
Specifically, the IACM tests quality, credibility, usefulness and adoption of information, information needs, and attitudes towards information as the main precursors of buying interest. These results provide theoretical insights about eWOM on YouTube and contribute the models presented here to the literature. On the managerial side, understanding that the determinants of eWOM information on YouTube influence consumer buying interests can help marketers utilize eWOM in their digital marketing activities. The importance of YouTube for consumer buying interest was pointed out by
The credibility and popularity of content about a product can be measured by the number of posted comments, which can influence purchase intentions (
The Information Adoption Model has four components: argument quality (central route), source credibility (peripheral route), usefulness of information, and adoption of information. With this integration, IAM can explain how people are affected by information on a computer-mediated communication platform. The Theory of Reasoned Action connects beliefs, attitudes, intentions, and behavior. Willingness is the best predictor of behavior, which means that the best way to know what someone will do is to know that person’s willingness. However, one can make judgments based on completely different reasons (not always on willingness). An important concept in this theory is the focus of attention (salience), that is, considering that something is important. Intention is determined by subjective attitudes and norms (
Buying interest
The interest in buying something, a psychological attraction that exists in an individual’s mind, has an impact on taking action (
Research hypothesis
eWOM information has become an important factor in shaping consumer behavior. Reviews by other consumers shared in a review platform can influence consumer buying interest
H1. The adoption of eWOM information positively influences consumer buying interest.
Social media users, intentionally or unintentionally, are exposed to a huge amount of eWOM information, and previous studies have found such eWOM information to influence consumers’ purchase intentions (
H2. Information usefulness positively influences the adoption of eWOM information.
Information usefulness and information adoption, Information usefulness refers to individuals’ perception that using new information will improve their performance (
H3. The quality of eWOM information positively influences the usefulness of eWOM information.
The quality and credibility of information has now become more critical (
H4. The credibility of eWOM information positively influences the usefulness of eWOM information.
In addition, previous research shows the relationship between information credibility, consumer purchase intentions (
H5. The need for eWOM information positively influences the usefulness of eWOM information.
Information needs have mainly been studied as motivators of Word of Mouth (WOM) involvement (
H6. Attitudes towards eWOM information positively affect the usefulness of eWOM information.
Attitude towards information is another dependent variable that we added after considering the TRA (
H7. Attitudes toward eWOM information have a positive effect on consumer buying interest.
In addition to the TRA, two more theories, the Theory of Planned Behaviour (TPB) (
This study applied a deductive quantitative method to answer research questions, derived from concepts or theories, that were formulated as hypotheses. We adopted a quantitative approach by using online questionnaires to explore the effects of YouTube eWOM on consumer buying interest and identify the factors influencing this relationship. The model introduced in this study, named the Information Acceptance Model (IACM), shows that the influence of eWOM on social media depends not only on the characteristics of eWOM information (such as quality and credibility) but also on consumers’ attitude towards eWOM information. The IACM expands the notion of information adoption by including consumer behavior, and it explains how this process influences behavioral intention. In this study, the IACM examines the relationships between several variables: information quality, information credibility, information needs, attitude towards information, information usefulness, information adoption, and purchase intention.
The data was obtained by a survey method, collected from answered questionnaires. The latter were distributed among YouTube users. Secondary data were gathered from a review of literature related to this study. In this study, the universe included all the subscribers to the channel DURIAN TRAVELER on YouTube. We used purposive sampling with a sampling criterion: being subscribed to said channel. The sample was selected to meet the requirement established by
Analysis of Respondents’ Demographic Differences
An analysis of respondents’ demographic differences (sex, age, educational attainment, and income) was carried out to determine whether there were significant differences in each variable. The following table (see Table 1) analyzes respondent’s profiles.
Demographic
variable |
Classification |
Total
(respondents) |
Percentage |
Gender | Male | 192 | 96 % |
Female | 8 | 4 % | |
Age | 17–26 | 10 | 5 % |
27–36 | 91 | 45.5 % | |
37–46 | 69 | 34.5 % | |
Ø 46+ | 30 | 15 % | |
Work | Civil servant | 10 | 5 % |
Private Employee | 91 | 45.5 % | |
Entrepreneur | 69 | 34.5 % | |
Student | 30 | 15 % | |
Montly Expenditure | < Rp 1.000.000 | 8 | 4 % |
Rp 1.000.001 – Rp 3.000.000 | 16 | 8 % | |
Rp 3.000.001 – Rp 5.000.000 | 59 | 29.5 % | |
>Rp 5.000.001 | 117 | 58.5 % | |
Duration Recognize | 0–6 months | 15 | 7.5 % |
6 month- 1 year | 61 | 30.5 % | |
>1 year | 124 | 62 % | |
Number of Purchase | Once | 102 | 51 % |
2–3 times | 53 | 26.5 % | |
> 3 times | 45 | 22.5 % |
Validity and Reliability
The results of construct validity show that all the determinants of the variable can be accepted because the factor loading value is high enough (> 0.50) and the t-value is greater than that of the t-table (1.96) at a 5 % significance level, except for the variable information quality, whose loading factor is 0.23 (<0.50) and its t-value is 2.74.
Furthermore, the construct reliability test meets the requirements, with construct reliability (CR) values above 0.60 and VE values above 0.50 (Hair, et al., 2013). All the construct reliability (CR) values meet the reliability requirement (above 0.60), and all the VE values do so as well (above 0.50), except for the variable information quality, with a value of VE 0.39 (<0.50) and attitude variables related to information with a VE value of 0.44 (<0.50).
Analysis of the Models
The analysis of all the validity tests (including the Chi-squared, ECVI, AIC and CAIC, Fit Index, and Goodness of Fit) showed good compatibility. There are close fit results with Root Mean Square Error of Approximation (RMSEA). From the results of the analysis above, it can be concluded that the fit test of all the models meets the requirements (good fit and close fit). Furthermore, in this study, we calculated the t-values in the following path diagram (see Figure 1).
The models were analyzed to identify the indicators (observed variables) of each construct and calculate their reliability value. The validity of the indicators used to measure the construct of the model can be seen in the figure above. The indicator that is used must have a t-value greater than 1.96, and the value of the standard factor should be greater or equal to 0.5 (
The results of the structural equation model show that both the characteristics of eWOM information and consumer behavior towards eWOM information have a positive impact on consumer buying interest. All the hypotheses between information quality, information credibility, information needs, attitudes towards information, usefulness of information, adoption of information, and buying interest have an effect, except between quality of information and benefits of information and attitude towards information and benefits of information.
Information quality did not have an effect on information usefulness, maybe because of the noise (interference) in communication. Noise can obscure the information received by both resenders and official recipients (Loudon & Della, 1988 in
Other results show that information credibility has a positive effect on information usefulness. The results of this study prove that DURIAN TRAVELER, as a community of durian lovers on YouTube, always provides information from credible sources for its readers. Source credibility refers to the credibility a person perceives in an information source, regardless of the type of information. Even though source credibility is not related to the information itself, it can influence customers’ perception of the information’s usefulness (
Furthermore, information usefulness also significantly influences information adoption, as suggested by the IAM (
These results prove that the research model is significant for ewom in social media. Information needs and attitudes towards information are also among the determinants of eWOM in social media that affect consumer buying interest. This result is in line with other previous studies (
This study proposed a research model called Information Acceptance Model (IACM) to test the effect of YouTube eWOM on consumer buying interest. The IACM indicated that the influence of YouTube eWOM information does not only depend on its characteristics (such as quality and credibility) but also on consumer behavior towards eWOM information. This model was validated using a survey answered by 200 respondents who watched the YouTube channel DURIAN TRAVELER; nevertheless, information quality did not have a significant effect on information benefits. The results reveal several theoretical and managerial implications. However, the main contribution of this study is developing a comprehensive conceptual model that examines the determinants of YouTube eWOM information that affect consumer buying interest. This model was developed based on the integration of the IAM and TRA-related components.
The IAM explains the characteristics of eWOM information (
We thank the Ministry of Research and Higher Education of the Government of Indonesia for funding this research project. We are also grateful to the anonymous peer reviewers who helped us improve the manuscript.