rather than on information providers or opinion givers (Bronner and de Hoog, 2011, Liang et
al., 2013). This paper aims to fill this gap to some extent by focusing on the latter and
investigating the drivers of the intention to share experiences online. Such an understanding is
vital for the tourism industry in order to increase the proportion of opinion givers among
tourists (N'Goala and Morrongiello, 2014). The theory of planned behavior will be used as a
framework to investigate four major antecedents of the intention to share experiences online,
i.e.: (1) consumers’ attitude towards opinion sharing on a peer-to-peer platform, (2) subjective
norms, (3) consumers’ perceived self-efficacy, and (4) perceived ease of use.
Literature review
Previous studies show that word-of-mouth significantly influences consumer purchases
of goods and services, and e-WOM is a form of this communication (Engel et al., 1969, Katz
and Lazarsfeld, 1955). According to Litvin et al. (2008), e-WOM includes both conversations
between firms and customers, and conversations among consumers themselves. E-WOM can
be characterized by two dimensions: the communication scope and the level of interactivity
(Litvin et al., 2008). It means that e-WOM can take the form of a one-to-one conversation (i.e.
emails), a one-to-many (i.e. review sites), or a many-to-many conversation (i.e. virtual
communities). Furthermore, e-WOM can be asynchronous, which implies a low level of
interactivity (i.e. emails, review sites, blogs) or synchronous, which means a high level of
interactivity (i.e. chatrooms, instant messaging).
Existing academic research has primarily considered readers and the few studies
focusing on opinion givers devote their attention to the antecedents of e-WOM related to the
service experience such as customer satisfaction (Liang et al., 2013, Yang, 2013), service
quality (Jeong and Jang, 2011), atmosphere (Jeong and Jang, 2011), price fairness (Jeong and
Jang, 2011). Other studies focus on the motives for sharing experience such as egoism (Yang,
2013, Cheung and Lee, 2012), altruism(N'Goala and Morrongiello, 2014, Cheung and Lee,
2012), social benefits (Yap et al., 2013), exerting power (N'Goala and Morrongiello, 2014),
revenge (N'Goala and Morrongiello, 2014), or helping the company (N'Goala and
Morrongiello, 2014). However, most of the variance of customers’ (intention to) use e-WOM
communication remains unexplained (Liang et al., 2013, N'Goala and Morrongiello, 2014).
This suggests that the drivers of e-WOM in the tourism sector may not only be related to the
service experience itself.
Given e-WOM’s ability to strongly affect the performance of firms, especially in the
tourism sector, researchers are increasingly studying e-WOM in this context (Cantallops and
Salvi, 2014). For example, Bronner and de Hoog (2011) aim to understand what kind of
vacationers post their opinion on review sites, with which motivations, on what kind of
websites, and what are the message characteristics. Many researchers, including N'Goala and
Morrongiello (2014), Cantallops and Salvi (2014), and Casaló et al. (2010) focus on the
motivations for travelers to actively engage in WOM and to share their experience about a
stay or a flight with other consumers. Then, Litvin et al. (2008) study the phenomenon of
interpersonal influence and WOM in tourism and hospitality, and suggest strategies to manage
e-WOM in this sector. A final example is related to Ye et al. (2009)’s research, which aims at
quantifying the impact of e-WOM on the booking of hotel rooms.
Hypotheses
The theory of planned behavior (Ajzen, 1991) suggests two major antecedents to the
individual’s intention to perform a particular behavior: (1) attitude towards the behavior and
(2) subjective norms. Attitude towards the behavior is defined as “the degree to which a