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Purpose – Various studies dealing with brand orientation were analysed to discuss how the issues identi ﬁ ed in this area have been relating over time. This paper aims to identify the key studies, the keywords used andtheoriginof thestudies. Design/methodology/approach – A systematic literature review (SLR) was performed within the Scopus database to selectandsummarize thestudies thatdeal with brand orientation. Finally, 90 articles were subjected to bibliometric analysis. Findings – Five major research areas were identi ﬁ ed (brand orientation concept, hybrid strategies, internal branding management, brandperformance andperceivedbrandorientation)anddiscussed. and Research limitations/implications – As the main theoretical contribution, the results showed a focus on research in ﬁ ve areas: the development of the brand orientation concept and proposed extensions; hybrid strategies; the relations between brand orientation, internal branding and brand management; the relation between brand orientation and ﬁ nancial performance; and the perceived brand orientation, mostly applied to highereducation sector. Originality/value – The study offers a general overview of brand orientation, identifying relations on topics of interest, main keywords and sub-themes in this ﬁ eld. The results contribute to ful ﬁ lling the research gap about the relationship between all these aspects. Finally, an agenda for future research is proposed.


Introduction
The representativeness of a brand and its relevance can be, along with other aspects, translated into consumer loyalty and consumer willingness to pay a premium price, so that the strengthening of the brand can revert to financial performance gains (Fischer et al., 2010;Simon and Sullivan, 1993). Thus, in the twentieth century, a new organizational strategy of brand orientation was theorized, taking the focus of the company from just meeting the needs of customers to creating a strategic meaning for the brand (Urde, 1999). Since then, studies in this area have evolved from the discussion about brand orientation to the analysis of its importance in companies (Anees-ur-Rehman et al., 2016).
For Urde (1994Urde ( , 1999, a brand-oriented company focuses on creating, developing and protecting brand identity, represented as the essence of the firm's strategy. Since the inception of this concept, different studies have analysed the same concept in diverse contexts (Cant et al., 2013;Gromark and Melin, 2013;Jain et al., 2018;King et al., 2013;Napoli, 2006). In addition to empirical implications, several models were proposed to measure brand orientation, and its barriers, antecedents and outcomes (Apaydin, 2011;Boso et al., 2016;Harrison-Walker, 2014b;Huang and Tsai, 2013). Therefore, given the diversity of empirical and theoretical production over 20 years, we understand that it is necessary not only to systematize the content produced but also to further understand the relationship between the published research and the main thematic areas. For this purpose, our study aimed to analyse the studies that deal with brand orientation, to: identify the origin of the research (i.e. which institutions and which countries explore more the studies in this area); identify the key studies and keywords used; and discuss how the identified issues addressed in this area have been relating over time.
Despite the existence of a systematic literature review on the theme (Anees-ur-Rehman et al., 2016), we noticed that this study did not use bibliometric analyses, to deepen the understanding of the themes analysed. The use of statistical and mathematical techniques allows researchers to expand their vision about the object of study due to the identification of bibliometric relations on the topics of interest: main keywords and their relations; the relationship between sub-themes; and the main authors in the area (Börner et al., 2003;Waltman et al., 2010). Thus, the use of statistical techniques, through a bibliometric analysis, enabled us to see some relationships that cannot be seen from a simple content analysis, filling the research gap about the relationship between brand orientation, its extensions proposed by Anees-ur-Rehman et al. (2016), the sectors and the contexts explored by the studies.
To respond to the objective of the study, we performed a systematic literature review to generate a database to analyse bibliometricaly and better interpret the results. Thus, the bibliographic analysis techniques were applied to a final sample of 90 articles published between 1994 and 2018 in the Scopus database. According to this analysis, the studies concentrate on themes and countries, generating good research opportunities by expanding the areas studied and the issues involved.

Brand orientation
Brand orientation can be regarded as a strategic approach, in which the brand becomes the centre around which the organization's processes are created through interactions of stakeholders. This closely ties it to business development and financial performance (Gromark and Melin, 2011), as highlighted in the studies by Anees-ur-Rehman et al. (2018) and Wong and Merrilees (2008). The theoretical development of this concept has been increasing since the year 2000, expanding to different extension, as suggested by Anees-ur-Rehman et al. (2016). Ewing and Napoli (2005) developed a scale to verify the application of nonprofit brand orientation, whereas Apaydin (2011) suggested a theoretical model of antecedents and consequents to the orientations of brands in that area. Besides that, Liu et al. (2017) found a positive relationship between brand orientation and internal brand mechanisms, which corroborates with the idea that a brand orientation approach contributes to employees who have a better understanding of their role within a nonprofit company.
Furthermore, in the third sector, Mulyanegara (2011a) examined the brand orientation from the consumer perspective (Casidy, 2013), coining the concept "perceived brand orientation" (PBO) (Anees-ur-Rehman et al., 2016). In his study, Mulyanegara (2011a) concludes that active participation in churches is influenced by the positive evaluation of brand orientation as well as by the spiritual and social benefits derived from church programmes. Casidy (2013) analyses the PBO relationship with satisfaction, loyalty and post-enrollment behaviour in the higher education sector, indicating a significant relation with all the dependent variables. In the same way, Shahijan et al. (2016) also finds a positive relationship between perceived brand orientation and course satisfaction among international students in Malaysia.
In the political field, the political brand orientation consists of how party brand values and party practices are in conformity. That is, how much they are oriented towards developing brand potentials (O'Cass and Voola, 2011). Downer (2016) works this concept to show how the actions of the party and its leaders can add or remove brand value, altering the value perceived by the voter.
In the same way, it is possible to develop the brand of a tourist destination and study it from this perspective. However, the tourist destination brand is an association of deliveries of products and services generated by distinct and often independent organizations (Hankinson, 2012). Therefore, destination brand orientation (DBO) proved to have a strongly positive relationship with brand performance (García et al., 2018;Hankinson, 2012).
Particularly in the service sector, employees play a key role in the quality of service delivered (King et al., 2013;Terglav et al., 2016). Thus, more specifically in the hotel industry, Terglav et al. (2016) indicate that the commitment employees have with the brand is related to the perception of the alignment between the behaviour of the brand managers. In the same line, King et al. (2013) highlight that there is a positive relationship between service brand orientation (SBO), employee orientation to the client and brand oriented behaviour.
When it comes to retail, the retail brand orientation (RBO) is described by Brïdson et al. (2013) as a strategy in which the organization prioritizes and manages the brand's distinctive, functional, augmented and symbolic attributes. Retailers who aim for a vantage point relative to competitors should invest in building a strong RBO. However, due to retail diversity, Schmidt et al. (2017) highlight that metrics may vary when analysed RBO in different retail sectors. Also, Balmer (2013) presented a concept of corporate brand orientation, where the corporate brand becomes the central pillar of the organization, reflecting the corporation's values, culture and identity. Thus, employees, customers and other stakeholders are protagonists to build the corporate brand, which may create an emotional engagement with it (Balmer, 2013).
In addition to the proposed extensions, brand orientation may also be linked to other strategies, generating the so-called hybrid strategies such as brand-market orientation and market-brand orientation, suggested by Urde et al. (2013). Thus, Laukkanen et al. (2016) point out that the market orientation strategy has a positive impact on the financial performance of small companies if it is implemented through the brand orientation, which also proved to be a mediating factor between entrepreneurial orientation and business growth for small business-to-business (B2B) operating in emerging markets (Reijonen et al., 2015). This symbiosis is also present in political marketing, in which the parties that have the competencies to understand voters (political market orientation) and connect them with its offers (political brand orientation) would provide a unique value proposition, generating a clear differentiation from its rivals (O'Cass and Voola, 2011).
In spite of the various studies of brand orientation, both empirical and theoretical, it was noticed that a bibliometric analysis can contribute to a better understanding of the relations between studies about the subject. This type of analysis has, as one of the purposes, to use statistical and mathematical techniques to structure the information, generating clusters and maps, so that the relationships between the data can be enhanced and visualized in a way that facilitates interpretation (Börner et al., 2003;Pritchard, 1969;Waltman et al., 2010).

Methods
In the present study, we used two methodological approaches. Firstly, we conducted a systematic literature review based on Scopus, one of the largest peer-review scientific literature of large databases of scientific journals, also considered a consistent database to perform bibliometric analysis (Anees-ur-Rehman et al., 2016;Wang and Waltman, 2016). Moreover, Scopus uses rigorous criteria to index a journal, and all indexed journals are submitted to periodic evaluations to certify the maintenance of quality (Elsevier, 2019). This review was carried out to generate the database for conducting a bibliometric analysis in which we used the techniques of bibliographic coupling (Kessler, 1963) and analysis of co-occurrence of keywords (Callon et al., 1983).

Systematic literature review
The articles analysed in this study were identified through consultation with the scientific journals indexed to Scopus and Web of Science, with no category or date filters having been made, but rather language filters (only in English) and type of work (Articles and Reviews) instead. The terms used in the search engine were "brand orientation", "brand-orientation", "brand oriented" and "brand-oriented", combined with the Boolean operator OR. The search was applied in the article title fields, abstracts, and keywords. We conducted it in June 2018.
We made the initial research in both databases (Scopus and Web of Science). We found, after the initial scan, that 131 articles from Scopus and 72 articles from Web of Science met the inclusions criteria. From these articles, 57 were in both databases, 74 only in Scopus and 15 only in Web of Science. Thus, 131 articles were analysed, and of these, we excluded studies that: did not have any technical information like author, year or abstract; were not related to the areas of business, marketing, psychology or behaviour; used the customer's brand orientation as variable instead of brand orientation as strategy; and did not use brand orientation as a model variable, that is, they used brand orientation only as a theory to support the article, but did not evaluate it to meet the search goal.
This analysis was carried out by reading the titles, abstracts and introductions of the studies. Those that fit into at least one of the exclusion criteria were removed from the sample. In cases where there were still doubts whether to keep or exclude, we read the full article. Thus, the final sample consisted of 96 papers. In total, 45 were in both databases, 45 only in Scopus and 6 only in Web of Science. Finally, we synthesized the articles and, as Scopus presented a large number of articles, we chose this database to perform the bibliometric analysis.

Bibliometrics
To perform the bibliometric analysis, we used the VOSViewer software, version 1.6.10 (Van Eck and Waltman et al., 2010). From this tool, we applied technique of bibliographic coupling (Kessler, 1963) and keyword co-occurrence analysis (Callon et al., 1983). In bibliographic coupling, the more references the articles share, the greater the similarity between them (Egghe and Rousseau, 2002;Kessler, 1963). Therefore, we suggest that each cluster formed by bibliographic coupling forms the basis of a determined research front, as that cluster has articles with common references (Jarneving, 2005). As for the co-occurrence of keywords, the terms are grouped according to their degree of association in the literature, to identify which subjects were treated during the time. Thus, to examine the co-occurrence of keywords, it is analysed the frequency with which they appeared in the sample and how often two distinct keywords appear together in different jobs (Cobo et al., 2011;Losiewicz et al., 2000).
The interactions formed from the application of these techniques were exposed in network maps (Li et al., 2016;Marchiori and Mendes, 2018), being that, each map is calculated by measuring the force of interaction between terms, which takes into account the number of links between the terms (Van Eck and Waltman et al., 2010). Graphically, the terms (which, in this case, are articles or keywords) are represented by nodes and colour clusters, so that larger nodes represent more relevant terms than smaller nodes. The lines indicate the links between the nodes, as well as the distance, so that the closer one node is to the other, the more related they are Cobo et al. (2011), Sinkovics (2016 and Van Eck and Waltman (2019).

Results of bibliometric analysis 4.1 Main studies and institutions
When analysing the most relevant studies in the area, we noted that the study by Wirtz et al. (2013) is the most cited among the articles in the sample, even though it is relatively recent, while Urde (1994), which starts the concept of brand orientation, appears as the fourth most cited. Table I shows the ten papers with the highest number of citations, the journals in which they were published, the number of citations, the total citations (TC) per year and their respective countries.
Among the institutions that have two or more publications in this area, most of them are from Australia and Europe. This happens not only in the production but also in the places where the research samples were collected, as shown by Anees-ur-Rehman et al. (2016).

Co-occurrence keywords
When applying the co-occurrence technique with all keywords and with fractional counting (Van Eck and Waltman, 2014), we found 236 different words. Of those, only those that had at least two occurrences were selected, generating 46 items. The keyword "brand orientation" was excluded from the analysis, as it was by this keyword that the articles were initially selected in the search engine. We also did an adjustment for keywords considered synonymous like "b2b" and "business-to-business". Five groups were found.
Group 1 comprised terms such as brand commitment, internal brand management and employees, possibly relating the effects of the work of internal brand on employee commitment to the brand, with the hospitality sector standing out in this group, as the examples of studies by King and So (2015) and King et al. (2013). Group 2 suggests papers that have explored small and medium-sized enterprises (SME's) with the type of business-to- business consumer, directing the studies to the impacts of the brand orientation, as well as the adoption of hybrid strategies, financial performance and business growth. We noticed that, although market orientation does not belong to the same group, the term is very close to Group 2, mainly to b2b branding and strategic hybrid orientation, which indicates a strong relationship. Group 3 is directed to the internal branding and market orientation, given that these two are the ones of greater relevance in the group. Similarly, both terms appear to be related to the nonprofit sector, internal marketing and perceived benefits generated, for example, by the association of the brand orientation with market orientation (Mulyanegara, 2011a). Also, Group 3 gathers keywords such as brand strategy, internal branding and brand equity that can be related to the positive impacts of brand orientation on internal branding and brand equity, as argued by Baumgarth and Schmidt (2010).
Group 4 indicates articles that seem to relate aspects of the brand such as management and identity and shows how these aspects relate to strategic orientation, given that the terms brand management, brand identity and strategic orientation are in this group. It is important to note that, besides the keywords "financial performance" and "brand performance" which do not belong to Group 4, the proximity shows a relationship between those subjects. Finally, Group 5 includes keywords like innovation, customer loyalty and customer satisfaction suggesting that these aspects may be related to brand orientation (Wong and Merrilees, 2008) with emphasis on the higher education sector (Casidy, 2014a(Casidy, , 2014b. We observed that despite the concept of corporate brand orientation is one of the extensions of brand orientation (Anees-ur-Rehman et al., 2016;Balmer, 2013) this keyword (corporate brand orientation) is not widely used in the articles. On the other hand, corporate brand and corporate branding are the terms most frequently used (Powell, 2016) and appear in this study's sample.

Bibliographic coupling
To identify the interactions among the articles from the similarities between the references, we applied, in the sample, the technique of bibliographic coupling by documents, with fractional counting, which gives the same weight to each publication (Perianes-Rodriguez et al., 2016;Van Eck and Waltman, 2014). Thus, the map is shown in Figure 1, where each of the five clusters found was circled to facilitate visualization. Therefore, when analysing the most cited studies within each cluster, the first cluster seems to gather studies that deal with conceptual discussions of brand orientation, bringing more theoretical studies, including the study by Urde (1994), who was one of the pioneers in the brand orientation theory. The most cited study of Cluster 2 empirically measures the effects of the adoption of hybrid strategies, like brand orientation with entrepreneurial orientation or brand orientation with market orientation, mainly in relation to growth and business performance. On the other hand, Cluster 3 presents, in its most cited studies, qualitative and quantitative articles, which relate to the development of the brand internally to the company or locally in a determined microregion. From another perspective, Cluster 4, despite its most cited articles, takes into account the impacts of a company to be brand oriented, usually in financial performance, and explores the concept of brand performance. Finally, the papers in Cluster 5 aim at the area of higher education, containing all the articles of the sample that cover this sector, and analysed the concept of perceived brand orientation.
To summarize, Table II shows the four most cited studies, according to the Scopus, within each cluster and its main theme .

Cluster analysis and discussion of results
In the bibliographic coupling, we can perceive the formation of five clusters: brand orientation concept hybrid strategies, internal branding management, brand performance and perceived brand orientation. When analysing each one of them it is possible to notice relations between some clusters and the keywords groups.
Cluster 1, titled brand orientation concept, set the base of brand orientation and strategic positioning theories, and it is formed by several qualitative studies. After Urde (1994) defines brand orientation, several studies developed scales to measure this concept, its antecedents, barriers and outcomes (Brïdson and Evans, 2004;Gromark and Melin, 2011;Rentschler et al., 2011;Harrison-Walker, 2014a. Besides, some researchers adapted the original concept to different areas such as nonprofits (Ewing and Napoli, 2005;Apaydin, 2011), retail (Brïdson et al., 2013) and politics (O'Cass and Voola, 2011;Downer, 2016) and also to different perspectives as perceived brand orientation (Mulyanegara, 2011a(Mulyanegara, , 2011b. Furthermore, papers that discuss hybrid strategies (Urde and Koch, 2014) and main positioning strategies (Urde et al., 2013) from a theoretical point also form this cluster. Thus, as this cluster is considered the base of brand orientation theory and their extensions, the keywords from the studies are spread in the different keywords' groups, which are analysed below. Also, as declared, the keyword brand orientation and its synonyms have been deleted from the keyword group analysis.
The hybrid strategies (Cluster 2) is formed by articles that are mostly empirical, using methodologies such as factor analysis, structural equation modelling, cluster analysis and regressions. Laukkanen et al. (2013) and Reijonen et al. (2015) suggest that different strategic orientations, in addition to brand orientation, may impact the relationship between entrepreneurial orientation and performance, encouraging the study of hybrid strategies. The adoption of another orientation strategy, also called a hybrid strategy, was still proposed by studies such as those by Anees-ur-Rehman et al. (2017), Lee et al. (2017) and Reijonen et al. (2012Reijonen et al. ( , 2014. There are also, in Cluster 2, several articles related to small and medium enterprises (Ciunova-Shuleska et al., 2016Hirvonen and Laukkanen, 2014;Hirvonen et al., 2013Hirvonen et al., , 2016 and the effects of adopting this positioning strategies in companies of this size (Chovancová et al., 2015;Laukkanen et al., 2013Laukkanen et al., , 2016Lee et al., 2016). Reijonen et al. (2012) suggest that small and medium growing companies are more brand and market oriented than other companies (stable or declining). This relation between hybrid strategies and small and medium companies can be seen in keyword groups, as the keywords "smes" and "entrepreneurial orientation" (Chovancová et al., 2015;Reijonen et al., 2015) belong to keyword Group 2. Also, although the keyword "market orientation" does not belong to Group 2, the proximity suggests a relation to the keyword Group 2.
Cluster 3 has, as its main theme, the internal branding management. Thus, the application of brand orientation strategy to the internal development of the brand is composed of articles that mostly use the factor analysis, structural equation modelling and multiple regressions. Research, such as Baumgarth and Schmidt (2010) and Zhang et al. (2016), explores the relationship between internal branding and brand equity. According to them, brand orientation has a positive impact on brand equity through internal branding. From another perspective, Wirtz et al. (2013), which was the most cited article in the cluster, propose a model that relates brand orientation and consumer engagement in online brand communities (OBCs), suggesting that the consumer engagement in OBC's can improve the brand equity. The relation between these themes can be seen through the keywords "internal branding", "brand strategy" and "brand equity" that appeared together in Group 3. Also, some studies in Cluster 3 explore the relation between brand orientation and internal brand under an employee's commitment and behaviour, in both nonprofit and forprofit organizations (Dechawatanapaisal, 2018;King et al., 2013;Liu et al., 2015Liu et al., , 2017. In addition, strong internal brand development helps the employee to deliver services aligned with companies' promises (King and So, 2015). Thus, the relationship between the keywords on this theme, such as "brand commitment", "internal brand management and employees", is showed by Group 1.
The fourth cluster, titled brand performance, consists of both theoretical and empirical articles. Wong and Merrilees (2015) study the antecedents and consequents of brand engagement, showing that the brand orientation precedes this relationship and has positive consequences on brand performance and financial performance. Merrilees (2007a, 2008) have also studied the relationship between brand orientation and brand performance and the gap between brand performance and marketing strategy that, according to the authors, is partially filled by brand orientation. All articles were based in samples from Australia. Also, Varadarajan and Malone (2018) presented, through a case of study in a private international school in India, how branding improves the number of school enrollment. Gisip and Harun (2013) proposed a theoretical model where brand orientation is seen as a part of brand management strategy and has a positive relationship with brand performance.
Thus, the keywords in Group 4 gather together keywords such as "brand management, brand identity", "business performance" and "Australia", showing the association between the themes. Also, despite the keywords "financial performance" and "brand performance" (Group 2) belonging to a different keyword group, the proximity between these keywords suggests that these themes are related (Baxter et al., 2013;Wong and Merrilees, 2008).
Finally, the fifth cluster, titled perceived brand orientation, makes use of factor analysis and structural equation modeling and explores, for example, the positive relationships between brand orientation with student loyalty, satisfaction and intention to continue the course (Casidy, 2013(Casidy, , 2014aShahijan et al., 2016). As perceived brand orientation considers the customer's point of view, those studies using keywords as "customer satisfaction", "customer loyalty" or "student satisfaction" and "student loyalty" as those words are related with higher education. Keyword Group 5 shows these relationships.
In summary, articles show several relations between them. The internal aspects of the brand, and the adoption of hybrid strategies, mainly with market orientation, has been shown as a line of research that has aroused interest within the academic community, as well as the impacts of using these strategies on company performance. Still, perceived brand orientation seems to be a concept just being explored in a higher education and church context (Casidy, 2014a(Casidy, , 2014bMulyanegara, 2011aMulyanegara, , 2011b, which reveals the opportunity to explore it in other sectors like in services, given the importance of consumer perception (Chovancová et al., 2015). Each cluster also show practical implications of adopting brand orientation such as gains in performance, the impact in growth associated with market orientation (Cluster 2), impacts on employees' commitment, employees behaviour and brand equity (Cluster 3), impacts on performance (Cluster 4) and impacts on customer satisfaction and loyalty (Cluster 5).

Research agenda
The results show a latent need for diversification of research in different countries, mainly by comparing the causes and effects of the actions of brand orientation strategy in developed and developing economies . In addition, some studies (Brïdson and Evans, 2004;Huang and Tsai, 2013;Osakwe et al., 2016) demonstrate that good brand orientation work is related to issues such as differentiation and engagement, characteristics that seem to be even more necessary in sectors such as nonprofit, services and online commerce. In this way, future research can explore the brand orientation in these sectors, considering, for example, if nonprofit companies that are more brand-oriented are more trustworthy, and are thus able to raise more donations or attract more volunteers.
In the field of online commerce, we can verify if the brand orientation impacts on the reliability of this type of retail, thus positively affecting the consumer's purchase intention. In the service sector, brand orientation can strengthen standardization, especially in companies that operate in different locations, with headquarters and subsidiaries, guaranteeing the same exclusive experience of the brand by the consumer, wherever they use the service (Boso et al., 2016). Wallace et al. (2013) suggest exploring brand orientation in hierarchical matrixes and branch structures, looking at the role of the local manager in the development of brand identity, and the influence of the local leader and his/her team.
Regarding the metrics used, the financial performance seems to be a very relevant metric and studied as a consequence of brand orientation (Anees-ur-Rehman et al., 2016). However, other aspects seem to be little explored, such as brand sustainability, innovation, productivity, loyalty and personality (Anees-ur-Rehman et al., 2017;Biedenbach and Manzhynski, 2016;Brïdson and Evans, 2004;Gisip and Harun, 2013). The public sector is also little explored, with few studies in this context, even though Gromark and Melin (2013) point out brand orientation as an interesting alternative to market orientation in this sector.
Although some studies have explored the use of hybrid strategies in areas such as SMEs and B2B, a few studies advance to the use of other strategies beyond marketing orientation, such as orientation for the technology, for the consumer, for innovation and entrepreneurship (Anees-ur-Rehman et al., 2018;Ciunova-Shuleska et al., 2017;M'zungu et al., 2017). It is also worth investigating when, how and what market positioning leads to the adoption of a certain strategy (Urde and Koch, 2014). And, the use of hybrid strategies in different contexts might be explored as a U-shape relationship instead of a linear relationship (Lee et al., 2016). Moreover, within the mix of characteristics that a certain segment can present, putting together, for example, small and medium-sized B2B and B2C companies from different countries with different strategies, the multi-group analysis can be a powerful tool to analyse these distinctions, as in the study by Reijonen et al. (2015). In addition, Boso et al. (2016) suggest research in the BRICS countries (Brazil, Russia, China, India and South Africa) and MINT (Mexico, Indonesia, Nigeria and Turkey) and studies that compare the results for both developed and developing economies (Powell, 2016).
Relating to internal branding, both external factors (such as market fluctuations, intensity of competition and technological changes) and internal factors (such as sustainability and innovation culture) can influence the development of the internal brand through brand orientation (Dechawatanapaisal, 2018;Huang and Tsai, 2013;Iyer et al., 2018). From another perspective, Wirtz et al. (2013) proposed a model that relates brand orientation and consumer engagement in OBCs. They suggested that future research could empirically test the differences between BCs (brand communities) online and offline, exploring when the firm should choose one or the other, as well as the antecedent and consequent model. The authors also suggest developing a scale to measure engagement in OBCs and test that engagement in brand performance. In addition, the authors suggest exploring the criteria to determine in which situations it is most beneficial the company to manage the OBC or the consumers. Otherwise, Ahn et al. (2016) and Hankinson (2012) explore the relationship between the brand of certain locations (country, region) and brand orientation. Thus, some indications for future research are the study of other destinations, and taking into account the size of destinations (whether they are, for example, large or small cities in relation to population size or local development), the levels of brand resources and brand architecture.
Innovation seems to play a crucial role in performance, be it financial performance, brand performance or customer performance (Agostini and Nosella, 2016;Gisip and Harun, 2013;Lee et al., 2016;Wong and Merrilees, 2008). Lee et al. (2016) argue that an excessive focus on a single strategy (brand orientation or innovation orientation) may decrease returns of brand performance. The authors suggest to future researchers that this relation in the turbulent market, wherein the innovation orientation can be more important than brand orientation because of environmental characteristics. Another suggestion is to analyse performance from the customer's point of view (Lee et al., 2016).
Thus, another line for research is to explore the brand orientation of the internal and external perspectives. That is, from the points of view of managers and employees (internal perspective) and also taking into account the perceptions of consumers (external point of view), bringing a holistic view of the effects of brand orientation and possibly linking it with perceived brand orientation. Relating to higher education, perceived brand orientation is still little explored in distance learning (Casidy, 2014a;Shahijan et al., 2016).

Conclusions
In conclusion, this paper highlighted the relationships between the issues of brand orientation and discussed how the extensions of this concept have been applied. As the main theoretical contribution, the results of the cluster and the keyword groups showed the focus on the research in five areas: the development of the brand orientation concept and proposed extensions; hybrid strategies, mostly applied in SMEs and focusing in brand-market orientation; the relations between brand orientation, internal branding and brand management; the relation between brand orientation and brand or financial performance; the perceived brand orientation as mostly applied to higher education sector. In addition, despite the continued development of the brand orientation theme, many industries and segments still require investigation.
Also, although recent research is diversifying the countries studied (Ahn et al., 2016;Schmidt et al., 2017;Shahijan et al., 2016;Varadarajan and Malone, 2018;Zhang et al., 2016), taking into account the diversification between countries at different economic stages is necessary in an attempt to generalize the proposed models. In addition, given the complexity of adopting this type of strategy, more research can be done to clarify the background, consequents and barriers of brand orientation, their extensions and hybrid strategies, which are mainly useful managerial practices. Also, it would be interesting to perform a meta-analysis to further explore the details about the research questions related to brand orientation.