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The purpose of this paper is to develop a generalized observer and controller for brushless direct current (BLDC) motor to make the system more robust for parameter variations, load torque and speed tracking.

A robust interconnection and damping assignment passivity-based control (IDA-PBC) technique for BLDC motor is introduced in this paper. The IDA-PBC is used to obtain the reference voltages for pulse width modulation (PWM) control. The immersion and invariance (I&I) observer is used to estimate the load torque and speed of the BLDC motor. At the time of starting, the motor rotates in arbitrary direction, and sometimes, because of the cogging action, it may take a huge current. Therefore, a new start-up method is proposed for the BLDC motor, which maintains the alignment of the rotor.

From the simulation and experimental results, it can be seen that the proposed controller and observer satisfactorily work for parameter variations, load torque and speed tracking.

The authenticity of the proposed technique is tested experimentally on two different BLDC motors using low-cost 32-bit STM32F407VG microcontroller. The response of the proposed technique is evaluated by changing motor parameters such as stator resistance, inductance, flux linkage constant and torque constant.

The present study aims to propose a framework elucidating the attributes of mobile augmented reality (AR) shopping apps (i.e., spatial presence, perceived personalization and perceived intrusiveness) and how they translate to downstream consumer-related outcomes (i.e., immersion, psychological ownership and stickiness to the retailer).

By conducting a questionnaire-based survey, 308 responses were collected, and the data were submitted to partial least square structural equation modeling (PLS-SEM) and artificial neural network (ANN) analyses.

A few important findings were generated from the present study. First, attributes of mobile augmented reality shopping apps (i.e., spatial presence, perceived personalization and perceived intrusiveness) influence stickiness to the retailer through immersion and consumer empowerment in serial. Second, immersion positively influences psychological ownership. Third, the optimum stimulation level moderates the relationship between spatial presence and immersion. Lastly, a post-hoc exploratory finding yielded by the multigroup analysis uncovered the moderating effect of gender.

This study offers a novel contribution to the smart retail literature by investigating the role of mobile AR shopping apps in predicting consumers' stickiness to the retailer. A holistic framework elucidating the serial mediating effect of immersion and consumer empowerment, and the moderating roles of optimum stimulation level and gender were validated.

As online travel marketing is evermore gaining importance, in particular regarding the pre-purchase presentation of travel destinations, it is imperative to examine how various media can engage consumers. The purpose of this paper is to identify how three prominent virtual representation media in tourism marketing differ regarding their potential in engaging customers. In particular, the authors examine whether they differ in the levels of interactivity, vividness and telepresence they elicit; and the impact of these dimensions on flow, enjoyment and online purchase intentions. The authors hereby focus specifically on millennials, who represent an important target market for the travel industry and are hard to reach via traditional media.

This study presents a between-subjects experimental design comparing three virtual representation media portraying New York City, namely, photographs, 360° video and virtual reality (VR). The findings are analysed with ANCOVA analysis and PLS path modelling.

The findings reveal that various media indeed generate different levels of customer engagement. In particular, VR scores the highest on all dimensions, with interactivity having the largest effect on consumers’ perception of telepresence. Such higher levels of telepresence in turn positively affect purchase intentions via mediation through flow and enjoyment.

Future research should examine whether these findings are impacted by moderators, like consumer characteristics (e.g. socio-demographics, personality traits) and destination types.

This study provides guidelines for tourism providers seeking to promote their sites in innovative and effective ways, in the anticipatory stage of the customer journey.

This study identifies interactivity as the most important driver for consumers’ perception of telepresence in the context of pre-travel tourism information. Moreover, the findings also reveal the mechanisms behind enhanced customer engagement via various media.

The current study aims to develop a comprehensive model of cocreation and immersion/engagement for café brands as well as their antecedent and consequences in a café brand context. Inherently involving highly socially involving consumption settings, cafés are particularly conducive to brand cocreation.

The current study tested a model of these relationships by analyzing data from customers of a local café and those of a global café, Starbucks, situated in the same town, Karakoy, in Istanbul, Turkey. Data from 241 respondents were analyzed using partial least squares structural equation modeling (PLS-SEM) to test the model of the study.

Results show that sense of brand community is a powerful predictor of cocreation and brand immersion, which are also important antecedents of attitude toward a brand including, cognitive, affective and conative dimensions. Results also revealed slight differences between the local and global brands in terms of brand cocreation's influence on brand trust and loyalty.

The study is conducted with a limited number of customers of two cafés in a city in Turkey. Future research with the customers from other locations of these cafés, especially the multinational customers of the international café brand is needed to retest the model for its validity.

The significant differences between ratings of local and global café brands are positive news for local and traditional cafés that are losing considerable market share to their global competitors. Strategic cocreation implementations can be used to instill special and robust relationships with consumers.

The study provides evidence that in highly socially dynamic brand contexts, such as café brands, brand community is a critical predictor of cocreation and brand immersion, which then affect attitude toward a brand with cognitive, affective and conative dimensions, reflected in brand trust, brand love, satisfaction with the brand, brand commitment and brand loyalty.

The purpose of this paper is to investigate the effect of four types of cause-related marketing (CRM) strategies on consumer responses to a fashion brand and to assess the relative effectiveness of each.

An experiment was conducted with young adult consumers (n=344) and undergraduates (n=415). Using a between-subject design, each participant was randomly assigned to one of four CRM scenarios and completed a questionnaire.

Across all CRM conditions, the effect of CRM strategy on consumer responses (e.g. perceived brand distinctiveness/credibility/attractiveness, customer–brand identification, brand attitude, customer loyalty) was significant. The effect of corporate social responsibility image on perceived brand distinctiveness was strongest for cause-related event marketing, followed by cause-related experiential marketing, transaction-based CRM and sponsorship-linked marketing.

By providing information about the relative effectiveness of four types of CRM strategies, this research aids fashion marketers in their selection of the CRM strategy that generates the best performance. Adding an event component to their CRM activity would increase the effect of CRM strategies on consumer responses.

This research contributes to the extant literature on CRM by identifying types of CRM strategies, their relative effectiveness, and key variables (e.g., C–B identification) that explain the impact of CRM strategies on consumer responses.

In the context of a profound digital transformation, the need for social interactivity is becoming fundamental for consumers on e-commerce sites. It allows them to interact with the company in the same way as with salespeople in physical stores. Among the different existing virtual agents used by companies to offer online solid interaction, this study focuses on virtual recommendation agents (VRAs). The purpose of this paper is to investigate the effectiveness of VRA on consumers’ psychological states and online impulse buying.

An experimental website was designed for this study. After interacting with VRA, respondents had to take part in a survey. The questionnaire included measures of perception of the VRA, perceived enjoyment, online impulse buying and perceived risk. Structural equation modelling was used to test the research model.

The results confirm the positive influence of the VRA on perceived enjoyment, which is positively associated with online impulse buying. The effect of the VRA’s presence on perceived enjoyment is moderated by gender.

Only one product category was studied, for which the advice of VRAs is undoubtedly essential. However, this could also be valid for other products, such as technological products, where the consumer’s level of expertise may be low. Hence, the authors propose to extend this study to various products for a better generalization of the results.

This study provides practitioners with relevant findings on the efficiency of VRAs and offers them guidelines to design more interactive commercial websites with higher levels of social interactions. Such interactions should reduce perceived risks and make visitors more confident. This can encourage more traffic and sales, which implies growth in incomes and revenues.

Through this technology, VRAs can create more humanized links between consumers and companies.

Working on VRAs is original as they represent the technology that can replace salespeople. In addition, to the best of the authors’ knowledge, this research is the first to test the impact of VRA on online impulse buying. By examining the VRA’s set of fundamental capabilities, this study contributes to existing research on how companies should integrate digital technologies in their sales interactions with consumers, which to date has focused on other sales channels such as social media platforms.

E-commerce live streaming (ELS) has become a new and important shopping channel. Although previous studies have provided insightful findings on how to engage consumers in ELS, limited effort has been made to explore the role of factors of live streaming rooms. Based on the literature on space perception and the retail environment, this study aims to develop a theoretical model to examine how perceived distance and perceived depth affect consumers' affective and cognitive perceptions and then further impact product attitude in ELS.

This study collected 414 valid survey responses to test the proposed research model. Survey data were analyzed using partial least squares (PLS)-structural equation modeling. The PLS Multi-Group analysis (PLS-MGA) was used to test the consistency of the research model across different product types and watching durations.

The results suggest that environmental factors of a live streaming room (i.e. perceived distance and perceived depth) can impact consumers' attitudes toward the product in the live streaming via both cognitive and affective routes. These effects keep consistent across different product types and watching durations.

The paper focuses on the environmental perspective, which is unexplored in previous literature on ELS. It highlights the importance of the space design of live streaming rooms.

Despite the ever-increasing importance of cultivating information, communication and technology literacy skills among college students, they have yet to be related to comprehensive measuring instruments. A glance at the empirical literature reveals that most pertinent scales have been confined to measuring Internet literacy skills, whereas educators in the 21st century advocate an inclusive conceptualization of ICT literacy. Such a comprehensive conceptualization embodies technical, critical, cognitive and emotional competencies. Additionally, more empirical evidence is needed to indicate gaps in testing measurement invariance of ICT literacy scales across genders or cultures. To that end, the current study aims to adapt and cross-validate an ICT literacy self-efficacy scale across gender by testing the measurement invariance using a multiple-sampling confirmatory factor analysis (MCFA). Furthermore, the current study aims to verify the ICT literacy self-efficacy scale's psychometric properties to establish its construct validity and understand the scale's underlying factorial structure.

The current study has administered the scale to a cross-sectional sample of 3560 undergraduate students enrolled in six universities in the Sultanate of Oman.

The results have revealed that the ICT literacy self-efficacy exhibits satisfactory indices of construct validity. On the other hand, the results of MCFA demonstrate that the differences in the goodness of fit indices between the nested models and the baseline model were below the cut-off criterion of 0.01, indicating invariance. Therefore, the scale has proved to be amenable for comparing genders on their ICT literacy self-efficacy using an one-way multivariate analysis of variance.

The study has several implications for research and pedagogical practices. The study provides empirical evidence for establishing ICT literacy self-efficacy as a distinct high-domain construct of task-specific self-efficacy beliefs.

This study tests the cultural invariance in Latin America utilizing a sample of four representative countries – Argentina, Colombia, Mexico, and Venezuela. With the participation of 915 individuals, samples were contrasted along seven cultural values (Schwartz, 1994) dictating the relationship of individuals with the society at large. Results challenge general notions conceiving of Latin America as a homogeneous bloc. Rather, outcomes indicate the presence of significant cultural disparities, adding to previous research by showing sample differentials in (1) mean importance ratings on values governing the behaviors of individuals beyond organizational settings and (2) the way values are behaviorally specified among samples. Findings are discussed in terms of restrictions in generalizing theories and managerial practices in the region. Avenues for future research are also highlighted.

Brands are investing heavily in content marketing within digital communication channels, yet there is limited understanding of the effectiveness of this content on consumer engagement. This paper aims to examine how consumer engagement with branded content is created through consumer-initiated online brand communities (OBCs) and brand-initiated digital content marketing (DCM) communications. Self-brand connections are examined as an important antecedent to the cognitive, affective, behavioural and social dimensions of consumer engagement and the subsequent impact of engagement on loyalty is explored across these two channels.

A survey approach was used with two consumer samples for one focal retail brand, namely, a consumer-initiated OBC (Facebook) and email subscribers of the retail brand’s DCM communications. A multi-group analysis of structural invariance procedure was used to comparatively examine the formation of engagement for consumers within the OBC and DCM channels.

This study demonstrates the different ways in which engagement forms across different digital communication channels. Self-brand connection (SBC) was found to strongly drive behavioural, cognitive, affective and social engagement. The cognitive, affective and behavioural engagement was found to mediate the self-brand connection and consumer loyalty relationship. Overall, this relationship was most strongly and significantly mediated by affective and cognitive engagement within the OBC channel when compared to the DCM channel.

The findings of this study should be interpreted with several limitations in mind. First, the research was conducted within the confines of one OBC, within one social networking site platform characterised by self-selected membership based on a passion and immersion with the brand. This means that consumers within the OBC were highly connected to one another and the retail brand and highly socialised in-group norms and mores. This type and intensity of connection may not be the case for all forms of OBCs. Second, this study was limited to one retail brand, from one brand category. Future research should examine OBCs across a range of utilitarian and hedonic brands to comprehensively contextualise the dimensions of engagement. Third, the data for this study was cross-sectional. The use of netnographic analysis and qualitative interviews across a range of OBCs would support the triangulation of the findings of this research, especially with regard to the narrative that consumers’ express when discussing how their SBC manifests through the dimensions of engagement. Fourth, this study explored a single antecedent of engagement, namely, self-brand connections. Future research may consider how SBC operates in conjunction with other complementary factors to enhance consumers’ affective, cognitive, social and behavioural engagement such as brand awareness, satisfaction and participation/interactivity. In addition, future research could examine an expanded array of engagement outcomes such as purchase intention, the share of wallet and reputation. Finally, future research should examine the operationalisation and validation of the dimensions of engagement using multiple competing scales to assess the suitability of these engagement scales across multiple brand categories and contexts.

Given the increasing investment in branding within social media and the fragmentation of brand communications across multiple communications platforms, the management of effective brand communications remains a significant challenge. This study found that the relationship between self-brand connections, affective, social, behavioural and cognitive engagement and loyalty was context-specific and moderated by a digital communication channel (OBC vs DCM email marketing), thus providing insights as to the effectiveness of OBCs and DCMs as two tools for enhancing consumer loyalty.

This study makes a novel contribution to the engagement literature by examining the antecedent role of self-brand connections in predicting consumers’ engagement; the moderating role of digital communication platforms (OBC vs DCM) on the formation of cognitive, affective, behavioural and social engagement; and the mediating effect of these dimensions on loyalty.