Purpose The purpose of this paper is to investigate the effects of visual communications on Instagram users’ propensity to engage with image-based content through online behaviors such as liking, sharing, commenting and following, and their intention to purchase the product depicted in the visual communications. Design/methodology/approach An experimental design was used to measure the effect of branded Instagram images on a sample of active Instagram users. Two features of Instagram images (subject’s gaze: direct vs indirect; product salience: low vs high) were manipulated and their interactive effect tested on online behaviors. Findings The paper offers empirical evidence that direct gaze and high product salience positively affect digital visual engagement. Moreover, digital visual engagement influences intention to purchase. Research limitations/implications The hypotheses were tested on a single product category and on only two image-based features. Further studies might replicate the experiment on different product categories and include different image-based features. Practical implications This empirical study can offer communication managers important information on the image-based features that are most effective in increasing digital visual engagement and positively influencing purchase intentions in visual communications. Originality/value The study empirically demonstrates that the choice of specific image-based features in visual communication matters for increasing digital visual engagement among Instagram users.

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Purpose – The aim of this paper is to develop and test a theoretical framework, grounded in managerial and organisational theories of dialogue, through which organisations can take decisions in relation to the most appropriate crisis response strategies for handling social media stakeholders. Design/methodology/approach – The theoretical framework is developed through a conceptual analysis of literature on dialogue, social media and crisis communication. The theoretical framework is then tested in eight different international organisations experiencing a crisis. For each case, different web contents, such as organisations' status updates/posts, links, videos published on Facebook, Twitter, and YouTube, were analysed using a rhetorical research approach. Findings – The analysed organisations apply different online dialogue strategies according to crisis types and in combination with specific crisis response strategies. Most of the organisations investigated carry on those dialogue strategies suitable to develop consensus (concertative), guide conversations on specific topics or issues (framing), find solutions to the crisis collectively (transformative). Concertative strategies were often associated with informative crisis response strategies, framing strategies with denial and justification crisis response strategies and transformative strategies with corrective actions. Research limitations/implications – By using a dialogic perspective in setting up online conversations with their external stakeholders, the paper proposes a theoretical model to explain companies' decisions in carrying on online dialogues during critical situations and thus contribute to the body of knowledge on online crisis communications. Practical implications – The proposed model can support crisis communicators to manage dialogue's aims and dimensions differently by taking into account both contextual and situational conditions. Originality/value – By integrating management studies on dialogue into crisis communication and social media literature, the authors intend to offer an alternative thinking of organisations' decision-making in relation to crisis response strategies and social media stakeholders.

Purpose The purpose of this paper is to develop a measurement scale for assessing the quality of dialogic conversations among companies and digital publics in social media. Dialogic conversations are defined as sequences of communicative actions and counteractions taken by social actors for different purposes based on specific linguistic choices and characterised by diverse communicative approaches and the role played by the involved parties. Design/methodology/approach A multidimensional scale for measuring dialogic conversations is developed from relevant literature concerning dialogue and public engagement in the fields of corporate communication, public relations, management studies and conversation analysis. The scale is built on three main dimensions: organisation turn-taking, sequencing of conversation, repair strategies and procedures. A pilot study was conducted to purify it from irrelevant variables. Findings Results of the pilot study show a general good level of reliability for the majority of the proposed variables for Facebook but not for Twitter. This may indicate that Facebook is a more dialogical forum than Twitter. Originality/value This is the first study proposing a systematic measurement of the dialogue orientation of online conversations that takes into consideration the role of language and communicative actions. The proposed measurement offers corporate communication managers a concrete tool for evaluating the quality of their online communications and for identifying those areas of their online communication that need improvement.