When nonlinear dynamical systems are coupled, depending on the intrinsic dynamics and the manner in which the coupling is organized, a host of novel phenomena can arise. In this context, an important emergent phenomenon is the complete suppression of oscillations, formally termed amplitude death (AD). Oscillations of the entire system cease as a consequence of the interaction, leading to stationary behavior. The fixed points that the coupling stabilizes can be the otherwise unstable fixed points of the uncoupled system or can correspond to novel stationary points. Such behaviour is of relevance in areas ranging from laser physics to the dynamics of biological systems. In this review we discuss the characteristics of the different coupling strategies and scenarios that lead to AD in a variety of different situations, and draw attention to several open issues and challenging problems for further study.

We study coupled dynamical systems wherein the influence of one system on the other is cumulative: coupling signals are integrated over a time interval τ. A major consequence of integrative coupling is that amplitude death occurs over a wider range and in a single region in parameter space. For coupled limit cycle oscillators (the Landau-Stuart model) we obtain an analytic estimate for the boundary of this region while for coupled chaotic Lorenz oscillators numerical results are presented. For given τ we find that there is a critical coupling strength at which the frequency of oscillations changes discontinuously.

PurposeThe purpose of this study is to examine the effectiveness of in-store private label marketing to impact the attitude of consumers towards private label brands (PLBs) by influencing consumers' perceived quality variations between the PLBs and national brands.Design/methodology/approachThis study is based on “Cue utilisation theory” and focusses on how retailers can influence consumers' perception of quality variations by providing them in-store marketing cues. Data was collected through the mall intercept method in New Delhi, India. Data analysis was done using AMOS 25 and the PROCESS SPSS macro.FindingsThis study establishes the effect of in-store private label marketing in improving consumers' quality perception of PLBs vis-à-vis national brands and thereby leading to a positive attitude towards PLBs. Further, the national brand promotions attitude is found to moderate the relationship between private label marketing and attitude towards PLBs. However, contrary to the authors' expectations, it has a positive effect on this relationship. The study found an insignificant moderation influence of price consciousness.Originality/valueThis study complements existing literature on “Cue utilisation theory” by demonstrating the importance of in-store private label marketing in improving consumers' attitudes towards PLBs. It also extends to fill some gaps in the literature by studying the direct, mediating and moderating relationship among in-store private label marketing, perceived quality variations, price consciousness, national brand promotion attitude and attitude towards PLBs, especially in an emerging market such as India.

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PurposeThis study aims to understand the effect of consumers' national identity (NI) on their willingness to buy (WTB) domestic (Indian) products vis-à-vis foreign (Chinese) products. Secondly, it explores the role of psychological ownership (PO) and consumers' animosity in explaining their WTB domestic products.Design/methodology/approachIn this paper data were collected online from Indian consumers (N = 408) through the survey method, using a structured questionnaire. Data analysis was conducted using SPSS AMOS Version 24 and the PROCESS SPSS macro, using mediations and moderated mediation models.FindingsThis study establishes the positive effect of consumers' NI on their WTB domestic products over Chinese ones. With a long history of hostility between India and China in the backdrop, the authors find a significant mediating role of PO and consumer animosity (CA) in the relationship between NI and WTB . The results also demonstrate that while consumer ethnocentrism (CET) positively moderates the mediating path via PO at all levels from low to high, it moderates the path via CA only at the mean and high levels.Originality/valueThis study applies the Psychological Ownership Theory, Social Identity Theory (SIT) and the Attribution Theory to explore the interplay between consumers' NI, PO , CA and ethnocentrism in the Indian context. The study asserts the distinction between these constructs by analyzing the interaction and inter-relationships between these variables. Further, it provides a comprehensive understanding of Indian consumers' preference for domestic products over Chinese ones.

In the current day competitive business environment, continuous innovation has become a central strategy for most firms. The ability to achieve continuous innovation has been observed to facilitate the growth and profitability of a firm. Innovation can not only lead to new customers and market segments, but it also enables firms to develop a reputation for being innovative. In today’s world of fast-changing preferences and trends, such a reputation for a firm is likely to considerably add to its brand equity and growth prospects. The current study investigates the role of knowledge sharing, innovation capability, and marketing capability in a firm’s reputation for innovation. A set of hypotheses were developed to analyse these relationships using structural equation modelling (SEM). The data were collected from seventy-five (75) senior executives spanning across five different industries in the Indian service and manufacturing sector. The findings of the study indicated that a firm’s reputation for innovation is influenced by factors like innovation capability, which in turn is an outcome of tacit and explicit knowledge sharing within the firm. Further, marketing capability plays a positively moderating role between innovation capability and the firm’s reputation for innovation. Overall, the study highlights that the innovation capability of a firm is a result of tacit and explicit knowledge sharing inside the firm. However, such innovation capability alone is not sufficient for a firm to be viewed as “innovative”. The firm must develop and use appropriate marketing and knowledge management capabilities to highlight such an innovative nature of the firm in order to be viewed as innovative in the market.

The paper investigates synchronization in unidirectionally coupled dynamical systems wherein the influence of drive on response is cumulative: coupling signals are integrated over a time interval τ . A major consequence of integrative coupling is that the onset of the generalized and phase synchronization occurs at higher coupling compared to the instantaneous (τ = 0) case. The critical coupling strength at which synchronization sets in is found to increase with τ . The systems explored are the chaotic Rössler and limit cycle (the Landau-Stuart model) oscillators. For coupled Rössler oscillators the region of generalized synchrony in the phase space is intercepted by an asynchronous region which corresponds to anomalous generalized synchronization.

PurposeThe study explores the effect of game flow, game enjoyment and game customization on consumers' attitudes toward the game (ATG). It also examines the relationship between consumers' ATG and attitude toward the in-game advertising (IGA) brand.Design/methodology/approachThe study used SEM and PROCESS MACRO to analyze the results.FindingsThe study asserts the significant role of game flow, game customization and game enjoyment as antecedents of consumers' ATG. Furthermore, psychological ownership and perceived IGA invasiveness were found to be significant moderators between attitude toward game and attitude for the IGA brand.Originality/valueThe study examines how players’ attitude toward the game influences their attitude toward the IGA brand due to the player's ownership perceptions over the game and invasiveness perceptions for IGA. The study used psychological ownership and psychological reactance theory in the gamification context. The study findings present pertinent implications for game developers and brands interested in using IGA tools.