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The purpose of this paper is to systematically investigate the hydraulic fracture branching phenomena in porous media under different loading conditions and the stepwise phenomenon. The effect of the pore pressure in hydraulic fracturing branching is studied, and more evidence for the stepwise phenomenon with the peridynamics approach is provided.

A fully coupled fluid-filled explicit peridynamics model is developed to simulate the complex evolution of crack branching and stepwise phenomena in saturated porous media. Based on the peridynamics theory, an explicit time integration scheme is used to solve the coupled equation system including rock deformation, fluid flow and fracture propagation. Using the proposed model, a series of peridynamic computational tests are performed to examine two common kinds of phenomena observed in hydraulic fracturing: the crack branching phenomenon and the stepwise phenomenon.

For crack branching phenomenon, the results obtained indicate that sufficient loading is required in order to initiate the crack branching process. Compared with the stress applied on crack surfaces condition, crack branching is more easily induced with the stress applied on boundaries. In addition, for the fluid-driven crack (stress applied on crack surfaces), the existence of pore pressure will depress the growth and branching of the crack. For stepwise phenomena, the results obtained indicate that the peridynamics is a promising tool to study the stepwise phenomenon. The stepwise phenomenon is more distinct under mechanical loading conditions due to the solid behaviour. A sudden jump or crack extension will happen when enough energy is accumulated in the hydraulic fracturing system.

In this study, the explicit method is used, which means it is conditionally stable, and the critical time step needs to be decided. The reason to use the explicit method is for the study purpose; the explicit method is faster and has no need for matrix inversions.

This study helps to understand the effect of the pore pressure in hydraulic fracturing branching and provides more evidence for the stepwise phenomenon with peridynamics.

This study aims to explore the relationship between non-market strategies and organizational resilience, using a Chinese private enterprise as an example.

This study collected data through semi-structured interviews and analyzed them through grounded theory, using a three-step approach of open coding, axial coding and selective coding to analyze and construct a model of the mechanism of the impact of non-market strategies on organizational resilience.

The following conclusions were drawn from this study. (1) Stakeholders, internal and external environment and entrepreneurship are important motivations that influence private firms to implement non-market strategies to enhance organizational resilience, with entrepreneurship being the key driver. (2) Non-market strategies contain three dimensions, and different non-market behaviors have different mechanisms of action on the organizational resilience of firms. (3) Non-market strategies and organizational resilience form an interactive spiral relationship. This mutually reinforcing effect promotes firm growth and sustainable corporate development. The research results enrich the theoretical connotation of non-market strategies, construct a model of the mechanism of influence of non-market strategies on organizational resilience, and describe three explanatory paths for the relationship between the two–incentive mechanism, functional mechanism and transformation mechanism.

This study's single case is unique and based on the Chinese context. In addition, this study adopts a rooted qualitative research approach and although the coding and model construction strictly follow the steps of grounded theory research, a degree of subjectivity is inevitable. On this basis, future research can adopt quantitative analysis methods to test and improve the model.

This paper explores the important role of non-market strategies in the Chinese context under the impact of traditional market mechanisms, based on the perspective of Chinese private enterprises, and provides new insights and revelations for private enterprises to achieve sustainable development.

This study innovatively explores the formation mechanism of organizational resilience from the perspective of non-market strategies, adding a new perspective to the literature. Additionally, it examines the mechanisms between long-term non-market strategy and organizational resilience, particularly their relationship in times of crisis, utilizing a rooted approach that goes beyond static analysis.

This paper aims to review the latest management developments across the globe and pinpoint practical implications from cutting-edge research and case studies.

This briefing is prepared by an independent writer who adds their own impartial comments and places the articles in context.

Emphasis on different non-market strategies development of the organizational resilience that is becoming increasingly important for successfully navigating through crisis situations. By focusing on these strategies, firms can become more resilient and build a platform to attain growth and sustainable development.

The briefing saves busy executives, strategists and researchers hours of reading time by selecting only the very best, most pertinent information and presenting it in a condensed and easy-to-digest format.

Simulation is a well-known technique for using computers to imitate or simulate the operations of various kinds of real-world facilities or processes. The facility or process of interest is usually called a system, and to study it scientifically, we often have to make a set of assumptions about how it works. These assumptions, which usually take the form of mathematical or logical relationships, constitute a model that is used to gain some understanding of how the corresponding system behaves, and the quality of these understandings essentially depends on the credibility of given assumptions or models, known as VV&A (verification, validation and accreditation). The main purpose of this paper is to present an in-depth theoretical review and analysis for the application of VV&A in large-scale simulations.

After summarizing the VV&A of related research studies, the standards, frameworks, techniques, methods and tools have been discussed according to the characteristics of large-scale simulations (such as crowd network simulations).

The contributions of this paper will be useful for both academics and practitioners for formulating VV&A in large-scale simulations (such as crowd network simulations).

This paper will help researchers to provide support of a recommendation for formulating VV&A in large-scale simulations (such as crowd network simulations).

The purpose of this paper is to determine the principal organisational cultural dimensions that affect levels of post-merger integration (PMI) in Chinese acquisitions in Germany and to explore the relationship of these specific organisational cultural dimensions and levels of integration.

Data set were collected using a structured questionnaire given to Chinese and German managers and employees, who implemented/were responsible for the PMI in 12 Chinese acquisitions in Germany. A total of 120 questionnaires were distributed and there were 67 respondents, corresponding to a response rate of about 56 per cent. Principal components analysis, one-way ANOVA and bi-variate Spearman’s correlation were applied to analyse the data.

Findings revealed that five organisational cultural dimensions (i.e. adaptability, consistency, involvement, balance and flexibility) were extracted to be the primary indicators affecting levels of integration in Chinese reverse mergers and acquisitions (M&As) in the German market. Further, adaptability emerged as the only predictor with a significant negative implication on predicting the degree of PMI that Chinese investors would initiate to integrate their acquired German subsidiaries.

This study is one of the few studies to consider the specific organisational cultural dimensions affecting the integration levels of reverse M&As and is the first study, to the best of our knowledge, to explore the correlations of specific corporate cultural dimensions and integration levels in emerging multinational enterprises’ reverse M&As through quantitative research.

This paper aims to examine dynamic multi-stage post-merger integration (PMI) evolutions by Chinese multinational enterprises (CMNEs) in the German market and their potential influencing factors.

A data set was collected from 25 interviews with 21 respondents from six Chinese acquisition cases in Germany, and a comparative multi-case study and content analysis were applied.

The results reveal that Chinese acquirers take segmented linear integration path in Germany from nearly no integration to organisational integration and then to production integration. It contains three sub-paths: the P-O-O path (partnering–organisational optimisation–production optimisation), the P-P-P path (preservation–organisational preservation–production preservation) and the P-C-C path (preservation–organisational centralisation–production confusion). The initial nearly no integration condition is mainly impacted by asymmetric information and the targets’ strategic positions, whereas different organisational and production integration degrees in mid- and long-term stages are primarily influenced by Chinese acquirers' different dynamic capabilities. Moreover, Chinese acquirers' corporate ownership is not found to be a significant factor that influences CMNEs to take different integration strategies in different PMI stages.

This paper contributes to broaden emerging multinational enterprises’ (EMNEs) PMI theory by adding dynamic perspective and provides suggestions for mergers and acquisitions (M&As) practitioners to identify integration options and avoid integration pitfalls in different integration stages.

Existing works identified that EMNEs prefer to partner with the targets in advanced markets, but lacked a dynamic perspective to disclose whether the partnering strategy would be adjusted or not over time. This study is the first to explore multi-stage integration changes and is one of the few studies that recognise the interaction of the integration strategy with the dynamic capability of the acquiring enterprises.

This paper aims to examine how Chinese multinational enterprises’ (CMNEs) autonomy-style post-merger integration (PMI) modes of managing developed-market targets evolve into actual-form integration through the lens of ambidexterity.

This study adopts multi-case comparisons with content analysis. A data set was collected from 37 conversations by in-depth interviewing 29 respondents regarding four cases of Chinese acquisitions in the German market.

This study develops a three-stage framework that theorised CMNEs’ autonomy PMIs’ evolution to actual-form integration over time and the effect on acquisition value based on structural, temporal and contextual ambidexterity manifestations. The findings divide the evolutionary trajectory into two sub-trajectories, from great autonomy to autonomy-integration balanced or full integration, to illuminate the effect of different degrees of actual-form integration on value creation or value destruction.

The existing literature on CMNEs’ PMI discovered that CMNEs frequently grant ample autonomy when managing targets acquired from developed markets. However, long-term acquisition benefit is dependent on combining autonomy and actual-form integration; insights into how this can be accomplished are limited. The research is unique in that it reveals the evolutions of CMNEs’ PMIs on developed-market targets, from autonomy to actual-form integration through the lens of ambidexterity.

This paper investigates whether China's R&D tax deduction policy triggers firms to manipulate their R&D expenditures upward.

This paper employs the ratio of actual tax savings as a proxy for the benefits of the R&D tax deduction policy based on manually collected and systematically cross-checked data. The relationship between tax benefits and abnormal R&D spending is estimated in a sample of Chinese A-share listed companies for the period 2007–2018.

The findings suggest that tax deductions lead to positive abnormal R&D spending and that this deviation in R&D spending may be attributed to firms' upward R&D manipulation for tax avoidance. The results also indicate that this behavior is more significant for the period after the policy revision, in non-HNTEs (high and new technology enterprises), and in firms with a high ratio of R&D expenses.

It is difficult to establish a sophisticated and unified model to identify the specific strategy of upward R&D manipulation that firms use to obtain tax benefits.

Managers should take into account upward R&D manipulation when designing governance mechanisms. Policymakers in developing countries may further pursue preferential tax policies that cover every stage of innovation activities gradually; the local provincial governments need to leverage their proximity and flexibility advantages to develop a tax collection and administration system.

This study contributes to the understanding of the complex effect of R&D tax incentives and helps more fully illuminate firms' upward R&D manipulation behavior from the perspective of tax planning strategies, which are underexplored in previous research.

Unlike traditional industries, the e-cigarette is an epoch-making innovative product originating in China and occupying an absolute competitive advantage in the international market. The traditional A-U model describes the laws and characteristics of technological innovation in developed countries. In contrast, the inverse A-U model depicts the process of “secondary innovation” in late-developing countries through digestion and absorption. This paper aims to find out that if the e-cigarette, as a “first innovation” industry in a late-developing country, conform to the A-U model or conform to the “inverse A-U model”.

This paper takes the patent data of e-cigarettes from 2004 to 2021 as the research object, and uses Python’s Jieba segment words to divide product innovation and process innovation, and then uses statistical analysis methods to conduct empirical analyses on these data.

Thus, an improved A-U model suitable for the e-cigarette industry is proposed. In this model, product innovation in the e-cigarette industry appeared earlier than process innovation, but the synchronous development of product and process innovation is not lagging. The improved A-U model in the e-cigarette industry is not only different from the traditional A-U model but also does not conform to the inverse A-U model.

It is conducive to expanding and clarifying the theoretical contribution and applicable boundaries of the A-U model and has sparked thinking and exploration of the A-U model in e-cigarettes and emerging industries.

On this basis, suggestions on the development path and countermeasures of the e-cigarette industry are put forward.

Based on the e-cigarette industry, this paper takes patents as the research object and provides the method of dividing product innovation and process innovation, and proposes an A-U model suitable for the e-cigarette industry on this basis. By comparing the traditional A-U model with the inverse A-U model in latecomer countries, the background and causes of e-cigarette A-U model heterogeneity are analyzed from different stages and overall morphology. Based on this, the heterogeneity characteristics of e-cigarette innovation are summarized and sorted out.

Social media, especially microblog, has become one of the most popular platforms for public opinion dissemination. However, so far few studies have been conducted to explore information dissemination under the mobile environment. This paper aims to introduce the approach to analyze the public opinion information dissemination in mobile social networks.

This paper chooses “network attack” as the research topic and extracts 23,567 relevant messages from Sina Microblogs to study the structure of nodes for public opinion dissemination and the characteristics of propagation paths on mobile internet. Public opinion dissemination is compared on both mobile and non-mobile terminals.

The results reveal the characteristics of public opinion dissemination in mobile environment and identify three patterns of information propagation path. This study concludes that public opinion on mobile internet propagates more widely and efficiently and generates more impact than that on the non-mobile internet.

The methods used in this study can be useful for the government and other organizations to analyze and identify problems in online information dissemination.

This paper explores the mechanism of public opinion dissemination on mobile internet in China and further investigates how to improve public opinion management through a case study related to “network attack.”