Subnational institutionals, political capital, and the internationalization of entrepreneurial firms in emerging economies

This study advances the institution-based view of strategy by integrating it with firm-specific capability considerations. In particular, we investigate the integrative influence of subnational-level home country institutional environments and firm-level political capital, as an important way to seek resources, on emerging economy entrepreneurial firms’ internationalization. With data from Chinese entrepreneurial firms, we find that the development of subnational institutional environments in the home country is related to firms’ degree of internationalization. Furthermore, while political capital with low-level governments enhances the effect of subnational institutions on internationalization, political capital with high levels of government has no such moderation effect. Theoretical and empirical contributions and implications are discussed

In situ measurements and thermo-mechanical simulation of Ti–6Al–4V laser solid forming processes

Residual stresses and distortions are two technical obstacles for popularizing the additive manufacturing (AM) technology. The evolution of the stresses in AM components during the thermal cycles of the metal depositing process is not yet clear, and more accurate in situ measurements are necessary to calibrate and validate the numerical tools developed for its simulation. In this work a fully coupled thermo-mechanical analysis to simulate the laser solid forming (LSF) process is carried out. At the same time, an exhaustive experimental campaign is launched to measure the temperature evolution at different locations, as well as the distortions and both the stress and strain fields. The thermal and mechanical responses of single-wall coupons under different process parameters are recorded and compared with the numerical models. Good agreement between the numerical results and the experimental measurements is obtained. Sensitivity analysis demonstrates that the AM process is significantly affected by the laser power and the feeding rate, while poorly influenced by the scanning speed.Peer ReviewedPostprint (author's final draft

Finite element analysis and experimental validation of the thermomechanical behavior in laser solid forming of Ti-6Al-4V

A three-dimensional (3D) thermomechanical coupled model for Laser Solid Forming (LSF) of Ti-6Al-4V alloy has been calibrated through experiments of 40-layers metal deposition using different scanning strategies. The sensitivity analysis of the mechanical parameters shows that the thermal expansion coefficient as well as the elastic limit of Ti-6Al-4V have a great impact on the mechanical behavior. Using the validated model and optimal mechanical parameters, the evolution of thermo-mechanical fields in LSF has been analyzed. It has been found that the stresses and distortions develop in two stages, after the deposition of the first layer and during the cooling phase after the manufacturing of the component. The cooling phase is the responsible of 70% of the residual stresses and 60% of the total distortions. The analyses indicate that by controlling the initial substrate temperature (pre-heating phase) and the final cooling phase it is possible to mitigate both distortion and residual stresses. Hence, the influence of different pre-heating procedures on the mechanical fields has been analyzed. The results show that increasing the pre-heating temperature of the substrate is the most effective way to reduce the distortions and residual stresses in Additive Manufacturing

In situ measurements and thermo-mechanical simulation of Ti–6Al–4V laser solid forming processes

Residual stresses and distortions are two technical obstacles for popularizing the additive manufacturing (AM) technology. The evolution of the stresses in AM components during the thermal cycles of the metal depositing process is not yet clear, and more accurate in situ measurements are necessary to calibrate and validate the numerical tools developed for its simulation. In this work a fully coupled thermo-mechanical analysis to simulate the laser solid forming (LSF) process is carried out. At the same time, an exhaustive experimental campaign is launched to measure the temperature evolution at different locations, as well as the distortions and both the stress and strain fields. The thermal and mechanical responses of single-wall coupons under different process parameters are recorded and compared with the numerical models. Good agreement between the numerical results and the experimental measurements is obtained. Sensitivity analysis demonstrates that the AM process is significantly affected by the laser power and the feeding rate, while poorly influenced by the scanning speed

Home country supportiveness/unfavorableness and outward foreign direct investment from China

What drives the outward foreign direct investments (OFDIs) by emerging market firms (EMFs)? Drawing on a strategy tripod framework, this article proposes a theoretical model to predict OFDI by EMFs from China. Specifically, we use institution- and industry-based views to examine two facets of home country environment, namely the supportiveness from home government and unfavorableness from home industry, as important determinants of OFDI, and compare the relative strength of these effects. Further, we use resource-based view to argue that the effect of the home country environment is contingent on the international experience portfolios of EMFs

The gut microbiome dysbiosis and regulation by fecal microbiota transplantation: umbrella review

BackgroundGut microbiome dysbiosis has been implicated in various gastrointestinal and extra-gastrointestinal diseases, but evidence on the efficacy and safety of fecal microbiota transplantation (FMT) for therapeutic indications remains unclear.MethodsThe gutMDisorder database was used to summarize the associations between gut microbiome dysbiosis and diseases. We performed an umbrella review of published meta-analyses to determine the evidence synthesis on the efficacy and safety of FMT in treating various diseases. Our study was registered in PROSPERO (CRD42022301226).ResultsGut microbiome dysbiosis was associated with 117 gastrointestinal and extra-gastrointestinal. Colorectal cancer was associated with 92 dysbiosis. Dysbiosis involving Firmicutes (phylum) was associated with 34 diseases. We identified 62 published meta-analyses of FMT. FMT was found to be effective for 13 diseases, with a 95.56% cure rate (95% CI: 93.88–97.05%) for recurrent Chloridoids difficile infection (rCDI). Evidence was high quality for rCDI and moderate to high quality for ulcerative colitis and Crohn’s disease but low to very low quality for other diseases.ConclusionGut microbiome dysbiosis may be implicated in numerous diseases. Substantial evidence suggests FMT improves clinical outcomes for certain indications, but evidence quality varies greatly depending on the specific indication, route of administration, frequency of instillation, fecal preparation, and donor type. This variability should inform clinical, policy, and implementation decisions regarding FMT

What determines the establishment of Chinese multinational enterprises' Asia regional headquarters?

Although regionalization has gained interests from many scholars, little research has been done to examine why MNEs set up regional headquarters out of their home country but within their home region. We develop a theoretical framework to examine the determinants of Chinese MNEs’ Asia regional headquarters (ARHQs).\ud \ud We argue that the establishment of ARHQs is a logical choice based on Chinese MNEs’ strategic intent of regional strategy. We differentiate two regional strategies: investing-regionalization with efficiency improvement as the strategic intent and trading-regionalization with legitimacy gaining as the strategic intent.\ud \ud Based on survey responses from 226 Chinese MNEs, we find that investing-regionalization in Asia would promote MNEs to build ARHQs, while MNEs would set up ARHQs when they have high trading-regionalization outside of Asia. In addition, we find that home-base regional integration and MNEs’ international management capability will not only directly impact the establishment of ARHQs, but also moderate the relationship between trading-regionalization outside of Asia and the establishment of ARHQs

Entrepreneurial orientation, social capital, and the internationalization of SMES : evidence from China

This article combines arguments from entrepreneurship literature and social capital theory to examine the antecedents to the internationalization of small and medium-sized enterprises (SMEs) from China. Our quantitative study of 117 Chinese SMEs demonstrates the overall importance of entrepreneurial orientation and social capital of entrepreneurs in facilitating their internationalization efforts, and also reveals that different dimensions of entrepreneurial orientation and different types of social capital exert different levels of independent influence on Chinese SMEs' internationalization. Complementary data from multiple case studies explains the variation between our quantitative findings and the findings of previous research. By highlighting the value of the entrepreneurial attributes of Chinese SMEs and the social capital embedded in their networks in the pursuit of their internationalization, the article adds to the scant literature on the internationalization behavior of the rapidly emerging Chinese SMEs.16 page(s