Моделі термомеханіки багатокомпонентних деформівних твердих тіл

Зроблено короткий огляд і проаналізовано особливості теорій, що описують термомеханічну поведінку багатокомпонентних деформівних твердих тіл, зокрема, гомогенних твердих сумішей. Окремо виділено моделі для дослідження взаємозв’язаних механічних, теплових, дифузійних та електромагнітних процесів у тілах різної електропровідності та здатності до поляризації й намагнічення.A brief review and analysis of theories that describe the thermomechanical behavior of multicomponent deformable solids, in particular of homogeneous hard mixtures, have been presented. Also, the models for investigation of coupled electromagnetic, mechanical, thermal and diffusive processes in solids of various electric conductivity as well as abilities to polarization and magnetization are reviewed.Сделан краткий обзор и проанализированы особенности теорий, описывающих термомеханическое поведение многокомпонентных деформируемых твердых тел, в частности, гомогенных твердых смесей. Отдельно выделены модели для исследования механических, тепловых и диффузионных процессов во взаимосвязи с электромагнитными в поляризирующихся и намагничивающихся электропроводных телах

The impact of outward FDI on the performance of Chinese firms

Using new firm-level data from the Emerging Multinationals' Events and Networks DATAbase (EMENDATA), this paper investigates the effects on Chinese firms of Outward FDI (OFDI) into advanced European countries. Propensity score matching is combined with a difference-indifference (DiD) estimator to reduce the problem of self-selection of treated firms in foreign markets, and to eliminate time-invariant and unobservable differences between those firms and the controls. The results provide robust evidence supporting the view that China's OFDI so far have had a positive impact on domestic activities in enhancing firms' productivity and scales of operation, measured by sales and employment. When we distinguish among investments on the basis of entrymode, accounting for endogeneity in the selection process, acquisitions facilitate early access to intangible assets, but are detrimental to financial performance, while greenfield investments have a stronger impact on the scale and productivity of Chinese multinationals investing in Europe

Local innovation and global value chains in developing countries

The GVC approach has stressed that inter-firm linkages within GVCs can play a crucial role in transferring technological knowledge and promoting innovation. However, the exact nature of these GVC inter-firms relationships, and their impact on the learning and innovative processes of firms involved in such GVCs in developing countries is still controversial and rather understudied. In this paper we argue that to investigate whether and how firms involved in GVCs (as well as industrial clusters, regions and countries) innovate, scholars should not focus entirely on GVC characteristics and the role of lead firms, but they also should take into account domestic technological capabilities at the firm, industrial cluster/regional and local innovation system-levels. In this study we undertake a systematic review of the literature on GVCs in developing countries to investigate if and how innovation has been undertaken at the local level. With cluster analysis, we have identified three types of GVCs, defined as (a) GVC-led Innovators, consisting of innovative local firms, which intensively use knowledge sources from within the GVC; (b) Independent Innovators also consisting of innovative firms, but whose learning sources mainly come from outside the GVC; c) Weak Innovators, including a large group of scarcely innovative firms, drawing selectively on some of the knowledge sources available within the GVC but poorly using other forms of learning

Linking learning with governance in networks and clusters: key issues for analysis and policy

In this paper we analyse the relationship between governance and learning in clusters and networks. In particular, we see these two key elements as interdependent, suggesting that, under particular circumstances, such interdependence may drive clusters and networks towards a dynamic development trajectory. A pure ‘governance perspective’ makes the development of any locality dependent on the system of powers which exists within the locality or across the global value chain. In parallel, a pure ‘competence-based approach’ focuses mainly on the capabilities of actors to learn and undertake activities. In contrast, we open the prospects for an interdependent relation that may change the actual competences of actors as well as the governance settings and dynamics in networks and clusters. When supported by public policies, the learning process may have the potential to modify the governance environment. Simultaneously, the learning process is intrinsically influenced by economic power, which may seriously affect the development prospects of clusters and networks. This is why an intertwined consideration of both aspects is necessary to promote specific approaches to learning and to design appropriate policies. In this paper we offer two preliminary case studies to clarify some of these dynamics: the first taken from the computers cluster in Costa Rica and the second from an Italian bio-pharmaceutical firm and its production network. The first case study refers to the software cluster that was created from scratch in Costa Rica thanks to an enlightened government policy in coordination with new local enterprises and an important foreign direct investor; while the second reflects on the ability of an individual company to create a network of relationships with large transnational companies in order to acquire new competences without falling into a subordinate position with respect to its larger partners

Business constraints and growth potential of micro and small manufacturing enterprises in Uganda

Ugandan micro and small enterprises (MSEs) still perform poorly. Studies associating poor performance of manufacturers with lack of finance and low investment ignore micro enterprises. Those focusing on MSEs are either exploratory in nature or employ a descriptive analysis, which cannot show the extent to which business constraints explain the performance of MSEs. Thus, this paper tries to examine the extent to which the growth of MSEs is associated with business constraints while controlling for owners’ attributes and firms’ characteristics. The results reveal that MSEs’ growth potential is negatively associated with limited access to productive resources (finance and business development services), high taxes and lack of market access