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For aiding computer security experts in their study, log files are a crucial piece of information. Especially the time domain is very important for us because in most cases, timestamps are the only linking points between events caused by attackers, faulty systems or simple errors and their corresponding entries in log files. With the idea of storing and analyzing this log information in graph databases, we need a suitable model to store and connect timestamps and their events. This paper aims to find and evaluate different approaches how to store timestamps in graph databases and their individual benefits and drawbacks.

We analyse three different approaches, how timestamp information can be represented and stored in graph databases. For checking the models, we set up four typical questions that are important for log file analysis and tested them for each of the models. During the evaluation, we used the performance and other properties as metrics, how suitable each of the models is for representing the log files’ timestamp information. In the last part, we try to improve one promising looking model.

We come to the conclusion, that the simplest model with the least graph database-specific concepts in use is also the one yielding the simplest and fastest queries.

Limitations to this research are that only one graph database was studied and also improvements to the query engine might change future results.

In the study, we addressed the issue of storing timestamps in graph databases in a meaningful, practical and efficient way. The results can be used as a pattern for similar scenarios and applications.

The purpose of this paper is to present a new strategic framework of Supply Chain Management (SCM) in the automobile industry. For our purpose, we first had studied about the structure of relationship between supplier and buyer in Korean automobile industry. With this study, we searched for factors which compose a strategy of SCM, and whether or not the companies’ performance that are influenced by specific SCM strategy factors. Of course, our study based on existing researches, especially Cox et al.(1995) and Venkatraman et al.(1992), but the existing researches is differentiated in this paper that is treated several power factors as resource, value, environment and relation. So, results of our paper are what a good strategy of SCM composed by these factors and how to adopt this strategy on global logistics. And our methodology has some using of statistics method by SPSS 14(v) such as factor analysis, reliability analysis, and SEM(Structural Equation Model) with AMOS.

As the wave of liberalization and deregulation have accelerated to relieve rigid controls over airline routes, capacity, and fare setting regimes, Low Cost Carriers (LCCs) have emerged especially in local aviation markets since the 1970s.

This paper has studied the effects of LCC's entry into the domestic aviation market which was pre-occupied by two major carriers, Korean Air (KAL) and Asiana Airlines. Through a simple model describing two situations, prior and post to LCC's entry, we analyzed changes and trends of each airline's output and profit based on the Cournot and two-stage Stackelberg game equilibrium.

In summary, our conclusion consists of five points: (1) Even though JIN Air's entry reduced KAL's respective output and profit, the more JIN Air produces, the higher the joint-profit of KAL and JIN Air is, (2) From the joint-profit aspect, increasing KAL's output to a level than JIN Air's is more profitable on the Gimpo-Jeju route, on the other hand, increasing JIN Air's output higher than KAL's is more profitable on the Jeju-Busan route, (3) Even though JIN Air's entry increase Asiana Airline's output, the more JIN Air produces, the less Asiana Airlines's profit is, (4) Total output in markets as well as total profits of firms will increase under certain conditions, (5) KAL and JIN Air tend to get caught in an unresolved conflict on level of LCC cost.

The purpose of this paper is to explore international market development for mature products and practices used in a novel business context.

Taking a qualitative approach, the case study method was chosen to investigate how firms develop markets in relation to a new international business context. Critical international decisions are analysed using a managerial perspective.

The success of international ventures depends on managerial learning and effectiveness. In this paper, the authors argue that decisions about international market development can add significantly to the understanding of how business firms enter and develop markets in novel business contexts. Two case studies show different approaches for meeting challenges in distant markets. Four propositions are developed.

A theoretical contribution of this study is the importance of factors that explain international market development decisions in novel business contexts. The balance between incomplete knowledge and making resource commitments is of central concern to international managers. Some of this is tacit knowledge that a firm achieves and learns during the process of market development and other knowledge can only become available after an actual market entry. A second theoretical contribution of this study is the significance of contextual market knowledge in a novel business context.

This paper aims to study whether international niche market leaders (INMLs) gained their leading position as early mover or diligent follower, and assess whether they leveraged hard or soft forms of technological, supply pre-emption and customer lock-in advantage mechanisms.

Empirical material stems from qualitative and quantitative data on a sample of 20 niche companies from the Basque Country (Spain) that operate in business to business markets.

The sample predominantly followed an early entrant strategy and applied soft measures to reach niche market leadership.

Findings imply that early entering fosters conquering leadership in niche markets, that pioneer advantage is easier to sustain in niches than in mainstream markets, and that soft measures are more effective in niche markets than in larger markets. A limitation to our findings is that they follow from explorative research on a sample of firms from a reduced geographic setting.

Hidden champions and INMLs can be important sources of technological progress and economic value for the localities that host them. Therefore, despite their traditional low profile and the fact that they are not always the largest firms around, policymakers may want to pay more attention to this type of companies.

Tot he best of the authors’ knowledge, this is the first paper to research entry timing and its outcome for market leadership with regard to niche players or hidden champions-type of firms. It introduces an original taxonomy to operationalize and distinguish between hard and soft measures to leverage advantage mechanisms related to market entry timing.

The purpose of this paper is to better understand how and why adoption and implementation of healthcare IT innovations occur. The authors examine two IT applications, computerised physician order entry (CPOE) and picture archiving and communication systems (PACS) at the meso and micro levels, within the context of the National Programme for IT in the English National Health Service (NHS).

To analyse these multi-level dynamics, the authors blend Rogers’ diffusion of innovations theory (DoIT) with Webster’s sociological critique of technological innovation in medicine and healthcare systems to illuminate a wider range of interacting factors. Qualitative data collected between 2004 and 2006 uses semi-structured, in-depth interviews with 72 stakeholders across four English NHS hospital trusts.

Overall, PACS was more successfully implemented (fully or partially in three out of four trusts) than CPOE (implemented in one trust only). Factors such as perceived benefit to users and attributes of the application – in particular speed, ease of use, reliability and flexibility and levels of readiness – were highly relevant but their influence was modulated through interaction with complex structural and relational issues.

Results reveal that combining contextual system level theories with DoIT increases understanding of real-life processes underpinning implementation of IT innovations within healthcare. They also highlight important drivers affecting success of implementation, including socio-political factors, the social body of practice and degree of “co-construction” between designers and end-users.

The originality of the study partly rests on its methodological innovativeness and its value on critical insights afforded into understanding complex IT implementation programmes.

The study aims to explore and explain the affordances and constraints of two-mode virtual collaboration as experienced by a newly forming international research team.

This is self-reflective and action-oriented research on the affordances and constraints of two-mode virtual collaboration. In the spirit of professional development, the authors (nine researchers at different career stages and from various counties) engaged in a joint endeavour to evaluate the affordances and constraints of virtual collaborations in light of the recent literature while also researching the authors' own virtual collaboration during this evaluative task (mid-January–April 2021). The authors used two modes: synchronous (Zoom) and asynchronous (emails) to communicate on the literature exploration and recorded reactions and emotional responses towards existing affordances and constraints through a collective journal.

The results suggest both affordances in terms of communication being negotiable and evolving and constraints, particularly in forming new relations given tools that may not be equally accessible to all. Journaling during collaborations could be a valuable tool, especially for virtual collective work, because it can be used to structure the team supported negotiation and discussion processes, especially often hidden processes. It is evident that the role of a leader can contribute to an alignment in the assumptions and experiences of trust and consequently foster greater mutual understanding of the circumstances for productive team collaborations.

The findings of this study can inform academics and practitioners on how to create and facilitate better opportunities for collaboration in virtual teams as a rapidly emerging form of technology-supported working.

This paper aims to examine the role of a large competitor’s entry and level of innovativeness in consumer adoption of new products.

This paper is based on a comparison between market uncertainty and technological uncertainty. This paper henceforth defines and analyzes the following key factors affecting the purchase intention of small- and medium-sized enterprise (SME) new products: type of new products and entry of large competitors. The study further verifies mediator variables that exert impacts: uncertainties regarding both technology and market.

The findings are as follows: purchase intention of SME new products does vary according primarily to the product types and entry of large competitors. More specifically, the entry of large competitors reduces uncertainties about really new products, thereby positively affecting SME new products.

There was no causal relationship found, however, on incrementally new products. Further findings clarify that the mediator variables affecting reciprocal interactions between purchase intention of SME new products and the entry of large competitors hold valid only for market uncertainties and not for technological uncertainties.

The purpose of this paper is to present an overview of the flash crash, and explain why and how it happened.

The author summarizes several studies suggesting various perspectives on the flash crash and its causes. Furthermore, the author highlights recently proposed and introduced improvements and regulations to reduce the risk of having similar market collapses in the future.

It is an overview paper that highlights the state of the art on the subject.

Paper does not report any research findings of the author.

High-frequency trading (HFT) along with its pros and cons is the new normal for most of the current electronic trading activity in the markets. It is well recognized by the experts that HFT may have its important shortcomings whenever the rules and regulations are not up to date to match the technological progress offering faster computational and execution capabilities.

HFT has created a societal discussion about its benefits and potential deficiencies as the common practice for trading due to potentially unequal access to market data by various categories of participants. Such arguments help the regulators to develop improvements to reduce the market risk and nurture more robust and fair markets for all.

The paper has a tutorial value and summarizes the current state of HFT. The readers of more interest are guided to the most relevant literature for further reading.

This paper aims to contend that populism is damaging to both domestic and international politics; not only does it erode liberal democracy in established democracies but also fuels authoritarianism in despotic regimes and aggravates conflicts and crises in international system.

The research is divided into two main sections. First, it examines how populist mobilization affects liberal democracy, and refutes the claims that populism is beneficial and reinforcing to democracy. Second, it attempts to demonstrate how populism is damaging to domestic politics (by undermining liberal democracy and supporting authoritarianism) as well as international relations (by making interstate conflicts more likely to materialize). Theoretically, populism is assumed to be a strategy used by politicians to maximize their interest. Hence, populism is a strategy used by politicians to mobilize constituents using the main features of populist discourse.

The research argues that populism has detrimental consequences on both domestic and international politics; it undermines liberal democracy in democratic countries, upsurges authoritarianism in autocratic regimes and heightens the level of conflict and crises in international politics. Populism can lead to authoritarianism. There is one major undemocratic trait shared by all populist waves around the world, particularly democracies; that is anti-pluralism/anti-institutions. Populist leaders perceive foreign policy as the continuation of domestic politics, because they consider themselves as the only true representatives of the people. Therefore, populist actors abandon any political opposition as necessarily illegitimate, with repercussions on foreign policy.

Some scholars argue that populism reinforces democracy by underpinning its ability to include marginalized sectors of the society and to decrease voter apathy, the research refuted these arguments. Populism is destructive to world democracy; populists are reluctant to embrace the idea of full integration with other nations. Populists reject the idea of open borders, and reckon it an apparent threat to their national security. The research concludes that populists consider maximizing their national interests on the international level by following confrontational policies instead of cooperative ones.