Temporary staffing services: a data mining perspective

Research on the temporary staffing industry discusses different topics ranging from workplace safety to the internationalization of temporary labor. However, there is a lack of data mining studies concerning this topic. This paper meets this void and uses a financial dataset as input for the estimated models. Bagged decision trees were utilized to cope with the high dimensionality. Two bagged decision trees were estimated: one using the whole dataset and one using the top 12 predictors. Both had the same predictive performance. This means we can highly reduce the computational complexity, without losing accuracy

Temporary staffing services: a data mining perspective

Research on the temporary staffing industry discusses different topics ranging from workplace safety to the internationalization of temporary labor. However, there is a lack of data mining studies concerning this topic. This paper meets this void and uses a financial dataset as input for the estimated models. Bagged decision trees were utilized to cope with the high dimensionality. Two bagged decision trees were estimated: one using the whole dataset and one using the top 12 predictors. Both had the same predictive performance. This means we can highly reduce the computational complexity, without losing accuracy

Mining Fix Patterns for FindBugs Violations

In this paper, we first collect and track a large number of fixed and unfixed violations across revisions of software. The empirical analyses reveal that there are discrepancies in the distributions of violations that are detected and those that are fixed, in terms of occurrences, spread and categories, which can provide insights into prioritizing violations. To automatically identify patterns in violations and their fixes, we propose an approach that utilizes convolutional neural networks to learn features and clustering to regroup similar instances. We then evaluate the usefulness of the identified fix patterns by applying them to unfixed violations. The results show that developers will accept and merge a majority (69/116) of fixes generated from the inferred fix patterns. It is also noteworthy that the yielded patterns are applicable to four real bugs in the Defects4J major benchmark for software testing and automated repair.Comment: Accepted for IEEE Transactions on Software Engineerin

Internationalization and economic performance of enterprises: evidence from firm-level data

This paper provides evidence on the relative performance of internationalized firms using Polish firm-level data spanning over the period of 1996-2005. We distinguish between three modes of internationalization: exporting, importing of capital goods and foreign direct investment. Our results point strongly at superior performance of exporters vs. non-exporters importers vs. non-importers and foreign affiliates vs. domestic firms. We also find evidence for significant horizontal and backward productivity spillovers from all three types of international activity.internationalization; productivity; panel firm-level data

Social media as a data gathering tool for international business qualitative research: opportunities and challenges

Lusophone African (LA) multinational enterprises (MNEs) are becoming a significant pan-African and global economic force regarding their international presence and influence. However, given the extreme poverty and lack of development in their home markets, many LA enterprises seeking to internationalize lack resources and legitimacy in international markets. Compared to higher income emerging markets, Lusophone enterprises in Africa face more significant challenges in their internationalization efforts. Concomitantly, conducting significant international business (IB) research in these markets to understand these MNEs internationalization strategies can be a very daunting task. The fast-growing rise of social media on the Internet, however, provides an opportunity for IB researchers to examine new phenomena in these markets in innovative ways. Unfortunately, for various reasons, qualitative researchers in IB have not fully embraced this opportunity. This article studies the use of social media in qualitative research in the field of IB. It offers an illustrative case based on qualitative research on internationalization modes of LAMNEs conducted by the authors in Angola and Mozambique using social media to identify and qualify the population sample, as well as interact with subjects and collect data. It discusses some of the challenges of using social media in those regions of Africa and suggests how scholars can design their studies to capitalize on social media and corresponding data as a tool for qualitative research. This article underscores the potential opportunities and challenges inherent in the use of social media in IB-oriented qualitative research, providing recommendations on how qualitative IB researchers can design their studies to capitalize on data generated by social media.https://doi.org/10.1080/15475778.2019.1634406https://doi.org/10.1080/15475778.2019.1634406https://doi.org/10.1080/15475778.2019.1634406https://doi.org/10.1080/15475778.2019.1634406Accepted manuscriptPublished versio

What drives export performance of firms in Eastern and Western Poland?

We use a unique firm-level survey dataset that draws from the EFIGE (European Firms In Global Economy) questionnaire, to unveil differences in factors driving export performance in structurally most diverse areas of Poland. While conventional results about the role of size, foreign ownership and innovation activity are confirmed at the aggregate level, the picture breaks down when Western and Eastern macroregions are extracted. Our results suggest that the common perception of a more developed West (Poland “A”) and a backward East (Poland “B”) might be outdated. Rather, firms in both regions seem to follow distinct strategies and have dissimilar success factors for competing internationally. Interestingly, export performance in the East is found to benefit from family ties in business, but also product innovation and non-price competitiveness. In the West, it is in turn associated mostly with size and foreign ownership. Overall, our results on the one hand add support to the ‘New’ new trade theory and ‘New’ new economic geography’s premises related to the importance of microeconomic factors and, on the other, shed a new light on the pattern of regional development in Poland. We also discuss some implications for policy makers and managers and suggest directions of further research.National Science Centre, grant no. DEC-2011/03/D/HS4/0195

Transaction Costs and Export Intensification – The Cases of Poland and Hungary

The purpose of this paper is to explain if and how foreign sales are affected by the level of transaction costs within industries in Poland and Hungary. The main hypotheses reflect the potential correlation for different types of industries. The paper attempts to transfer the notion of transaction costs, originally applied at the micro-perspective level, to the analysis of industries using a mesoeconomic perspective. We argue that transactions cost levels influence the overall willingness to expand abroad. While there has been much research carried out in the area of export intensification of particular companies, few empirical studies can be found concerning entire industries

Experiences and opportunities in teaching ukrainian students at the faculty of mining and geoengineering in AGH University of Science and Technology

The paper presents the influence of various factors on the process of internationalisation of higher education in Poland, and particularly in AGH University of Science and Technology from the perspective of the Faculty of Mining and Geoengineering. It lays out educational opportunities for learners at mining and geology study courses, and the benefits stemming therefrom for international students, including students from Ukraine. Possibilities of academic exchange were discussed and that of international cooperation, in particular with Ukraine, in order to support the potential of science and higher education in both countries. Lastly, factors were indicated in favour of taking education with AGH

India's Outward Foreign Direct Investments in Steel Industry in a Chinese Comparative Perspective

Indian and Chinese enterprises have emerged as important outward investors in recent times with their involvement in a number of prominent Greenfield investments and acquisitions. The theory of international business posits that the ownership of some unique advantages having a revenue generating potential abroad combined with the presence of internalization and locational advantages leads to outward FDI. Conventional MNEs based in the industrialized countries have grown on the strength of ownership advantages derived from innovatory activity that is largely concentrated in these countries. It examines the case of steel industry that has become an important sector of overseas activity for Chinese and Indian companies with a string of major acquisitions of foreign MNEs for acquiring footprints and natural resources in order to identify the sources of ownership advantages and strategies of outward investments from emerging countries.FDI outflows, steel, India

Determinants of Productivity of Ukrainian Firms

This paper examines the determinants of total factor productivity (TFP) of Ukrainian firms in manufacturing and services, using micro-level data for the years 2005 and 2013. We first estimate regressions for the pooled dataset for the manufacturing and service sectors jointly, and then separately for each sector. Our empirical results show a positive link between the total factor productivity, intangible assets, capital intensity, firm size, competition in the industry, ownership status, and firm internationalization (exports and imports). In addition, we find that the determinants of productivity differ among the sectors and years of our sample