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Predatory publications in Scopus: evidence on cross-country differences
Macháček, Vít ; Srholec, Martin
The paper maps the infiltration of so-called “predatory” scholarly journals into the citation database Scopus. Using the names of “potential, possible, or probable” predatory journals and publishers on Beall’s lists, we derived ISSNs of the respective journals from Ulrichsweb and searched Scopus with it. A total of 324 matched journals with 164 thousand documents indexed in Scopus over 2015-2017, making up a share of 2.8 % of the total articles have been identified. An analysis of cross-country differences in the tendency to publish in these journals reveals that overall the most affected are middle-income countries in Asia and North Africa. Kazakhstan is the country with the largest tendency to publish in predatory journals (18 %). More than 5 % is reported in 20 countries, including large countries such as Indonesia (18 %), Malaysia (11 %), India (10 %), or Nigeria (7 %). Neither developed countries are resistant to predatory publishing. More than 16 000 “potentially predatory” articles were published by authors from United States (0.67 %).
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Machine learning-based approaches to forecasting international trade
Kovařík, Tomáš ; Semerák, Vilém (advisor) ; Macháček, Vít (referee)
In this thesis I focus on comparison of gravity model estimated with ordinary least squares and Poisson pseudo-maximum likelihood with regression techniques based on machine learning, namely support vector machines, random forests, and arti_cial neural networks. I discuss the advantages and disadvantages of these approaches and compare their forecasting accuracy on exports data. I demonstrate that random forest models and arti_cial neural networks provide superior forecasting accuracy.
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Active and Autonomous Approach to Health Care, Seeking an Ideal Insured
Macháček, Vít ; Remr, Jiří (advisor) ; Uherek, Zdeněk (referee)
The author of the thesis formulates theoretical starting points, which draws attention to the problems of the health care system. It emphasizes the role of the individual and describes the mechanism by which it is possible to naturally and freely intervene in the health insurance system. A key role in this mechanism is provided by health insurers, which have the potential to moderate the relationship of the insured with the health system. The health insurer can do so by segmenting their insured and product orientation. The construction of the "ideal insured" should contribute to the this segmentation. The construction is based on the active and autonomous approach of the insured, these qualities are highly valued in the theory presented and it is assumed that this approach is desirable in terms of prevention. The author has created a tool to measure this construct. The tool is in the form of a questionnaire that is systematicaly reduced to include as few items as possible so it can be easily used in practice. Practical usability is the primary goal of creating this instrument to measure "ideal insured".
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Local journals in Scopus
Macháček, Vít ; Srholec, Martin
The study provides answers to these questions in particular. What are the characteristics of Czech and Slovak journals indexed in Scopus? Which journals appear to be only local and which are, in contrast, international? How many predominantly local journals are published in comparable countries? Are there also journals which publish a large share of articles that originate from the home institution of their publisher? How does this vary by type of publisher and field of research? Who publishes research articles in these journals and why? Why do certain academics devote so much time to this type of publishing? What does this mean for research evaluation? What should be done about it in the future?
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Inside Beall’s lists
Macháček, Vít ; Srholec, Martin
The analysis confirms that the vast majority of journals implicated on Beall’s lists are scholarly marginal and often quite weird, which gives credibility to the suspicion that they are using non-standard editorial practices. Academics, who are concerned about their professional reputation, should better stay away from them. However, there are also enlisted journals that may not be predatory in the true sense. In particular, the list of publishers contains two important entries, namely Frontiers and Impact Journals, the accusation of which being predatory appears to be questionable. Relatively high citation impact scores coupled with large shares of authors from advanced countries in journals under these publishing houses vindicates the controversy. Jeffrey Beall in these verdicts challenges opinion of hundreds if not thousands researchers worldwide, who apparently read and quite frequently cite results reported in these journals.
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The Basic Income concept in the perspective of Agent-Based modelling
Macháček, Vít ; Janský, Petr (advisor) ; Malovaná, Simona (referee)
The Basic Income concept in the perspective of Agent-Based modelling Abstract: The thesis study the relationship between the basic income introduction and the price level. The basic income would replace the existing social security. The resulting redistribution induce changes in the aggregate demand through the concave consumption function. The aggregate demand in turn affect the price creation mechanism. Because the price level is a result of activity of many different agents with private motivation and information, the work used a simple macroeconomic agent-based model to isolate the relationship. The simulation however did not succeed in isolating the possible link between the price level and the basic income introduction.
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Predatory journals in Scopus
Macháček, Vít ; Srholec, Martin
The study maps the penetration of so-called “predatory” scholarly journals into the citation database Scopus. Predatory journals exploit the author pays open access model, and conduct only cursory or no peer review, despite claims to the contrary. Some such journals will publish almost anything for money. In the Czech context whether a journal is indexed in Scopus is crucial for determining the points that publications in that journal are awarded in the national performance-based evaluation of research organizations, which in turn is the basis for the allocation of institutional funding. Hence, in this evaluation framework, publishing in predatory journals that are indexed in Scopus has a clear “fiscal” advantage.
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Knowledge transfer through academic entrepreneurship in the Czech Republic
Macháček, Vít ; Srholec, Martin
The study brings first quantitative evidence on the scale and scope of knowledge transfer through academic entrepreneurship in the Czech Republic. The main finding is that Czech academics do not shy away from taking on entrepreneurial opportunities. Admittedly, this is in a sharp contrast with the image of weak entrepreneurial spirit in academia that prevails in general public based on statistics showing low payments of business enterprises for contractual research and licensing fees to research organizations. The results are discussed with regards to implications for public policy.
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