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Integration in Central European capital markets in the context of the global COVID-19 pandemic

100%
Pardal P., Dias R., Šuleř P., Teixeira N., Krulický T.
Equilibrium. Quarterly Journal of Economics and Economic Policy
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2020
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vol. 15
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issue 4
627-650
EN
Research background: Covid-19 pandemic had a strong impact on the economy and capital market. In times of crisis, it is important for investors to be able to diversify their investment portfolio in order to mitigate risk. However, the growing trend towards capital market integration may make it ineffective. Research on financial integration, during the Covid-19 period, has started to develop, mainly in major global capital markets. It is, therefore, important to extend this research to other capital markets. The purpose of the article: This contribution aims to analyze financial integration in the stock indexes of the capital markets of Austria (ATX), Slovenia (SBITOP), Hungary (BUDAPEST SE), Lithuania (OMX VILNIUS), Poland (WIG), the Czech Republic (PX PRAGUE), Russia (MOEX) and Serbia (BELEX 15), in the context of the global pandemic (COVID-19). Methods: To measure the unit roots in the time series, we used ADF, PP, and KPSS tests, and Clemente et al. (1998) test to detect structural breaks. To ana-lyse financial integration, we applied the Gregory and Hansen integration test, and to validate the robustness of results, we use the impulse-response function (IRF) methodology, with Monte Carlo simulations, as they provide a dynamic analysis generated from the VAR model estimates. Findings & Value added: The results suggest very significant levels of integration, which decreases the chances of portfolio diversification in the long-term. Evidence shows 47 pairs of integrated stock market indexes (out of 56 possible). The stock indexes ATX, BUDAPESTE SE, BELEX 15 show financial integration with all other indexes. On the contrary, the index of OMX VILNIUS shows only 3 integrations. Results also show that most of the significant structural breaks occurred in March 2020. The analysis of the relationship between markets, in the short term, shows positive/negative co-movements, with statis-tical significance and with a persistence longer than one week.
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Efektywność wprowadzenia do portfelawybranych certyfikatów strukturyzowanychtypu tracker

100%
Magdalena Walczak M.
Zeszyty Naukowe Wyższej Szkoły Bankowej we Wrocławiu
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2013
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issue 2(34)
435-449
PL
W artykule przeanalizowana została opłacalność wprowadzenia do portfela rynkowego GPW wybranych inwestycji towarowych reprezentowanych przez serie certyfikatów strukturyzowanych. Na podstawie uzyskanych wyników można przyjąć, że przy użyciu tych instrumentów możliwa jest dywersyfikacja i obniżenie ryzyka portfela mierzonego warunkowym odchyleniem standardowym, przy czym efekt ten jest najwyraźniej obserwowany w okresie, w którym indeks giełdy odnotowuje spadki.
EN
In the article the profitability from adding a commodity investments (represented by a series of structured products) into WSE market portfolio is examined. As based on the obtained results it can be assumed that using these instruments it is possible to diversify and reduce portfolio risk measured by conditional standard deviation, and the effect of it is the most widely observed in the period in which the stock market index declines.
3
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Does simultaneous investing on different stock markets allow to diversify risk? The cointegration analysis with main focus on Warsaw Stock Exchange

86%
Misiuk A., Zajkowska O.
Metody Ilościowe w Badaniach Ekonomicznych
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2010
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vol. 11
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issue 1
118-127
EN
This paper aims at examining the bilateral linkage between daily stock market indices, in which the leading index of WSE (WIG20) is the reference. Thus, the study is limited to pairs including WIG20 and indices which are listed on the financial centers of WSE’s main foreign investors. The relationship between the markets is investigated throughout the cointegration theory. Further, the Granger causality is carried out in order to distinguish the directions of influence across the stock market environments. The obtained results shall explain the investor’s tendencies in portfolio diversification.
4
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Art as an investment in Poland - the first 20 years after the collapse of the central planning economy

86%
Potocki T., Rogozińska A.
Finansowy Kwartalnik Internetowy e-Finanse
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2015
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vol. 11
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issue 3
22-33
EN
The article aims at answering the following research question: is the Polish art market mature enough to look at art investment as an important element of portfolio diversification? To provide an answer, the Authors analyzed auctions in Poland from the period 1991-2010, which were published by Art&Business magazine. The number of the analyzed records amounted to 28951. The conclusions may be valuable for researchers specializing in art economics, investors dealing with wealth transfer, financial advisors offering financial products as well as for policy makers responsible for providing institutional infrastructure essential for development of the Polish art market.
5
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Random walks and market efficiency tests: evidence on US, Chinese and European capital markets within the context of the global Covid-19 pandemic

86%
Dias R., Teixeira N., Machova V., Pardal P., Horak J., Vochozka M.
Oeconomia Copernicana
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2020
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vol. 11
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issue 4
585-608
EN
Research background: Covid-19 has affected the global economy and has had an inevitable impact on capital markets. In the week of February 24-28, 2020, stock markets crashed. The index FTSE 100 decreased 13%, while the indices DJIA and S&P 500 fell 11-12%, the biggest drop since the 2007-2008 financial and economic crisis. It is therefore of interest to test the random walk hypothesis in developed capital markets, European and also non-European, in order to understand the different predictabilities between them. Purpose of the article: The aim is to analyze capital market efficiency, in its weak form, through the stock market indices of Belgium (index BEL 20), France (index CAC 40), Germany (index DAX 30), USA (index DOW JONES), Greece (index FTSE Athex 20), Spain (index IBEX 35), Ireland (index ISEQ), Portugal (index PSI 20) and China (index SSE) for the period from December 2019 to May 2020. Methods: Panel unit root tests of Breitung (2000), Levin et al. (2002) and Hadri (2002) were used to assess the time series stationarity. The test of Clemente et al. (1998) is used to detect structural breaks. The tests for the random walk hypothesis follows the variance ratio methodology proposed by Lo and MacKinlay (1988). Findings & Value added: In general, we found mixed confirmation about the EMH (efficient market hypothesis). Taking into account the conclusions of the rank variance test, the random walk hypothesis was rejected in the case of stock indices: Dow Jones, SSE and PSI 20, partially rejected in the case indices: BEL 20, CAC 40, FTSTE Athex 20 and DEX 30, but accepted for indices: IBEX 35 and ISEQ. The results also show that prices do not fully reflect the information available and that changes in prices are not independent and identically distributed. This situation has consequences for investors, since some returns can be expected, creating opportunities for arbitrage and for abnormal returns, contrary to the assumptions of random walk and information efficiency.
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