Dariusz Karaś

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• Doctor of Economics Sciences in specialty of econometrics and behavioral economics
• Vice Dean at Cardinal Stefan Wyszyński University in Warsaw

Artykuł ma na celu ustalenie wpływu fluktuacji wskaźników makroekonomicznych na skłonności inwestycyjne przedsiębiorstw, mierzone wskaźnikiem intensywności inwestycji – zdefiniowanym jako stosunek wydatków inwestycyjnych do całkowitych przychodów. Analiza obejmuje pięć sektorów przemysłu przetwórczego w Polsce (według Klasyfikacji Działalności PKD)...

Publikacja recenzowana Peer-reviewed publication Layout: Pracownia Register Cover: great_bergens / stock.adobe.com ISBN 978-83-8281-505-4 print 978-83-8281-506-1 ebook UKSW Publishing House Dewajtis 5, building No. 2

Despite a multitude of social campaigns and widely publicized scientific evidence of how excessive, unprotected sun exposure damages the skin and is a key cause of the skin cancer, people continue to crowd the beaches, oftentimes without any sunscreen protection. Also numbers of those who use sunscreen on a daily basis remain low. In this study, we...

Eco-innovation is an important factor of economic growth in the modern economy. For this reason, the European Union places great emphasis on analyzing the level of eco-innovation of member economies. An instrument used for this purpose is the Eco-Innovation Scoreboard, which illustrates how the level of eco-innovation in member countries differs fr...

The purpose of this study is to identify the economic effects of an incorrect level of the national currency exchange rate when entering the European monetary union. The analysis carried out includes the potential impact of a suboptimal currency exchange rate on the economy of a country entering the eurozone in the context of the conversion rate. A...

Celem opracowania jest wskazanie przydatności teorii gier w kontekście skuteczności analizy geopolitycznych problemów dla usprawnienia procesu decyzyjnego w odniesieniu do obszarów Arktyki. W artykule przedstawiono serię istotnych problemów arktycznych o zasięgu globalnym, a związanych z otwartym rybołówstwem, otwieraniem obszarów Arktyki na wydoby...

Numerous studies of adults indicate that people who perceive themselves as rich are less prosocial than those who describe themselves as belonging to the poorer classes. Furthermore the state of being rich or poor affects immoral behavior. Surprisingly little is known regarding whether having more or less resources affects children’s behavior towar...

p>Celem artykułu jest ustalenie wpływu atrybutów funduszy inwestycyjnych, takich jak wiek, wielkość funduszu oraz wielkość towarzystwa, do jakiego należy dany fundusz, na wysokość opłat pobieranych przez omawianych pośredników. W tym celu wykorzystano analizę regresji wielorakiej dla danych przekrojowych z wykorzystaniem trzech metod estymacji para...

This paper aims to find a possible long-term correlation between mutual funds’ performance and expenses. The examination was conducted by means of classical approaches of the time series analysis, such as the KPSS test for stationarity, the Engle-Granger approach to cointegration and the Johansen test. The study was conducted on the basis of a rela...

Making decisions in joint-stock company on stockholders meeting is an example of cooperative game. Cooperative game theory focuses on the coalition players may form. Voting at the general meeting of shareholders is a special kind of cooperative game. We assume each coalition may attain some payoffs, and then we try to predict which coalitions will...

Petrol market is very peculiar sector of economy. In Poland the biggest refineries are under control of government. This paper is first stage of analysis polish petrol market. By petrol market in this case we understand retail sale of fuel. The main purpose of this research is to analyze if cooperation between two biggest companies on market is pos...

Among problems analyzed by the modern management there are many behavioral facets of company performance, including employee positive relationships. Their importance for an organization efficiency increase is undeniable, however, there is still the lack of the more clear evidence of associations in this area. This article attempts to fill the gap....

The idea of the Shapley's value was to determine fair distribution of any profit on team common action to the overall profit for separate action. In this way we determine the solution of cooperative games. Making decisions in joint-stock company on stockholders meeting is also an example of cooperative game. Using Shapley's value we can measure the...

Compering fundamental models of game theory , such as “the prisoners dilemma” and “chicken game”, with economic situations, we can analize decisions taken by firms acting on the same market. Each player choose strategy, considering possible operations that can make other player. In result, we can explain competitors behavior and show how and when t...