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Wyświetlanie 1-15 z 84
Tytuł:
Preparation of functionalized graphene oxide coatings on gold
Autorzy:
Trzaskowski, M.
Ciach, T.
Powiązania:
https://bibliotekanauki.pl/articles/285667.pdf
Data publikacji:
2016
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
gold
coatings
graphene oxide
Źródło:
Engineering of Biomaterials; 2016, 19, 138; 88
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Photochemical production of gold films on the surface of fabric materials
Autorzy:
Abdurazova, Perizat
Sataev, Malik
Kenzhibayeva, Gulmira
Koshkarbayeva, Shayzada
Amanbayeva, Kalamkas
Raiymbekov, Yerkebulan
Powiązania:
https://bibliotekanauki.pl/articles/779051.pdf
Data publikacji:
2020
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
gold
nanoparticle
antibacteria
fabric
Opis:
A technology for producing gold films on the surface of fabric materials has been developed, which provides for preliminary wetting of the fabric product with aqueous solutions of gold (III) chloride. In this case, a sorption layer of gold chloride is formed on the surface of fabric materials. Then, when drying these products under sunlight, physicochemical and photochemical processes occur, leading initially to the formation of monovalent gold chlorides, which, having semiconductor properties, provide the release of elemental gold. After washing of by-products on the surface of the material remains an ultra-thin film of gold, which has a sufficiently strong grip on the base. Since the proposed technology does not require special equipment it can be used to apply functional films of gold on various products of technical, household and medical purposes.
Źródło:
Polish Journal of Chemical Technology; 2020, 22, 4; 28-30
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Orogeniczne żyłowe złoża złota i ich rozsypiska a największe światowe gorączki złota w drugiej połowie XIX wieku w Ameryce i Australii
Orogenic lode gold deposits and placers and the world’s largest Gold Rushes in the second half of 19exp.th century in America and Australia
Autorzy:
Mikulski, S. Z.
Powiązania:
https://bibliotekanauki.pl/articles/2074655.pdf
Data publikacji:
2009
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
złoto
złoże okruchowe
gorączka złota
gold
placer
orogenic lode
gold rush
Opis:
The paper presents geological, ore-mineralogical and economic characteristics of the goldfields in the Western USA (California and Yukon) and Australia (Bendigo-Ballart and Kalgoorlie regions). Moreover, common geological features of these areas, which were the place of modern Gold Rushes from the second half of 19th c. to the beginning of 20th c. are also described. Thanks to discovery of gold, these inhabited areas became the land of promise for millions of people and gold production contributed to economy of the fast growing nations. The first period of Gold Rushes began in California (USA) and Bendigo-Ballart region in Victoria (Australia) in 1848 and 1851, respectively. Placer gold was discovered first in Cenozoic alluvial sediments and subsequently in auriferous quartz lodes, which were the source of detrital gold. The detrital sediments appeared extremely rich in gold nuggets. The biggest nuggets, ca. 65.2 and 24.5 kg in weight, have been found in Bendigo and California, respectively. Placer gold production during the Gold Rush in California from 1848 to 1864 is estimated at ca. 1300 Mg Au. Since 1850, prospectors begun to discover numerous gold-bearing quartz veins (Mother Lode system) along the Sierra Nevada in California. These auriferous lodes gave over 1100 Mg of gold. In Bendigo-Ballart goldfields about 480 Mg of gold was extracted from placers and 260 Mg goldfrom from auriferous quartz veins in the years 1851–1861. The second period of modern Gold Rushes took place again in America (Yukon) in 1896 and in the Western Australia (Kalgoorlie) in 1893. In Yukon, gold was mainly extracted from Cenozoic river’s gravels (> 311 Mg) and in Kargoorlie—mainly from auriferous quartz-carbonate lodes. Some of goldfields with auriferous lodes discovered in 19th c. are still in production. Best example is here the Kargoorlie deposit that became recently the 3rd largest world producer of gold (> 1600 Mg Au). Gold production from lodes in California, Bendigo-Ballart and Kalgoorlie is roughly estimated at > 4000 Mg. Gold-bearing lodes formed as results of migration of fluids of various origin and gold precipitation in the upper crust within post-collisional tectonic settings. These lodes belong to orogenic type of gold deposits hosted by greenstone schist belts in metamorphic terranes of various age. Primary gold is bound mostly by auriferous sulphides—arsenopyrite and pyrite and as native gold which infills fractures in quartz and breccias. In California, Yukon and Victoria, rich placers were formed in the Cenozoic during exhumation of metamorphic terranes hosting auriferous gold lodes.
Źródło:
Przegląd Geologiczny; 2009, 57, 12; 1048-1056
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rola państwa w zagospodarowaniu niektórych surowców - wybrane przykłady
Role of the state in mineral commodities management-case studies
Autorzy:
Solecki, A.
Powiązania:
https://bibliotekanauki.pl/articles/170838.pdf
Data publikacji:
2018
Wydawca:
Poltegor-Instytut Instytut Górnictwa Odkrywkowego
Tematy:
złoto
guano
bursztyn
gold
amber
Opis:
Przedstawiono historyczne przykłady rozwiązań organizacyjno-prawnych związanych z eksploatacją surowców mineralnych. Wybrane przykłady obejmują złoto, guano i bursztyn i ilustrują problemy prawno-społeczne związane zarówno z występowaniem surowców poza obszarem suwerenności danego państwa jak i problemy związane z trudną do udokumentowania zasobów formą występowania złóż. Opisane rozwiązania obejmują zarówno pełną liberalizację poszukiwań i wydobycia małych złóż okruchowych (złoto; Rosja, USA) jak i militarne i polityczne wsparcie państwa przy akwizycji obszarów perspektywicznych (guano; USA). Szczególną uwagę poświęcono bursztynowi dla którego zaproponowano rozważenie możliwości liberalizacji podobnej do stosowanej w przypadku małych złóż złota w Rosji, zarówno carskiej jak i posowieckiej.
Historical examples of organizational and legal solutions related to the exploitation of mineral resources are presented. Selected examples include gold, guano and amber and illustrate legal and social problems related to both the occurrence of raw materials outside the sovereignty of a given country, as well as problems related to the difficulties in evaluation of resources. The solutions described include both full liberalization of exploration and exploitation of small placer deposits (gold, Russia, USA) as well as military and political support of the state in the acquisition of prospective areas (guano, USA). Particular attention was paid to amber, for which it was proposed to consider the possibility of liberalization similar to that used for small gold deposits both in Tsarist and post-Soviet Russia.
Źródło:
Górnictwo Odkrywkowe; 2018, 59, 3; 10-14
0043-2075
Pojawia się w:
Górnictwo Odkrywkowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fast Neutron Activation Analysis of gold by inelastic scattering, 197Au(n,ngamma)197Aum, by means of Plasma Focus device
Autorzy:
Verri, G.
Mezzetti, F.
Da Re, A.
Rapezzi, L.
Gribkov, V.
Powiązania:
https://bibliotekanauki.pl/articles/146754.pdf
Data publikacji:
2000
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
activation
gold
neutron
plasma focus
Opis:
The application of a Fast Neutron Activation Analysis (FNAA) technique on samples of pure gold, irradiated by a plasma focus of 7 kJ, has been investigated. The reaction was the inelastic scattering of neutrons, 197Au(n,n'gamma)197Aum. To avoid problems connected with peculiar features of the neutron emission from this kind of source, a preliminary standardisation of the method has been carried out. The results obtained have a practical interest in view of possible applications to the technology of extraction of minerals.
Źródło:
Nukleonika; 2000, 45, 3; 189-191
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
INWESTYCJA W ZŁOTO – BEZPIECZNA PRZYSTAŃ, ZABEZPIECZENIE CZY ŹRÓDŁO DYWERSYFIKACJI DLA POLSKIEGO INWESTORA
Investment in gold - safe haven, hedge or source of diversification for Polish investor
Autorzy:
Potrykus, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/950639.pdf
Data publikacji:
2015
Wydawca:
Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Tematy:
safe haven
gold
investing
diversification
Opis:
The article describes the concept of the hedge, diversifier and safe haven investments. The main goal of this study is to examine whether there are links between the rates of return achieved on the Warsaw Stock Exchange (WSE) and rates of return on investments in gold. The author tested following hypothesis: the return on investment in gold acts as a hedge investment in the long term in relation to investments in the WSE main index, and at a time when investment in the WSE main index recorded a negative rate of return, investment in gold is a safe haven investment. To verify the hypothesis the author uses correlation coefficients and his own measure. The main conclusion from the research is that investing in gold acts as a safe haven investment for the investor which invests on the WSE.
Źródło:
Financial Sciences. Nauki o Finansach; 2015, 3(24); 193-207
2080-5993
2449-9811
Pojawia się w:
Financial Sciences. Nauki o Finansach
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of leaching kinetics modelling to a gold cyanide leach plant by using real plant data
Autorzy:
Sayiner, B.
Powiązania:
https://bibliotekanauki.pl/articles/109738.pdf
Data publikacji:
2015
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
gold
cyanide
leach
kinetics
model
Opis:
Gold cyanide leach kinetics modeling was applied to the Bergama Ovacik gold cyanide leach plant in Turkey by processing the real plant data without need of any laboratory work. For this aim, solid ore samples were taken from each leaching tanks and analysed for gold contents as Au ppm while plant variables such as solid % concentrations in each tank, feed rate of plant as megagrams per hour (Mg/h), slurry flow rate as m3/h and the slurry residence times in each tank calculated and noted for modelling study. Five sampling work performed at plant at different times. Each sampling data were modelled seperately by the Anglo-American Research Laboratories (AARL) leach kinetics model to obtain five seperate model parameters and regression coefficient (R2) values. Then, total five sampling data were all together modelled to obtain just one model equation and R2 value to represent the plant generally. All R2 values were above 0.90 indicating that the AARL gold leaching kinetics model fits well on real plant leaching conditions. By using the model parameters, the residual gold contents in each tank were predicted for different possible ore feed rate tonnages such as 80, 90, 100, 110 and 120 megagrams per hour. Thus, leaching recoveries for any ore feed rate would be estimated for possible tonnage increases in the future.
Źródło:
Physicochemical Problems of Mineral Processing; 2015, 51, 1; 109-114
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Identification and Correlation Test of Mercury Levels in Community Urine at Traditional Gold Processing Locations
Autorzy:
Lensoni
Adlim, M.
Kamil, Hajjul
Karma, Taufiq
Suhendrayatna
Powiązania:
https://bibliotekanauki.pl/articles/24201654.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
urine
society
gold
mercury
mine
Opis:
Gold processing activities in Paya Seumantok Village, Krueng Sabee District, Aceh Jaya Regency, are known to utilize traditional mercury, posing a health threat to the workers and the local community. This study aims to identify local people’s urinary mercury levels near the gold processing plant in Paya Seumantok Village and to see the relationship between mercury levels and disease symptoms exhibited by the local people. To this end, ninety-one participants were recruited from a total member of a population of 928 people, determined using Slovin’s formula. The urine sample was collected using a purposive sampling technique following the procedure set by the regulation of the Minister of Health no. 43/2013. AAS Instrument was used to analyze the urinary mercury level. Sixteen out of 91 urine samples exhibited no mercury, while the rest, 75 samples, were found to contain mercury. The average urinary mercury level among local people near the site was 8.392 μg/L (SD: 6.721 g/L), while the minimum and maximum urinary mercury levels in this study were 0.19 μg/L and. 28.31 μg/L, respectively. Thirty-six samples were found to have mercury levels exceeding the acceptable threshold (7 μg/L), while thirty-nine samples had urinary mercury levels below the threshold. This study concluded that there is no relationship between urinary mercury levels and symptoms of acute and chronic diseases experienced local community and workers at the gold processing site in Paya Seumantok Village, Krueng Sabee District, Aceh Jaya Regency (p > 0.05).
Źródło:
Journal of Ecological Engineering; 2023, 24, 3; 357--365
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Inwestycje w złoto jako zabezpieczenie przed inflacją w Polsce
Autorzy:
Kasprzak-Czelej, Anna Barbara
Powiązania:
https://bibliotekanauki.pl/articles/610998.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
gold
inflation
hedging
złoto
inflacja
Opis:
This study analyzes the question whether direct gold investments provide the ability of hedging against inflation in Poland. Using monthly data on the price of gold and selected inflation measures during the period January 2007 – April 2015 the cointegration tests and the cross-correlations were conducted. The results suggest that investments in gold has not served as a hedge against fluctuations in the internal purchasing power of the Polish zloty.
W niniejszym artykule, celem ustalenia, czy bezpośrednie inwestycje w złoto mogą zabezpieczyć przed spadkiem wewnętrznej siły nabywczej PLN, przeprowadzono z wykorzystaniem miesięcznych danych z okresu styczeń 2007 r. – kwiecień 2015 r. analizę kointegracji oraz korelacji z opóźnieniami. Uzyskane wyniki sugerują brak możliwości zabezpieczania się przed inflacją w Polsce przez fizyczne nabycie złota. 
Źródło:
Annales Universitatis Mariae Curie-Skłodowska, sectio H – Oeconomia; 2015, 49, 4
0459-9586
Pojawia się w:
Annales Universitatis Mariae Curie-Skłodowska, sectio H – Oeconomia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Recovery of gold (III), palladium (II) and platinum (IV) ions from chloride solutions on the solvent impregnated resin (SIR) — Dowex Optipore L493
Autorzy:
Wójcik, G.
Hubicki, Z.
Górska, M.
Powiązania:
https://bibliotekanauki.pl/articles/115536.pdf
Data publikacji:
2011
Wydawca:
Fundacja na Rzecz Młodych Naukowców
Tematy:
gold
platinum
palladium
solvent impregnated resins
Opis:
The method described in this paper using Dowex Optipore L493 for removal of gold (III), palladium (II), and platinum (IV) ions from hydrochloric solutions is found effective for separation of gold, palladium and platinum. There were carried out laboratory studies of selective removal of platinum (IV), gold (III) and palladium (II) microquantities from 0.1–6 M hydrochloric on the solvent impregnated highly cross-linked styrenic polymer, Dowex Optipore L493 using Cyanex 301. In these experiments the recovery factors % R of gold (III), palladium (II) and platinum (IV) depending on phases contact time were obtained. The gold, palladium and platinum concentrations were determined by the AAS method.
Źródło:
Challenges of Modern Technology; 2011, 2, 3; 38-40
2082-2863
2353-4419
Pojawia się w:
Challenges of Modern Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Badania mineralogiczno-geochemiczne złota z Podlesia-Gęstwiny w Górach Złotych, Dolny Śląsk, Polska
Mineralogical and geocehmical investigation of gold from Podlesie - Gęstwina in Golden Mountains, Lower Silesia, Poland
Autorzy:
Pawlikowski, M.
Czarnecka, K.
Powiązania:
https://bibliotekanauki.pl/articles/344070.pdf
Data publikacji:
2018
Wydawca:
nakł. Maciej Pawlikowski
Tematy:
złoto
Góry Złote
gold
Golden Mountains
Opis:
Przeprowadzono badania mineralogiczne ziarn zlota wystepujących w piaskach i żwirach wPodleciu-Gęstwinie w Górach Złotych. W badaniach wykorzystano mikroskopie skaningową i spektroskopie (EDS). Stwierdzono wysoką czystośc złota i śladowe domieszki Mg, Pb. Ag i F. Wykonano także oznaczenia składu petrograficznego skał w których występuje badane złoto. Stwioerdono, że zbudowane są one głównie z ziarn amfibolitów, gnejsów i róznych odmian łupków metamorficznych.
Mineralogical investigation of small grains of gold present at sands and gravels of Podlesie-Gestwina (Golden Mountains- South Poland) were performed using SEM and EDS methods. Results document high concentration of gold and small admixture og Mg, Pb, Ag, and F. Petrographic compozition of sediments was determined too. The main component is represented by metamorphic rocks (amphiobolites, gnaisess and metamorphic shists.
Źródło:
Auxiliary Sciences in Archaeology, Preservation of Relics and Environmental Engineering; 2018, 25; 141-150
1689-6742
Pojawia się w:
Auxiliary Sciences in Archaeology, Preservation of Relics and Environmental Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Black Market – Financial Crimes Committed for Personal Purposes
Autorzy:
Miłosz, Jan
Powiązania:
https://bibliotekanauki.pl/articles/1390726.pdf
Data publikacji:
2017-02-07
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
black market
gold
currency
smuggle
speculation
Opis:
In socialist Poland, in the reality of centrally planned economy, average citizens experienced chronic deficits of basic commodities. Although the intensity of the problem varied, at no time could one say that the official market fully satisfied the demand for basic or luxurious goods sought by citizens. On the one hand, the market was steered manually, prices were set and kept on the same level for many years, and the volume of production and its cost was centrally planned, but on the other hand, salaries in national companies were raised, which resulted in unsatisfied demand for the goods that the official market lacked. How, then, did average citizens deal with these problems? How, by committing more or less serious financial crimes, did they become players in the black market game, the stake of which was satisfying their own needs? This article attempts at describing the situation in this specific market in various periods of socialist Poland. It also tries to demonstrate which products were the most desirable and most often sold in the black market. Most citizens of socialist Poland, knowing that their behavior is against the law, limited their participation in the black market to purchasing or selling the most urgently needed products.
Źródło:
Studia Historiae Oeconomicae; 2016, 34; 45-62
0081-6485
Pojawia się w:
Studia Historiae Oeconomicae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Microanalysis study of Al-Amar rock and leaching behavior of its tailings for recovery of gold and silver
Autorzy:
Mahmoud, M. H. H.
Awad, H. M.
Altalhi, T.
Powiązania:
https://bibliotekanauki.pl/articles/109620.pdf
Data publikacji:
2018
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
gold
silver
tailings
mineralogy
extraction
thiosulfate
Opis:
Some Saudi gold ores, such as that at Al-Amar mine, suffer from low leaching efficiency using the toxic cyanidation process. Only about 60% of the gold and 26% of the silver in the feed ore can be extracted at 0.2% CN– after 24 h and the rest percentages of these metals remained in leaching residues (tailings). These tailings contained 1.1 ppm Au and 4.3 ppm Ag. Reprocessing of tailings serves both for economic and environmental reasons. A petrography analysis of the mineral constituents indicated that the rock samples consisted primarily of sphalerite, chalcopyrite, pyrite and galena in decreasing order of abundance. An electron probe microanalysis quantitatively showed that gold and silver were finely distributed in the grain boundaries and within sphalerite, chalcopyrite, pyrite, and quartz. The dissemination of gold and silver in these hard minerals may be the main reason for their low recovery by cyanidation. Open air roasting of the tailings can release amounts of the disseminated gold and silver which can be extracted during leaching with the harmless thiosulfate ion S2O32–. After studying the different parameters, we found that the maximum possible extraction of gold and silver from the tailings roasted for 2 h at 400°C reached about 50% at 0.2 M ammonium thiosulfate, 0.3 M ammonium hydroxide, solid–liquid ratio ½ for 24 h. These achievements represent a possible exploitation of the accumulated 1.65 million Mg tailing waste containing significant amounts of gold and silver valued at about $73 million.
Źródło:
Physicochemical Problems of Mineral Processing; 2018, 54, 2; 527-537
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Preg-robbing of gold in chloride-bromide solution
Autorzy:
Ahtiainen, R.
Lundstrom, M.
Powiązania:
https://bibliotekanauki.pl/articles/110931.pdf
Data publikacji:
2016
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
gold
leaching
pre-robbing
hydrometallurgy
carbon
Opis:
One of the major issue in gold chloride leaching is a tendency of gold to either precipitate or adsorb on a carbonaceous matter in an ore, i.e. preg-robbing. This paper discusses issues related to a preg-robbing phenomenon in gold hydrometallurgy, specifically in gold chloride-bromide leaching. This phenomenon has been observed in the 1800s to decrease gold recovery during gold chlorination as well as the state-of-art of gold cyanidation processes. The experiments were conducted in order to study the preg-robbing phenomenon in chloride-bromide media. The tendency of preg-robbing was demonstrated by adding carbon in a non-preg-robbing ore. It was shown that the preg-robbing tendency in the chloride-bromide media was very strong. Addition of 0.01% w/w of carbon powder into the non-preg-robbing ore decreased gold recovery from 92 to 70% and addition 5% w/w of carbon decreased gold recovery to almost zero.
Źródło:
Physicochemical Problems of Mineral Processing; 2016, 52, 1; 244-251
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Is Gold as an Alternative Investment a Good Solution During Pandemic?
Autorzy:
Juras, Alicja
Powiązania:
https://bibliotekanauki.pl/articles/1878742.pdf
Data publikacji:
2021-09-30
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
alternative investments
gold
pandemic
safe havens
Opis:
The aim of the article: The crisis, both in the economic and financial markets, can lead to a sudden downturn and a loss of savings. For this reason, during a crisis, safe investments are essential to reduce risks and avoid losses. This year’s coronavirus pandemic has caused a lot of confusion in the financial and investment world as well.The pandemic led to turbulence in the financial market and made investors look for the so-called safe havens. In the literature, these havens often include alternative investments with a high demand for gold. This article aims to check the validity of using gold as an investment during a pandemic. Methodology: In the paper, in order to achieve the formulated aim, the following stages were carried out: critical analysis of the literature regarding the factors influencing investment decisions and the characteristics alternatives instruments. The last stage was based on statistical analysis using the Pearson correlation method. Gold prices were compared with quotations of two price indexes: WIG20 and S&P500. Results of the research: The conducted analysis shows that gold as an alternative investment is a good hedge in times of crisis, therefore, it is also the case during ongoing pandemic. Alternative assets fulfill a hedging function, minimizing the risk of losses. Moreover, thanks to a negative correlation with the market, they give a possibility to increase investors’ capital in times of crisis.
Źródło:
Finanse i Prawo Finansowe; 2021, 3, 31; 79-88
2391-6478
2353-5601
Pojawia się w:
Finanse i Prawo Finansowe
Dostawca treści:
Biblioteka Nauki
Artykuł
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