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Tytuł:
Effects of subchronic exposure to atrazine on zebrafish (Danio rerio)
Autorzy:
Plhalova, L.
Blahova, J.
Mikulikova, I.
Stepanova, S.
Dolezelova, P.
Praskova, E.
Marsalek, P.
Skoric, M.
Pistekova, V.
Bedanova, I.
Svobodova, Z.
Powiązania:
https://bibliotekanauki.pl/articles/31107.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
subchronic exposure
atrazine
zebra fish
Danio rerio
growth test
histopathology
triazine
herbicide
Opis:
The aim of this study was to investigate the effects of subchronic exposure to atrazine on fish growth and the development of histopathological changes in selected organs (gill, kidney, liver) in Danio rerio. Juvenile growth tests were performed on D. rerio according to OECD method No. 215. For 28 days, fish at an initial age of 30 days were exposed to the environmental atrazine concentration commonly detected in Czech rivers (0.3 μg/L) and a range of sublethal concentrations of atrazine (3.0, 30.0 and 90.0 μg/L). The results showed decreasing growth rates and morphological changes in the liver (dystrophic lesions of hepatocytes) at 90.0 μg/L of atrazine. The environmental concentration of atrazine in Czech rivers did not have any effect on fish growth and development of histopathological changes in D. rerio. The value of NOEC was 30.0 μg/L and the value of LOEC was 90.0 μg/L.
Źródło:
Polish Journal of Veterinary Sciences; 2012, 15, 3
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Tetrahymena spp. (Protista, Ciliophora) as Test Species in Rapid Multilevel Ecotoxicity Tests
Autorzy:
Gerhardt, Almut
Ud-Daula, Asad
Schramm, Karl-Werner
Powiązania:
https://bibliotekanauki.pl/articles/763499.pdf
Data publikacji:
2010
Wydawca:
Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
Tematy:
Biotest, biomarker, biosensor, population growth, toxicity test, risk assessment
Opis:
This review summarizes the application of Tetrahymena spp. in ecotoxicology, in order to promote a more integrated, multi-level ecotoxicological assessment approach regarding the effects of chemical stressors on several biological levels (from molecule to ecosystem). Such a multi-level testing approach in one species facilitates the establishment of missing causal relationships between biochemical responses and ecological effects. The review illustrates that Tetrahymena spp. represent excellent ecotoxicological test species due to their important role in the microbial foodweb, wide distribution and abundance, sequenced genome in T. thermophila, large background knowledge and scientific publications in cellular biology, ecology and ecotoxicology. Several bioassays have already been developed on different biological organisation levels, such as enzyme assays (biochemical level), behavioral tests (individual level), population growth tests (population level) and microcosms (community level). Moreover, specific mode-of-action based assays are available (e.g. genotoxicity), or are in development (e.g. endocrine disruption and neurotoxicity). Tetrahymena spp. combine traits of (1) a single cell, thus might replace or complement specific cell-line testing approaches, with traits of (2) a whole organism and population, thus allowing to study complete metabolic pathways and its consequences on population growth and genetic adaptation. Assays involving Tetrahymena spp. might easily be adapted for a rapid multi-level in situ or ex situ toxicity biosensor test system for ecologically relevant risk assessment.
Źródło:
Acta Protozoologica; 2010, 49, 4
1689-0027
Pojawia się w:
Acta Protozoologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The medicinal wood-decay species Laricifomes officinalis in the Alpe Veglia–Alpe Devero Natural Park (Italian Alps): spatial analysis and growth tests of pure cultures
Autorzy:
Girometta, Carolina Elena
Rovelli, Laura
Bracco, Francesco
Brescia, Francesca
Baiguera, Rebecca Michela
Chiatante, Gianpasquale
Picco, Anna Maria
Savino, Elena
Powiązania:
https://bibliotekanauki.pl/articles/11543426.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
wood decay fungi
Laricifomes officinalis
Larix decidua
biodiversity conservation
larch
spatial analysis
growth test
pure culture
natural park
Alps Mountains
Italy
Opis:
Laricifomes officinalis is a wood-decay fungus that is closely associated with old individuals of Larix decidua. In the twentieth century, L. officinalis was over-harvested because of its medicinal properties; consequently, it has become very rare or almost extinct in the Alps. In this study, we investigated the population of L. officinalis in the Alpe Veglia–Alpe Devero Natural Park (Val d’Ossola, Italy) to assess a preliminary conservation strategy. Population consistency was estimated using field mapping, and spatial analysis was performed on host trees based on topographical and environmental variables. Mycelia were isolated from harvested basidiomata, and strain identity confirmed by molecular analysis of the ITS region. All isolated strains were tested for growth in Petri dishes containing different standard media to determine which strains had the highest growth rates; the fastest growing strains may be selected for future studies and applications. Compared to the control strains from Val Malenco and Parco Nazionale del Gran Paradiso, all strains from Alpe Veglia–Alpe Devero Natural Park had lower growth rates. There was no significant difference between the growth rates of strains from Alpe Veglia and those from Alpe Devero. The results suggest that the population consistency of L. officinalis in the Alpe Veglia–Alpe Devero Natural Park is related to two main factors: habitat preservation and harvesting prohibition. These results confirm the need to protect L. officinalis both inside and outside natural reserves, despite the apparent increase in local populations.
Źródło:
Acta Mycologica; 2021, 56, 1; 569
0001-625X
2353-074X
Pojawia się w:
Acta Mycologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Experimental Chronic Exposure of the Foraminifer Pseudotriloculina rotunda to Zinc
Autorzy:
Nardelli, Maria Pia
Sabbatini, Anna
Negri, Alessandra
Powiązania:
https://bibliotekanauki.pl/articles/763435.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
Tematy:
foraminifera, zinc pollution, heavy metal, test deformations, survival, growth rates
Opis:
Miliolid (calcareous imperforated test) foraminifera have large diffusion all over the world in a wide range of marine environments, but their distributional pattern in relation to heavy metal pollution is not clearly understood yet. The aim of this study was to better understand the biological response of the miliolid species Pseudotriloculina rotunda to experimental chronic exposure at several zinc concentrations. The duration of the experiment was 10 weeks, and six different concentrations of zinc were tested between 0 and 100 mg/L. Increasing zinc concentrations led to increasing delay or to complete cease of the new chambers’ construction, with consequences on growth rates and affected vitality and biomass variations at medium to high concentrations. Moreover, our results showed that, even at high concentrations, zinc did not cause macroscopic test deformities due to anomalous arrangements of chambers.
Źródło:
Acta Protozoologica; 2013, 52, 3
1689-0027
Pojawia się w:
Acta Protozoologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Selected big cities of Poland as regional poles of growth
Autorzy:
Mroczek, Arkadiusz
Powiązania:
https://bibliotekanauki.pl/articles/546094.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Opolski
Tematy:
growth poles, Perroux, metropolises, metropolitan growth poles, Granger-causality test
bieguny wzrostu, Perroux, metropolie, metropolitalne bieguny wzrostu, test przyczynowości Grangera
Opis:
Idea biegunów wzrostu jest dobrze zakorzeniona w literaturze regionalistycznej. Bieguny mogą być różnie rozumiane, między innymi jako centralne obszary metropolitalne. Miasta tworzące takie obszary w Polsce rozwijają się szybko i można zadać pytanie, czy są one biegunami wzrostu dla swoich regionów. Aby się do niego odnieść, celem artykułu jest prezentacja rezultatów badania powiązań pomiędzy wzrostem gospodarczym miast i ich regionów. W badaniu wykorzystano test Grangera, który jest uważany za metodę przydatną w rozważaniach nad przyczynowością, przynajmniej w wąskim sensie, do jakiego się odnosi.  Rezultaty badania pokazują, że Poznań, Rzeszów i Wrocław (spośród piętnastu dużych polskich miast) mogą być uważane za regionalne bieguny wzrostu. Wyniki mogą być przydatne w pogłębieniu zrozumienia badanego zjawiska, jak i specyficznych warunków współczesnej polskiej gospodarki regionalnej.
The concept of growth poles is well established in regional economics. It can be considered in different scales, and big cities are one of them. In Poland, these cities are developing relatively fast. One of the questions that appear in this context is, if this growth can be connected with the growth of their regions, i.e. if they can be regarded as regional growth poles. To address it, the aim of the paper is to test if some selected big metropolitan areas of Poland work as poles of growth for their regions. This is performed using the Granger-causality test, which is one of the methods used to explore, at least in its specific sense, the causal relations between variables. The study shows, that Poznań, Rzeszów and Wrocław (out of fifteen big Polish cities) can be considered the growth poles for their regions. The results are useful to grasp the contemporary understanding of the concept, as well as the specific conditions of Polish regional growth.
Źródło:
Studia Miejskie; 2019, 34
2543-5302
2082-4793
Pojawia się w:
Studia Miejskie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
ON THE USE OF PANEL STATIONARITY TESTS IN CONVERGENCE ANALYSIS: EMPIRICAL EVIDENCE FOR THE EU COUNTRIES
Autorzy:
Próchniak, Mariusz
Witkowski, Bartosz
Powiązania:
https://bibliotekanauki.pl/articles/517309.pdf
Data publikacji:
2016
Wydawca:
Instytut Badań Gospodarczych
Tematy:
economic growth
convergence
catching up
stationarity
ADF test
Opis:
The study examines the concept of stochastic convergence in the EU28 countries over the 1994–2013 period. The convergence of individual countries’ GDP per capita towards the EU28 average per capita income level and the pair-wise convergence between the GDP of individual countries are both analyzed. Additionally, we introduce our own concept of conditional stochastic convergence which is based on adjusted GDP per capita series in order to account for the impact of other growth factors on GDP. The analysis is based on time series techniques. To assess stationarity, ADF tests are used. The study shows that the process of stochastic convergence in the EU countries is not as widespread as the cross-sectional studies on b or s convergence indicate. Even if we extend the analysis to examine conditional stochastic convergence, the number of converging economies or pairs of countries rises, but not as much as it could be expected from the cross-sectional studies.
Źródło:
Equilibrium. Quarterly Journal of Economics and Economic Policy; 2016, 11, 1; 77-96
1689-765X
2353-3293
Pojawia się w:
Equilibrium. Quarterly Journal of Economics and Economic Policy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Performance test results analysis of crossbred gilts produced in the Bydgoszcz Breeding Region
Analiza wyników testu wydajności loszek mieszańców wyprodukowanych w Bydgoskim Regionie Hodowli
Autorzy:
Michalska, G.
Nowachowicz, J.
Bucek, T.
Wasilewski, P.D.
Kmiecik, M.
Powiązania:
https://bibliotekanauki.pl/articles/961529.pdf
Data publikacji:
2017
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
crossbred gilts
performance test
growth rate
selection index
Opis:
The aim of this study was to analyse the results of performance test of crossbred gilts of Polish Large White and Polish Landrace breed conducted in years 2009–2013 in the Bydgoszcz Breeding Region. They came from two crossing variants (sows breed at first position): [PLW×PL] and [PL×PLW]. Crossbred gilts [PL×PLW] in all analysed years (except for 2001) had higher daily gain of body weight standardised on 180th day than [PLW×PL] animals. From 2009 till 2013 the growth rate of tested crossbred gilts, i.e. [PLW×PL] and [PL×PLW] increased by 10 and 8 g, respectively. Within the span of 5 years (2009–2013) an improvement of breeding value of animals determined as selection index value, which increased by 7 points in [PLW×PL] gilts and by 4 points in [PL×PLW] pigs. This proves the effective improvement of growth and slaughter performance of crossbred gilts coming from the Bydgoszcz Breeding Region within the space of years 2009–2013, being maternal component used in breeding and commercial crossing, which should be monitored in following years.
Źródło:
Acta Scientiarum Polonorum. Zootechnica; 2017, 16, 1
1644-0714
Pojawia się w:
Acta Scientiarum Polonorum. Zootechnica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
GLOBAL COMPETITIVENESS AND ECONOMIC GROWTH: A ONE-WAY OR TWO-WAY RELATIONSHIP?
Autorzy:
Kordalska, Aleksandra
Olczyk, Magdalena
Powiązania:
https://bibliotekanauki.pl/articles/517393.pdf
Data publikacji:
2016
Wydawca:
Instytut Badań Gospodarczych
Tematy:
Global Competitiveness Index
economic growth
panel Granger causality test
Opis:
The Global Competitiveness Index is treated as a standard to measure the competitiveness of countries. Leaders look at it to make policy and resource allocation decisions, because global competitiveness is expected to be related to economic growth. However, studies which analyze the empirical relationship between these two economic categories are very rare. It is still an open question in the literature whether economic growth can be used to predict future global competitiveness or the other way round. This paper empirically tests the relationship between the GCI and the economic growth rate by using a panel Granger causality analysis based on annual data for 114 countries divided into five groups by income criteria and covering the period 2006-2014. We confirm a strong unidirectional causality among the countries analyzed, i.e. GDP growth causes global competitiveness. Additionally, we find that the GCI is successful in predicting economic growth for the majority low income and OCED high income counties, but among the middle income countries this relationship exists only for large economies such as China and India.
Źródło:
Equilibrium. Quarterly Journal of Economics and Economic Policy; 2016, 11, 1; 121-142
1689-765X
2353-3293
Pojawia się w:
Equilibrium. Quarterly Journal of Economics and Economic Policy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Social and economic development of Ukraine: Modelling the migration factor impact
Autorzy:
Vasyltsiv, Taras
Mulska, Olha
Osinska, Oksana
Makhonyuk, Oleksandr
Powiązania:
https://bibliotekanauki.pl/articles/2131144.pdf
Data publikacji:
2022-10-07
Wydawca:
Uniwersytet Ekonomiczny w Poznaniu
Tematy:
economic growth
social development
migration
remittances
causality
Granger test
gaps
Opis:
The paper aims to analyse the dependence of the economic and social development of Ukraine on migration factors (human resources and remittances) in the years 2002–2020. It proves the strength of the impact of human resources outflow and remittances on the labour market (employment) and other variables capturing the level of economic and social development. Based on the calculated social and economic development composite indicators the paper detects the migration gaps in the development of the economic system and social domain depending on the human resources outflow and remittances inflow. The results of the empirical research show a positive causal relationship between social development environments and migration and a mixed impact of the migration factor on economic system.
Źródło:
Economics and Business Review; 2022, 8, 3; 27-58
2392-1641
Pojawia się w:
Economics and Business Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Extended Enders and Siklos test for threshold cointegration
Autorzy:
Osińska, Magdalena
Gałecki, Maciej
Powiązania:
https://bibliotekanauki.pl/articles/2082249.pdf
Data publikacji:
2022-06-30
Wydawca:
Główny Urząd Statystyczny
Tematy:
threshold error correction test
power
size
Monte Carlo
economic growth
Opis:
In our previous studies, we modified the Enders and Siklos test for threshold error correction to a version allowing the individual threshold variable to be responsible for the asymmetric mechanism of the system. The idea was to learn about the threshold mechanism both in the long and short run. In this paper, we tested for the asymmetry of the adjustment of the error correction mechanism towards the long-run path. The subsamples within regimes differ in size with respect to the threshold value. The novelty lies in the division of both short and long-run variables according to a threshold variable with a given threshold value (assumed or estimated). We named the test extended Enders and Siklos test (exE-S). The present study focuses on the power and size of the modified procedure. A simulation study was designed, computed and conducted. The results are favourable for the proposed approach, although they strongly depend on the difference in values between the adjustment parameters in the regimes.
Źródło:
Przegląd Statystyczny; 2022, 69, 1; 1-20
0033-2372
Pojawia się w:
Przegląd Statystyczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An Approach to Damage Detection in the Aircraft Structure with the Use of Integrated Sensors – The Symost Project
Autorzy:
Dragan, K.
Dziendzikowski, M.
Leski, A.
Dworakowski, Z.
Uhl, T.
Powiązania:
https://bibliotekanauki.pl/articles/97801.pdf
Data publikacji:
2012
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Lotnictwa
Tematy:
averaged damage index
full scale fatigue test
damage growth monitoring
Opis:
This paper presents an approach to damage growth monitoring and early damage detection in the structure of PZL – 130 ORLIK TC II turbo-prop military trainer aft using the statistical models elaborated by the Polish Air Force Institute of Technology (AFIT) and the network of the sensors attached to the structure. Drawing on the previous experiences of the AFIT and AGH in structural health monitoring, the present research will deploy an array of the PZT sensors in the structure of the PZL -130 Orlik TC II aircraft. The aircraft has just started Full Scale Fatigue Test (FSFT) that will continue up to 2013. The FSFT of the structure is necessary as a consequence of the structure modification and the change of the maintenance system - the transition to Condition Based Maintenance. In this paper, a novel approach to the monitoring of the aircraft hot-spots will be presented. Special attention will be paid to the preliminary results of the statistical models that provide an automated tool to infer about the presence of damage and its size. In particular, the effectiveness of the selected signal characteristics will be assessed using dimensional reduction methods (PCA) and the so-called averaged damage indices will be delivered. Moreover, the results of the signal classification based on the neural network will be presented alongside the numerical model of the wave propagation. The work contains selected information about the project scope and the results achieved at the preliminary stage of the project.
Źródło:
Fatigue of Aircraft Structures; 2012, 4; 10-16
2081-7738
2300-7591
Pojawia się w:
Fatigue of Aircraft Structures
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Gibberellic acid effect on growth and flowering of Ajania pacifica /Nakai/ Bremer et Humphries
Autorzy:
Zalewska, M.
Antkowiak, M.
Powiązania:
https://bibliotekanauki.pl/articles/2129.pdf
Data publikacji:
2013
Wydawca:
Instytut Ogrodnictwa
Tematy:
Ajania pacifica
growth
flowering
inflorescence
gibberellic acid
morphological trait
Tukey's test
Źródło:
Journal of Horticultural Research; 2013, 21, 1
2300-5009
Pojawia się w:
Journal of Horticultural Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Shock Ignition and Growth of HMX-based PBXs under Different Temperature Conditions
Autorzy:
Liu, Rui
Han, Yong
Li, Ming
Jiang, Zhihai
He, Songwei
Powiązania:
https://bibliotekanauki.pl/articles/358417.pdf
Data publikacji:
2019
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
shock ignition and growth
Lagrange test
HMX-based PBXs
high temperatures
Lee-Tarver model
Opis:
The Lagrange test was conducted to investigate the shock ignition and growth of HMX-based polymer bonded explosives (PBXs) under different temperature conditions. In this study, three temperature conditions, 25 °C, 80 °C and 120 °C were used. The pressure history values along the direction of the detonation wave propagation were obtained and presented as the characteristics of the shock ignition and growth. Manganin piezoresistive pressure gauges were used to measure the pressure. The results showed that the distance to detonation was clearly reduced as the temperature was increased. A distance greater than 9 mm at 25 °C was changed to less than 3 mm at 120 °C. In order to understand this phenomenon in more detail, the Lee-Tarver ignition and growth model was employed to simulate the Lagrange test, and the simulated pressures were compared with the measured pressures. The results demonstrated that the intrinsic mechanism of the phenomenon was that the high temperature changed both the equation of state of the unreacted explosive and the chemical reaction rate. It was remarkable that the parameter R2 in the model was reduced from −0.05835 to −0.06338, and the parameter G1 in the model was increased from 1.3 to 2.12.
Źródło:
Central European Journal of Energetic Materials; 2019, 16, 1; 21-32
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Tax revenue and economic growth in developing country: an autoregressive distribution lags approach
Autorzy:
Maganya, Mnaku Honest
Powiązania:
https://bibliotekanauki.pl/articles/1356329.pdf
Data publikacji:
2020-11-20
Wydawca:
Uniwersytet Warszawski. Wydział Nauk Ekonomicznych
Tematy:
taxation
economic growth
foreign direct investment
domestic investment
ADF test
autoregressive distributive lags model
Opis:
Tanzania, like most other developing countries, faces numerous economic challenges in striving to achieve sustainable economic growth and development through taxation. In the literature, the debate on how effective taxes are as a tool for promoting economic growth and economic development remains inconclusive, as various research have reported mixed effects of tax on economic growth. This article investigates the effect of taxation on economic growth in Tanzania using the recently developed technique of autoregressive distributed lag model (ARDL) bounds testing procedure for the period from 1996 to 2019. Various preliminary tests were conducted including stationary tests as well as the pair-wise Granger causality test. According to the results obtained, domestic goods and services (TGS) taxes are positively related to GDP growth and are statistically significant at 1% level. Income taxes, on the other hand, were found to be negatively related to GDP growth and to be statistically significant at 5% level. The pair-wise Granger causality results indicated that there is bidirectional Granger causality between TGS and GDP growth at 1 % significance level. The government should aim at growing, nurturing and sustaining tax base to positively drive economic growth even further.
Źródło:
Central European Economic Journal; 2020, 7, 54; 205 - 217
2543-6821
Pojawia się w:
Central European Economic Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of investment incentives for mining sector on the economic growth of Turkey
Wpływ zachęt inwestycyjnych dla sektora wydobywczego na wzrost gospodarczy Turcji
Autorzy:
Aksoy, Mehmet
Konuk, Adnan
Ak, Hakan
Powiązania:
https://bibliotekanauki.pl/articles/216749.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Instytut Gospodarki Surowcami Mineralnymi i Energią PAN
Tematy:
economic growth
Granger causality test
investment incentives
mine production index
wzrost gospodarczy
test przyczynowości Grangera
zachęty inwestycyjne
wskaźnik produkcji kopalni
Opis:
The mining sector played an important role in the economic growth of the developed countries with rich natural resources in the past, and in recent years, it is important for the economic growth of developing countries. Also, it is generally supported by the incentives due to the fact that mining sector causes other related sectors to grow. Incentives have been the most important economic policy instrument imposed by governments to boost economic growth in developed and developing countries. Incentives or supports given by Turkish state in order to increase the mining investments can be analyzed under two categories; incentives or supports based on the Turkish Mining Law, incentives or supports provided under the Investment Incentive Program. The effect of investment incentives applied to the mining sector in Turkey between the years of 2001 and 2017 on mining production index (MPI) and also the indirect effect of these on gross domestic product (GDP) are investigated by using Granger Causality Test and regression analysis. In this study, the data belonging to the number of investment incentive certificates received by firms operating in Mining Sector and the amount of total fixed investment were used. According to the findings obtained from this study, it has been determined that encouraging the fixed investments of the firms operating in the Mining Sector with incentives has a significant and positive impact on MPI and GDP in a short period of 1 year. However, the incentives applied to the mining sector did not increase the production index of the mine in parallel with the increase in the GDP.
Sektor wydobywczy odgrywał ważną rolę we wzroście gospodarczym krajów rozwiniętych w przeszłości o bogatych zasobach naturalnych w przeszłości, a w ostatnich latach jest ważny dla wzrostu gospodarczego krajów rozwijających się. Ponadto sektor wydobywczy jest ogólnie wspierany przez zachęty ze względu na fakt, że powoduje rozwój innych powiązanych z nim sektorów. Zachęty były najważniejszym instrumentem polityki gospodarczej narzucanym przez rządy w celu pobudzenia wzrostu gospodarczego w krajach rozwiniętych i rozwijających się. Zachęty lub wsparcie udzielane przez Turcję w celu zwiększenia inwestycji górniczych można analizować w dwóch kategoriach; zachęty lub wsparcie w oparciu o tureckie prawo górnicze (TML ‒ Turkish Mining Law) oraz zachęty lub wsparcie zapewniane w ramach Programu Motywacyjnego dla Inwestycji (IIP ‒ Investment Incentive Program). Wpływ zachęt inwestycyjnych stosowanych w sektorze wydobywczym w Turcji w latach 2001–2017 na wskaźnik wydobycia górniczego (MPI ‒ Mining Production Index) i pośrednio produkt krajowy brutto (PKB) jest badany za pomocą testu przyczynowości Grangera i analizy regresji. W tym badaniu wykorzystano dane należące do liczby certyfikatów zachęty inwestycyjnej otrzymanych przez firmy działające w sektorze wydobywczym oraz ustalonej całkowitej kwoty inwestycji (TFI ‒ Total Fixed Investment). W wyniku ustaleń uzyskanych w ramach tego badania uznano, że zachęcanie firm działających w sektorze wydobywczym do ustalonych inwestycji za pomocą zachęt ma znaczący i pozytywny wpływ na MPI i PKB w krótkim okresie 1 roku. Jednak zachęty zastosowane w sektorze wydobywczym nie podniosły wskaźnika wydobycia górniczego MPI równolegle ze wzrostem PKB.
Źródło:
Gospodarka Surowcami Mineralnymi; 2020, 36, 2; 71-86
0860-0953
Pojawia się w:
Gospodarka Surowcami Mineralnymi
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 25

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