Oana-Ramona Lobonţ's research while affiliated with West University of Timisoara and other places

Publications (54)

Article
This paper investigates whether the uncertainty-hedging aura of gold has faded away. The rolling window Granger causality tests are employed to detect the mutual relationship between the world uncertainty index (WUI) and gold price (GP). We find the positive influence that ripples from WUI towards GP, which indicates that gold keeps the uncertainty...
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The research examines the causal relationship between supply chain efficiency and sustainable financial performance based on the evidence from the literature dealing with a transition from financial decision-making based on the financial outcome, including financial rationale in supply chain design, operations, and management. The case study has in...
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The COVID-19 pandemic and the digitalization of medical services present significant challenges for the medical sector of the European Union, with profound implications for health systems and the provision of high-performance public health services. The sustainability and resilience of health systems are based on the introduction of information and...
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This paper explores the relationship between public policy and entrepreneurial activity in EU countries by using the panel threshold model. The paper was fundamental based on and confirmed the psychological threshold theory; namely, the results showed a single threshold effect between government effectiveness and entrepreneurial activity. Governmen...
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This article investigates whether gold will always shine amid world uncertainty or not. The quantile on quantile (QQ) approach is employed to detect the mutual relationship between the world uncertainty index (WUI) and gold price (GP). We find the impacts of WUI on GP, in different quantiles, varies and runs in cycles. The positive influence that r...
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When taking into account the general terms on which the global green and low-carbon transition takes place, it can be affirmed that the use of clean and renewable energy, including wind, hydro, solar, etc., is an alternative to the traditional energy sources. The renewable energy industry possesses considerable potential, and has recently become th...
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To investigate the contribution of green credit (GC) to improving air quality in China, the bootstrap sub-sample rolling-window Granger causality test is employed. This test considers the structural changes of parameters that affect the accuracy of the conclusion and analyzes the dynamic relationship between GC and air quality. The sub-sample empir...
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This paper examines whether the efficient market hypothesis (EMH) holds in the Chinese carbon trading pilots by employing the Sequential Panel Selection Method (SPSM) which is combined with the Panel KSS unit root tests with Fourier function. This approach serves as a highly valid tool in controlling for cross-sectional dependence and heterogeneity...
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This research aims to investigate the field of entrepreneurship in the context of public sector governance in eight of the largest economies in the world (the G7 countries and Russia). To analyse the composition and evolution of entrepreneurship, data from the Global Entrepreneurship Monitor was collected, while the economic stability was based on...
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This paper aims to determine the existence of convergence in health expenditures among Association for South East Asian Nations (ASEAN) countries. Based on the SPSM procedure and panel KSS unit root test results, the public health expenditures (PUHE) in Indonesia, Lao PDR, Cambodia, the Philippines, and Myanmar are converging, while that of Brunei...
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This paper investigates the cointegration relationship among crude oil dependence (COD), CO2 emissions (CO2) and military expenditure (ME) in net oil importing countries using a bootstrap autoregressive distributed lag model with a Fourier function (FARDL). The empirical results indicate that there is cointegration in China and India due to their r...
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This article employs asymmetric panel causality test to address the causal nexus between energy consumption (EC) and healthcare insurance premiums (IP) for China's different provinces. The empirical results indicate that there exist asymmetric causality runs from positive EC shocks to positive healthcare IPs in Beijing, Hebei, Tianjin, Shanxi, Inne...
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The fourth industrial revolution has been significantly affected by different economic sectors, including the financial sector. The financial sector has dramatically changed the way it works and hence, providing new opportunities to investors. The advancement of new technologies in information and communication has a strong association with financi...
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This study investigates whether multiple bubbles exist in the copper price on the basis of the Generalized Supremum Augmented Dickey-Fuller (GSADF) approach (Phillips et al., 2013). This technique delivers date-stamping strategies for the emergence as well as collapse of explosive bubble episodes and is best suited for practical application to time...
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This paper chooses monthly data covering the period from 1990:M1 to 2018:M12 to investigate the contributions of partisan conflicts (PCI), the dollar index (USDX) and U.S. oil production (PRO) on the oil price (OP) by applying the time-varying parameter-stochastic volatility-vector autoregression (TVP-SV-VAR) model. The empirical results are consis...
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We employ the generalized supremum augmented Dickey–Fuller test to examine whether there are multiple bubbles in Chinese agricultural commodities. The proposed approach is suitable for time series data and identifies the origination and termination of multiple bubbles. The results indicate the existence of bubbles for some agricultural commodity pr...
Article
This paper considers bubbles specific to Chinese renewable energy industries, including wind, solar and hydro through the Generalized Supremum Augmented Dickey-Fuller test. It applies the recursive procedure and cross-time occurrence to identify starting and ending points in each bubble. Combining with the bubble model, the empirical results reveal...
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This paper offers a perspective for the link between air quality and stock returns in China through quantile Granger causality test. Compared to previous studies, the study makes the following innovations. Given the Chinese government plays an important role in economic development, its industrial policies are regarded as a new indispensable supple...
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This paper investigates new insights into the effect taxation has on the welfare state, using Granger causality analysis, and focusing on both economic growth and human development as welfare components. Moreover, Granger causality allows us to determine whether or not there is a bidirectional causal relationship between taxes, growth, and human de...
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This paper investigates whether there exists an optimal level of research and development (R&D) intensity, at which defense enterprises are able to maximize their market performance. The Panel Threshold Regression Model was applied to probe the link between R&D intensity and sales growth for defense listed enterprises, in China. The empirical resul...
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This study explores whether the female labor force participation rate (FLFPR) can promote economic development in Asian countries. We apply the method of bootstrap panel Granger causality in order to consider the cross-sectional dependency and heterogeneity to detect specific patterns of the interactive relationships between the two variables. The...
Article
In this paper, we employ the Generalized Supremum Augmented Dickey-Fuller test in order to identify the existence of multiple bubbles in natural rubber. This approach is practical for the using of time series and identifies the beginning and end points of multiple bubbles. The results reveal that there are five bubbles, where exist the divergences...
Article
This study explores the causalities between oil and agricultural commodity prices to examine whether the vertical market integration model holds for global market. Considering structural changes, the long-run nexus using full-sample data is found to be unstable, suggesting the causality test is not reliable. Instead a time-varying rolling-window te...
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This paper aims to investigate whether the covered interest rate parity (C.I.P.) holds or not through examining the dynamic link between nominal interest rate differential (N.I.R.D.) and nominal exchange rate (N.E.R.) in China. With economic transitions and structural changes existing, we find that the C.I.P. condition using full-sample data does n...
Article
In this paper, we investigate whether the knowledge capital model (Carr Markusen and Maskus, 2001) is satisfied in Slovakia by applying the bootstrap rolling window subsample test to examine the causal relationship between foreign direct investment (FDI) and exports (EX). This method provides more accurate evidence of a connection between these two...
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This paper explores when will occur and collapse in Bitcoin bubbles by applying generalized sup augmented Dickey–Fuller test method proposed by Phillips et al. (Testing for multiple bubbles: historical episodes of exuberance and collapse in the S&P 500. Singapore Management University, Working Paper, No. 04-2013, 2013). The results show that there...
Article
This paper examines whether there are multiple explosive bubble episodes in international food market by employing the Generalised Supremum Augmented Dickey-Fuller (GSADF) test. This method is particularly suitable for practical application of time series and provides an innovative consistent date-stamping strategy for the origination and terminati...
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This study examines the causal nexus between defense expenditure and economic growth in China using the bootstrap Granger full-sample causality test and rolling-window estimation. The full-sample result indicates a positive bidirectional causality between economic growth and defense expenditure, suggesting that more defense spending increases econo...
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This paper studies the relationship between two series of the money supply (M2), short-term international capital flows and housing prices by employing a continuous wavelet method. This method can enable us to examine the relation in both time and frequency domains in detail. We use data from China for empirical analysis. Although the relations are...
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In this paper, we investigate how crude oil price and volume traded affected the profitability of oil and gas companies in the United Kingdom (UK) since the financial crisis started in 2008. The study benefit from insights of the financial statements, to develop a model that focuses on how changes in oil price impact corporate performance. In order...
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This article uses the bootstrap panel Granger causality to analyse the link between the Producer Price Index (PPI) and Consumer Price Index (CPI) in ten Central and Eastern European (CEE) countries. The result of cross-sectional dependency and slope homogeneity shows that PPI and CPI vary in different countries. However, the result indicates that P...
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The article outlines the need to identify appropriate explanations for various acts of deviant behaviour, mental illness and violent reactions in Romanian contemporary society which is facing a crisis of values and character. The objective of the article is to provide empirical evidence and raise awareness regarding the relationship between crime a...
Article
In this paper, we apply a recursive unit root test to investigate whether there exist multiple bubbles in crude oil price. The method is best suited for a practical implementation of a time series and delivers a consistent date-stamping strategy for the origination and termination of multiple bubbles. The empirical result indicates that there exist...
Article
This study examines the causal relationship between Chinese housing market (HM) and stock market (SM), using the bootstrap Granger full-sample causality test and subsample rolling-window estimation test. The results show that stock price (SP) has both positive and negative impacts on housing price (HP) in several sub-periods, and HP has the same ef...
Article
In this paper, we developed the recursive unit root tests proposed by Phillips et al. (2013) to identify the beginning and end of speculative bubbles in Chinese consumer price index (CPI). This method is best suited for practical implementation and delivers a consistent date-stamping strategy to identify the multiple bubbles. The results show four...
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The purpose of this investigation is to research the causal link between economic policy uncertainty (EPU) and the housing returns (HR) in Germany. In the estimated vector autoregressive models, we test its stability and find the short-run relationship between HR and EPU is unstable. As a result, a time-varying approach (bootstrap rolling window ca...
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This study examines the causal link between the producer price index (PPI) and the consumer price index (CPI) in Slovakia. We use the bootstrap Granger full sample causality, and the sub-sample rolling window approach and results indicate the unidirectional causality running from the PPI to the CPI. By taking the structural changes into considerati...
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The paper will explore the evolution of Romanian migration phenomenon and the influence of migration policy of European countries, in order to understand the mechanism of choosing the destination country for Romanian emigrants. What type of evolution knows the migration phenomenon from Romania? Which are the most important factors that influence th...
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In this paper, in order to understand how cultural values influence the quality of governance, alternative ways of measuring the cultural values and different indices to measure the quality of governance: Hofstede’s model for cultural dimensions level and E-government Development Index are considered. In a certain sense, E-government Development is...
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In contemporary society, especially in democratic countries, the existence of elections, the results of which may change the political configuration in their regularity, equally supported by power existing policy, public administration and citizens, are the coordinates of continuity for permanent sustainable development. The objective of this paper...
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This paper uses data for the 27 Member States of the European Union (EU) from 2000 to 2010 to support the thesis that a positive and significant correlation exists between a nation’s quality of governance and its economic output. To achieve this goal, the elements of governance that have been reported by the Worldwide Governance Indicators project...
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This study investigates whether there exist any causal relationship between political corruption, economic freedom and economic growth in European Union. Empirical relationship of questioned variables in European Union is estimated by employing linear panel data methodology over the period 1995-2011. Findings indicate that there exists Lit-directio...
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The objective of this paper is to provide some empirical evidencies of the significance, incidence and dynamics of fiscal decisions in the design of Romanian economic performances over the period 1995-2010. Economic performance must be addressed in a matrix theory, as an objective necessity, with a strong moral charge, in a mosaic reality depending...
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The degradation of the social values leads to the vulnerability of certain categories of population and to a state of anomie in terms of the loss of state institutions authority or leads to the institutionalization of informal criminal behavior. This paper sets out to study the socio-cultural determinants of criminal behavior in Romania. According...
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Economic, cultural, social, psychological, political, administrative and religious effects of corruption are manifested by functional, political and moral degradation of local public authorities, which is a result of the expansion of political corruption, by reducing the transparent and accountable political power or by social tensions and increasi...
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Sustainability can also be assessed in other terms but the size of the accumulated stock of public debt. Even with an indebtedness degree of 20%, budget and fiscal policies may be unsustainable if, for example, that State is unable to pay its obligations arising from the contracted public loans, so if it is not creditworthy. Public debt’s sustainab...
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Depending on the specific stage of economic cycle, different types of fiscal policies,expansionist (incentive) or restrictive (prohibition), are use in specific state of the economy, for acertain period of time. Thus, in times of recession, the state use of tax incentive measures and intimes of economic boom are applied, in particular, prohibitive...
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The current crisis calls for two main sets of policy measures: to repair the financial system and increase demand and to restore confidence, on fiscal policy. The optimal fiscal package should be timely, large, lasting, diversified, contingent, collective, and sustainable Looking at the content of the fiscal package, in the current circumstances, s...
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This paper is trying to establish, in Romania, at macroeconomic level, quantitative and qualitative, relations between gross domestic product and governmental and local revenues.
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Full-text available
Socio-political effects of corruption is manifested by functional, political and moral degradation of local public authorities, which is a result of the expansion of political corruption, by reducing the transparent and accountable political power or by social tensions and increasing impoverishment of the population. În the executive activity, corr...

Citations

... Data extraction can provide valuable information for creating national or global strategies and at all stages of decision-making. The first paper, "Challenges and Drawbacks of the EU Medical System Generated by the COVID-19 Pandemic in the Field of Health Systems' Digitalization", by T , ăran et al. [38], examines the impact of digitalization on several dimensions of health, with specific implications for their impact on the Coronavirus disease 2019 (COVID-19) pan-demic in mind. The results of the study emphasize the need for effective national responses, as well as recommendations, priorities, and objectives to strengthen health systems at the European level. ...
... In the case of OECD economies, Gunakar (23) found that financial development enhances health outcomes by increasing the extent of life expectancy and reducing the rate of infant mortality. Financial development in this study is measured by liquid liabilities as a percent of GDP, credit to the private sector as a percent of GDP, and market capitalization as a percent of GDP (24). In the case of African economies, Chireshe (25) found that financial development increases life expectancy and reduces the child mortality rate. ...
... They found that renewable energy consumption decreases the level of carbon emitted in all countries and rising pollution in the lower-middle-income countries. After this, Yuan et al. (2022) assess the effect of adopting green energy sources to reduce GHG emissions using the Granger causality test. Their finding consists of a waning relationship between REC and CO 2 emissions. ...
... Innovation refers to introducing something new (product or process/service) or making significant improvements to existing products or services (Awan, 2020). Environmental innovation, also known as green innovation, is a novel concept and has gained the spotlight in recent literature (Su, Li, et al., 2022). According to Xie et al. (2019), green or eco-innovation focuses on developing goods and services which enable firms to achieve corporate sustainability with a particular focus on environmental protection (Ielasi et al., 2018). ...
... Adopting some advanced techniques, scholars also discussed the efficiency of China's carbon trading market. For example, based on the efficient market hypothesis, Wang et al. (2022) asserted that carbon prices follow mean reversion process by adopting the Sequential Panel Selection Method, designating that the inefficiency in Chinese carbon trading market (excluding Shanghai market). Employing GARCH (1, 1)-M model with state space time-varying parameter, modified Amihud illiquidity ratio, fixed effect variable intercept panel regression model, and panel impulse response analysis, Wu & Qin (2021) found that Shenzhen pilot has the highest market efficiency, followed by Beijing, Shanghai, Guangdong, while Hubei has the lowest efficiency. ...
... The production and export of ginger were remarkably increased in the past three decades with the rapid increase in ginger price and demands globally (Fig. 1). However, the price of ginger faces the emerging challenge of drastic price volatility due to unstable supply-demand relationships caused by natural disasters, labor shortages, pernicious speculation, and other unpredictable factors (Miao et al., 2011;Zhang et al., 2019). For example, in the main ginger-producing area in China, Shandong province, drought in 2019, flooding, and coronavirus outbreak in 2020 lead to reduced ginger production and soaring prices (Jang, 2020;Tian, 2020). ...
... Therefore, taking into account the importance of the entrepreneurial intention, the research aims to contribute to the work of support and promotion of entrepreneurship that is developed by the Brazilian Service for Support to Micro and Small Enterprises (SEBRAE) and by government policies, producing information that will serve as a subsidy for the improvement of these actions. Vatavu, Dogaru, Moldovan and Lobont (2021) also highlight the recognition of the importance of entrepreneurship policies, and governments have started to implement general and specific policies aimed at promoting entrepreneurial activities. ...
... Hence, in 2015:02-2015:04, the SMI had a positive impact on PR. The increase in social medical insurance premiums is accompanied by an increase in poverty (57). ...
... The results presented by the data analysis have pointed towards the association of oil demand and other four dimensions, namely remittances, exchange rates, government consumption, and technological innovation. These results have demonstrated similar outcomes as indicated in other studies Wang et al., 2021) where Notes: "a", "b", and "c" superscripts indicate 1%, 5%, and 10% significance levels, respectively. ...
... Khalid and Shafiullah 14 used a panel data analysis in order to incorporate cross-sectional dependency of financial development and governance. Gu et al. 15 studied the impacts of the fourth industrial revolution on the transformation of the relationship between financial development and its determinants in emerging economies. A full list of indicators and effective factors of global financial development can be easily find at the database of the world bank. ...