The objective of this research is to identify factors that determine the moral hazard in banks by using discrete choice models (probit and logit regression). A specially constructed indicator was used to quantitatively assess moral hazard as the average difference between the better rating of a client in a bank and the most conservative rating of the same client in the banking sector. This is an example where moral hazard manifests itself as the tendency of management in banks to underestimate credit risk. The results showed that state-owned banks and foreign privately-owned banks with evident problems at the level of their headquarters had higher values of this quantitative indicator of moral hazard. Also, banks whose financial result and capital are highly sensitive to a small increase in non-performing loans, as well as banks that at any time in the observed period had a problem with meeting regulatory capital requirements, showed a greater propensity to moral hazard, as measured by this indicator. In the above cases, in the absence of quality corporate governance, management in banks tends to show performance better than it actually is. The obtained results for Serbia in comparison with the previous research give the possibility to quantitatively confirm additional specific factors important for explaining moral hazard (composite variable of the type of ownership and capital restrictions, variables that perform only the transmission of certain forms of management behaviour, size, capital and profit sensitivity, credit risk level, etc.), in addition to the common factors of moral hazard, such as the type of ownership in the bank, capital restrictions, etc.
{"title":"Drivers of moral hazard in banks","authors":"Željko Jović","doi":"10.1556/032.2023.00043","DOIUrl":"https://doi.org/10.1556/032.2023.00043","url":null,"abstract":"The objective of this research is to identify factors that determine the moral hazard in banks by using discrete choice models (probit and logit regression). A specially constructed indicator was used to quantitatively assess moral hazard as the average difference between the better rating of a client in a bank and the most conservative rating of the same client in the banking sector. This is an example where moral hazard manifests itself as the tendency of management in banks to underestimate credit risk. The results showed that state-owned banks and foreign privately-owned banks with evident problems at the level of their headquarters had higher values of this quantitative indicator of moral hazard. Also, banks whose financial result and capital are highly sensitive to a small increase in non-performing loans, as well as banks that at any time in the observed period had a problem with meeting regulatory capital requirements, showed a greater propensity to moral hazard, as measured by this indicator. In the above cases, in the absence of quality corporate governance, management in banks tends to show performance better than it actually is. The obtained results for Serbia in comparison with the previous research give the possibility to quantitatively confirm additional specific factors important for explaining moral hazard (composite variable of the type of ownership and capital restrictions, variables that perform only the transmission of certain forms of management behaviour, size, capital and profit sensitivity, credit risk level, etc.), in addition to the common factors of moral hazard, such as the type of ownership in the bank, capital restrictions, etc.","PeriodicalId":45104,"journal":{"name":"Acta Oeconomica","volume":"7 11","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139007674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tax evasion is reducing the revenues of public budgets of many European Union (EU) Member States (MS). To improve the effectiveness of tax collection, during the last decade authorities in several MS have taken measures to reduce the value added tax (VAT) gap (i.e., revenue received as a percentage of theoretical liability). In the Central and Eastern European region, VAT gap reduction measures have been implemented effectively in Hungary and Poland, whereas in Romania the effectiveness of these measures is very low: Romania has been the worst-performing EU MS in collecting VAT for more than 10 years. Our study analyses the factors influencing this VAT gap. Our analysis relied mainly on a fixed effects panel regression model, using for a balanced panel an individual and time fixed-effects with cluster-robust standard errors model, and for the unbalanced panel the fixed-effects regression with individual-specific slopes. Our results show that the size of the VAT gap is primarily influenced by five variables: the transparency index, the tax collection ratio, the law enforcement index, the VAT revenues ratio and the digitisation index.
{"title":"An investigation of the influencing factors of value added tax collection effectiveness in EU Member States","authors":"Lóránd-István Králik, Erzsebe Szasz","doi":"10.1556/032.2023.00045","DOIUrl":"https://doi.org/10.1556/032.2023.00045","url":null,"abstract":"Tax evasion is reducing the revenues of public budgets of many European Union (EU) Member States (MS). To improve the effectiveness of tax collection, during the last decade authorities in several MS have taken measures to reduce the value added tax (VAT) gap (i.e., revenue received as a percentage of theoretical liability). In the Central and Eastern European region, VAT gap reduction measures have been implemented effectively in Hungary and Poland, whereas in Romania the effectiveness of these measures is very low: Romania has been the worst-performing EU MS in collecting VAT for more than 10 years. Our study analyses the factors influencing this VAT gap. Our analysis relied mainly on a fixed effects panel regression model, using for a balanced panel an individual and time fixed-effects with cluster-robust standard errors model, and for the unbalanced panel the fixed-effects regression with individual-specific slopes. Our results show that the size of the VAT gap is primarily influenced by five variables: the transparency index, the tax collection ratio, the law enforcement index, the VAT revenues ratio and the digitisation index.","PeriodicalId":45104,"journal":{"name":"Acta Oeconomica","volume":"19 11","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139009446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Economic freedom is crucial in determining policies for economic performance of nations and monitoring changes in the international economic order. Evaluating economic freedom requires the use of multiple indicators related to each other. Traditional statistical analyses used as an evaluation tool are often constrained by the probability distribution of indicators or sample size. To overcome these shortcomings, this paper uses grey factor analysis (GFA) to evaluate the economic freedom of countries. GFA can be used with multiple interrelated indicators without requirements about the probability distributions or sample size. The absolute degree of grey incidence matrix is used instead of the correlation matrix in factor analysis and GFA integrates the advantages of grey system theory into factor analysis. The analysis covers data for 2010 and 2020 about 20 economic freedom indicators in 36 selected countries. Two factors explain a significant part of the variance for both years. The scores for countries were obtained using the explained variance ratio as a weight. Our results show that GFA provides more accurate results than traditional statistical analyses.
{"title":"Evaluating the economic freedom of countries: An application of grey factor analysis","authors":"Deniz Koçak, Abdulkerim Çalişkan","doi":"10.1556/032.2023.00042","DOIUrl":"https://doi.org/10.1556/032.2023.00042","url":null,"abstract":"Economic freedom is crucial in determining policies for economic performance of nations and monitoring changes in the international economic order. Evaluating economic freedom requires the use of multiple indicators related to each other. Traditional statistical analyses used as an evaluation tool are often constrained by the probability distribution of indicators or sample size. To overcome these shortcomings, this paper uses grey factor analysis (GFA) to evaluate the economic freedom of countries. GFA can be used with multiple interrelated indicators without requirements about the probability distributions or sample size. The absolute degree of grey incidence matrix is used instead of the correlation matrix in factor analysis and GFA integrates the advantages of grey system theory into factor analysis. The analysis covers data for 2010 and 2020 about 20 economic freedom indicators in 36 selected countries. Two factors explain a significant part of the variance for both years. The scores for countries were obtained using the explained variance ratio as a weight. Our results show that GFA provides more accurate results than traditional statistical analyses.","PeriodicalId":45104,"journal":{"name":"Acta Oeconomica","volume":"21 18","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138977128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The article analyses the current issues contributing to the volatility of Bitcoin as the reliability of this new technology diminishes, leading to increased unpredictability of its value. Legal efforts and literature regarding Bitcoin have primarily focused on protecting society from the illegal use of this digital technology, with little emphasis on integrating it as an asset. However, this article proposes that countries adopt Bitcoin-related legislation, incorporating recognition and regulation clauses to transform Bitcoin into a stable, less volatile and functional digital asset. In the context of legal history, primary legal domains, such as contracts, family, trade and others, have been integrated through recognition and regulation processes. Therefore, we argue that adopting Bitcoin-specific legislation that recognizes this new technology while comprehensively regulating the associated risks would enhance the coin's stability and reduce volatility, ultimately increasing trust among digital investors and users.
{"title":"Bitcoin: The nexus between regulation and recognition","authors":"Alper Uyumaz, Enku Tensay Woldemaryam","doi":"10.1556/032.2023.00046","DOIUrl":"https://doi.org/10.1556/032.2023.00046","url":null,"abstract":"The article analyses the current issues contributing to the volatility of Bitcoin as the reliability of this new technology diminishes, leading to increased unpredictability of its value. Legal efforts and literature regarding Bitcoin have primarily focused on protecting society from the illegal use of this digital technology, with little emphasis on integrating it as an asset. However, this article proposes that countries adopt Bitcoin-related legislation, incorporating recognition and regulation clauses to transform Bitcoin into a stable, less volatile and functional digital asset. In the context of legal history, primary legal domains, such as contracts, family, trade and others, have been integrated through recognition and regulation processes. Therefore, we argue that adopting Bitcoin-specific legislation that recognizes this new technology while comprehensively regulating the associated risks would enhance the coin's stability and reduce volatility, ultimately increasing trust among digital investors and users.","PeriodicalId":45104,"journal":{"name":"Acta Oeconomica","volume":"8 9","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139007670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper aims to evaluate the influence of investment and R&D expenditures on the performance of large companies that are headquartered in the Europe using regression analysis of the generalized method of moments. The independent control variables are GDP per capita and the interest rate represented by the yield of 10-year state bonds. The sample period is 2010–2018. Our result shows that the growth of R&D expenditures and investments negatively affected the profitability ratios of the firms in the year of implementation. While concentrating on the macroeconomic control variables, the results support an assumption about the positive effects of GDP on the majority of the net income, ROA and ROE estimates. On the other hand, negative effects of interest rates were found.
本文旨在利用广义矩方法的回归分析,评估投资和研发支出对总部设在欧洲的大型公司业绩的影响。独立控制变量为人均 GDP 和以 10 年期国家债券收益率为代表的利率。样本期为 2010-2018 年。结果表明,研发支出和投资的增长对实施当年企业的盈利率产生了负面影响。在集中研究宏观经济控制变量时,结果支持了国内生产总值对大部分净收入、投资回报率和投资收益率估计值产生正向影响的假设。另一方面,利率产生了负面影响。
{"title":"Impact of investment and R&D expenditures on company performance in the industry 4.0 era","authors":"J. Šimáková, T. Pražák","doi":"10.1556/032.2023.00044","DOIUrl":"https://doi.org/10.1556/032.2023.00044","url":null,"abstract":"This paper aims to evaluate the influence of investment and R&D expenditures on the performance of large companies that are headquartered in the Europe using regression analysis of the generalized method of moments. The independent control variables are GDP per capita and the interest rate represented by the yield of 10-year state bonds. The sample period is 2010–2018. Our result shows that the growth of R&D expenditures and investments negatively affected the profitability ratios of the firms in the year of implementation. While concentrating on the macroeconomic control variables, the results support an assumption about the positive effects of GDP on the majority of the net income, ROA and ROE estimates. On the other hand, negative effects of interest rates were found.","PeriodicalId":45104,"journal":{"name":"Acta Oeconomica","volume":"26 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139009997","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract A key observation of the endogenous money theory is that banks create deposits (money) by lending. This means that banks apparently face soft budget constraint in responding to demand for credit. However, there are several limiting factors, which can make the banks' money creation somewhat constrained, and can thus harden their budget constraint. Such factors include the need to preserve banks' profitability and the bank regulations (the capital and liquidity requirements). Previous literature on soft budget constraint (SBC) in banking mentioned government bailouts, central banks lender-of-last-resort policies, or the poorly informed depositors who over-finance banks, as reasons for the SBC for banks. Taking the endogenous money theory as a starting point, we use a different approach. We analyze whether the tools that aimed to keep the bank's budget constrain hard are appropriate for this purpose. Our analysis, as well as lessons from several recent bank crisis episodes suggest, that under current banking regulation SBC is an inherent feature of banking.
{"title":"Endogenous money, soft budget constraint and the banking regulation","authors":"István Ábel, Katalin Mérő","doi":"10.1556/032.2023.00036","DOIUrl":"https://doi.org/10.1556/032.2023.00036","url":null,"abstract":"Abstract A key observation of the endogenous money theory is that banks create deposits (money) by lending. This means that banks apparently face soft budget constraint in responding to demand for credit. However, there are several limiting factors, which can make the banks' money creation somewhat constrained, and can thus harden their budget constraint. Such factors include the need to preserve banks' profitability and the bank regulations (the capital and liquidity requirements). Previous literature on soft budget constraint (SBC) in banking mentioned government bailouts, central banks lender-of-last-resort policies, or the poorly informed depositors who over-finance banks, as reasons for the SBC for banks. Taking the endogenous money theory as a starting point, we use a different approach. We analyze whether the tools that aimed to keep the bank's budget constrain hard are appropriate for this purpose. Our analysis, as well as lessons from several recent bank crisis episodes suggest, that under current banking regulation SBC is an inherent feature of banking.","PeriodicalId":45104,"journal":{"name":"Acta Oeconomica","volume":"34 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135868064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract The objective of this study is to identify how globalisation influences China and how China affects globalisation in the context of János Kornai's Frankenstein metaphor. Kornai (2019) felt moral responsibility for unwillingly contributing with his advice in the 1980s to the birth of a modern version of Frankenstein, the Monster which his creators could not control. A crucial guiding principle of this paper is how the US and the advanced democratic economies can respond to Kornai's dilemma and reconcile the diverging requirements of economic interests with national security priorities. There is a research gap in the systematic mapping of the external economic environment on China's development. The primary conclusion of this paper is that China is less dependent on the rest of the world than the world on China. As the de-risking concept suggests, trade restrictions and domestic industrial policy measures focused on a narrow range of strategic sectors should be combined with unlimited trade and cooperation in the remaining non-strategic sectors. This study's conceptual and methodological framework can be used to analyse the relationship between advanced democratic economies and autocratic regimes in Kornai's Frankenstein dilemma.
{"title":"The global conditions of China's economic development: How does globalisation affect China in the context of Kornai's Frankenstein metaphor?","authors":"Miklós Losoncz","doi":"10.1556/032.2023.00040","DOIUrl":"https://doi.org/10.1556/032.2023.00040","url":null,"abstract":"Abstract The objective of this study is to identify how globalisation influences China and how China affects globalisation in the context of János Kornai's Frankenstein metaphor. Kornai (2019) felt moral responsibility for unwillingly contributing with his advice in the 1980s to the birth of a modern version of Frankenstein, the Monster which his creators could not control. A crucial guiding principle of this paper is how the US and the advanced democratic economies can respond to Kornai's dilemma and reconcile the diverging requirements of economic interests with national security priorities. There is a research gap in the systematic mapping of the external economic environment on China's development. The primary conclusion of this paper is that China is less dependent on the rest of the world than the world on China. As the de-risking concept suggests, trade restrictions and domestic industrial policy measures focused on a narrow range of strategic sectors should be combined with unlimited trade and cooperation in the remaining non-strategic sectors. This study's conceptual and methodological framework can be used to analyse the relationship between advanced democratic economies and autocratic regimes in Kornai's Frankenstein dilemma.","PeriodicalId":45104,"journal":{"name":"Acta Oeconomica","volume":"11 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135818224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract Significant parts of the work of the great economist and economic visionary János Kornai function as a magnifying glass in economic theory, philosophy and history. Kornai examined economic systems and system-mixes with substantial details, for then being able to focus his audiences' attention on the most relevant and critical aspects of them. One of Kornai's masterpieces, The Socialist System – a book which recently passed its 30-year publishing anniversary – is such a political economy lens on communism. I am attempting a concise conversion of this magnifying glass, to apply a Galileian metaphor, into an economic telescope. In other words, I am adding another economic lens – that of moral economics – to the Kornaian viewpoints. In a short analysis going through various dimensions of The Socialist System , I am coupling Kornai's thoughts with moral economic ideas, both from the classical and the contemporary moral economy streams. The goal with this exercise of respectfully refreshing a toolkit and style of economic analysis is to then gaze into, and partially describe a potential multitude, or spectra of economic systems, which may manifest in econodiversity.
{"title":"“Celestial” snapshots: Moral economic revisitations of János Kornai's the socialist system","authors":"Zsófia Hajnal","doi":"10.1556/032.2023.00039","DOIUrl":"https://doi.org/10.1556/032.2023.00039","url":null,"abstract":"Abstract Significant parts of the work of the great economist and economic visionary János Kornai function as a magnifying glass in economic theory, philosophy and history. Kornai examined economic systems and system-mixes with substantial details, for then being able to focus his audiences' attention on the most relevant and critical aspects of them. One of Kornai's masterpieces, The Socialist System – a book which recently passed its 30-year publishing anniversary – is such a political economy lens on communism. I am attempting a concise conversion of this magnifying glass, to apply a Galileian metaphor, into an economic telescope. In other words, I am adding another economic lens – that of moral economics – to the Kornaian viewpoints. In a short analysis going through various dimensions of The Socialist System , I am coupling Kornai's thoughts with moral economic ideas, both from the classical and the contemporary moral economy streams. The goal with this exercise of respectfully refreshing a toolkit and style of economic analysis is to then gaze into, and partially describe a potential multitude, or spectra of economic systems, which may manifest in econodiversity.","PeriodicalId":45104,"journal":{"name":"Acta Oeconomica","volume":"5 20","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135818513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract Kornai challenged not only the dominant economic views of the socialist system, but also those of market economies. The former brought him fame, and the latter remained, so to speak, his scientific testament. He studied the systemic properties of different economic systems through the analytical grid of the sign of aggregate excess supply, which defined three categories: shortage economies, equilibrium economies and surplus economies. In this paper, we show that business plans postulated with the aim of realizing strictly positive net retained profits in nominal terms exclude equilibrium economies; these business plans imply a surplus economy. This definition of the business plan makes it possible to combine seemingly disparate results from different parts of the economic literature. An economy in which business plans are the rule and no economic agent can run a permanent negative budget is a surplus economy, which manifests itself in the phenomena of both growth imperative and realization problem. In short, all these phenomena are the manifestations of the same essence: the working of the business plans.
{"title":"The connection between growth imperative of monetary production economies, the realization problem and Kornai's surplus economy","authors":"Zsolt Gilányi","doi":"10.1556/032.2023.00037","DOIUrl":"https://doi.org/10.1556/032.2023.00037","url":null,"abstract":"Abstract Kornai challenged not only the dominant economic views of the socialist system, but also those of market economies. The former brought him fame, and the latter remained, so to speak, his scientific testament. He studied the systemic properties of different economic systems through the analytical grid of the sign of aggregate excess supply, which defined three categories: shortage economies, equilibrium economies and surplus economies. In this paper, we show that business plans postulated with the aim of realizing strictly positive net retained profits in nominal terms exclude equilibrium economies; these business plans imply a surplus economy. This definition of the business plan makes it possible to combine seemingly disparate results from different parts of the economic literature. An economy in which business plans are the rule and no economic agent can run a permanent negative budget is a surplus economy, which manifests itself in the phenomena of both growth imperative and realization problem. In short, all these phenomena are the manifestations of the same essence: the working of the business plans.","PeriodicalId":45104,"journal":{"name":"Acta Oeconomica","volume":"8 20","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135818931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Can János Kornai's oeuvre be continued?","authors":"Péter Mihályi","doi":"10.1556/032.2023.00028","DOIUrl":"https://doi.org/10.1556/032.2023.00028","url":null,"abstract":"","PeriodicalId":45104,"journal":{"name":"Acta Oeconomica","volume":"30 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135869048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}