Measurement of the performances of inflation targeting (IT) frameworks has been of interest to researchers ever since IT began to be implemented as a monetary policy strategy. The purpose of this paper is to evaluate the impact of domestic and international determinants on success in achieving inflation targets of the selected European economies. Our methodological framework is based on the application of a non-stationary discrete choice model. For this research, four European economies are considered: Czech Republic, Hungary, Poland and Serbia. Their results regarding IT policy can provide a useful benchmark for similar economies that are either planning to adopt the same monetary policy framework or have begun to apply it recently. Our findings indicate that IT success is primarily under the control of monetary policymakers by key policy rate mechanism, but that the impact of additional domestic and international factors that are not easily managed by the central bank like budget balance, exchange rate, growth rate, current account balance, labor cost growth, loans, Harmonized Index of Consumer Prices, inflation, and GDP gap of the Eurozone, can be also significant. Consequently, monetary policymakers need to take into account a wide range of inflation factors, including foreign spillover effects, so that tools for their neutralization can be helpful in achieving the targeted goals.
{"title":"Performances of selected European economies in achieving their inflation targets: The non-stationary discrete choice model approach","authors":"Milutin Ješić, Zorica Mladenović, Miomir Jakšić","doi":"10.1556/032.2023.00012","DOIUrl":"https://doi.org/10.1556/032.2023.00012","url":null,"abstract":"Measurement of the performances of inflation targeting (IT) frameworks has been of interest to researchers ever since IT began to be implemented as a monetary policy strategy. The purpose of this paper is to evaluate the impact of domestic and international determinants on success in achieving inflation targets of the selected European economies. Our methodological framework is based on the application of a non-stationary discrete choice model. For this research, four European economies are considered: Czech Republic, Hungary, Poland and Serbia. Their results regarding IT policy can provide a useful benchmark for similar economies that are either planning to adopt the same monetary policy framework or have begun to apply it recently. Our findings indicate that IT success is primarily under the control of monetary policymakers by key policy rate mechanism, but that the impact of additional domestic and international factors that are not easily managed by the central bank like budget balance, exchange rate, growth rate, current account balance, labor cost growth, loans, Harmonized Index of Consumer Prices, inflation, and GDP gap of the Eurozone, can be also significant. Consequently, monetary policymakers need to take into account a wide range of inflation factors, including foreign spillover effects, so that tools for their neutralization can be helpful in achieving the targeted goals.","PeriodicalId":45104,"journal":{"name":"Acta Oeconomica","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44937303","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 relationship between economic growth and transport sector is an important and popular topic for researchers, but it also has several untapped areas. To ensure continuous economic growth, it is necessary to answer how and to what extent economic sectors contribute to sustainability; what factors or sets of factors can determine freight performance in a country or region; and how it affects the global economy. This study aims to test the presence of spatial dependence. In this research, the authors looked for the spatial relationships between economic activity (GDP) and freight transport performance using spatial econometric models. The results showed that the spatial impact of freight transport performance and GDP significantly influence each other. The intensity calculation shows that the Baltic States have a high intensity in road freight transport, followed by the Central European region. Eastern Europe, including Russia and the Baltics, are prominent players in rail freight. Furthermore, the spatial econometric models have highlighted that a country with high GDP has some sort of "suction" effect on neighbouring countries with lower GDP along with the freight performance. This is especially true for rail freight. In the long run, the outlined results may even support strategic decision-makers in managing the economic impacts of both road and rail freight transport at the regional level.
{"title":"Spatiality in freight transport efficiency","authors":"Adrienn Boldizsár, F. Mészáros, T. Sipos","doi":"10.1556/032.2023.00019","DOIUrl":"https://doi.org/10.1556/032.2023.00019","url":null,"abstract":"The relationship between economic growth and transport sector is an important and popular topic for researchers, but it also has several untapped areas. To ensure continuous economic growth, it is necessary to answer how and to what extent economic sectors contribute to sustainability; what factors or sets of factors can determine freight performance in a country or region; and how it affects the global economy. This study aims to test the presence of spatial dependence. In this research, the authors looked for the spatial relationships between economic activity (GDP) and freight transport performance using spatial econometric models. The results showed that the spatial impact of freight transport performance and GDP significantly influence each other. The intensity calculation shows that the Baltic States have a high intensity in road freight transport, followed by the Central European region. Eastern Europe, including Russia and the Baltics, are prominent players in rail freight. Furthermore, the spatial econometric models have highlighted that a country with high GDP has some sort of \"suction\" effect on neighbouring countries with lower GDP along with the freight performance. This is especially true for rail freight. In the long run, the outlined results may even support strategic decision-makers in managing the economic impacts of both road and rail freight transport at the regional level.","PeriodicalId":45104,"journal":{"name":"Acta Oeconomica","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49265227","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}
Economies, including the European Union, face the risk of losing ability to maintain their competitive positions on the global scale and of related inability to generate value added up to satisfactory degree. We therefore examine factors assumedly having positive impact on the domestic value added in exports, as a recently introduced key indicator of country's export competitiveness, reported in the TiVA database. The main aim of our paper is to test, for the selected countries, the relationships of the domestic value added in exports with the following factors: (1) number of patent applications per million inhabitants, (2) foreign direct investment per capita, (3) business expenditure on research and development as a percentage of GDP and (4) resource productivity as control variable. We prove by panel data analysis that the domestic value added in exports increases with an increase in all deployed independent variables as well as in control variable.
{"title":"Determinants of domestic value added in exports of the EU countries","authors":"Z. Kittová, D. Steinhauser, Kristína Drieniková","doi":"10.1556/032.2023.00017","DOIUrl":"https://doi.org/10.1556/032.2023.00017","url":null,"abstract":"Economies, including the European Union, face the risk of losing ability to maintain their competitive positions on the global scale and of related inability to generate value added up to satisfactory degree. We therefore examine factors assumedly having positive impact on the domestic value added in exports, as a recently introduced key indicator of country's export competitiveness, reported in the TiVA database. The main aim of our paper is to test, for the selected countries, the relationships of the domestic value added in exports with the following factors: (1) number of patent applications per million inhabitants, (2) foreign direct investment per capita, (3) business expenditure on research and development as a percentage of GDP and (4) resource productivity as control variable. We prove by panel data analysis that the domestic value added in exports increases with an increase in all deployed independent variables as well as in control variable.","PeriodicalId":45104,"journal":{"name":"Acta Oeconomica","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42464389","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}
It has been known for decades that in a given year and in a given country, with the rise in lifetime income, life expectancy also rises. The difference between the richest and the poorest stratas' life expectancies is called the longevity gap. Recently, as the gap has generally been growing, it has received more and more attention. The issue is important in itself, but it has also an obvious impact on redistribution in the pension system: the greater the longevity gap, the greater is the redistribution from the low benefit pensioners to the high benefit ones in a given pension system. Econometrically estimating the life expectancy-income function may help the analysis. In our short study, first we give a simple estimation, and then we show the influence of the estimate on the redistribution.
{"title":"A simple estimation of the longevity gap and redistribution in the pension system","authors":"A. Simonovits, M. Lackó","doi":"10.1556/032.2023.00016","DOIUrl":"https://doi.org/10.1556/032.2023.00016","url":null,"abstract":"It has been known for decades that in a given year and in a given country, with the rise in lifetime income, life expectancy also rises. The difference between the richest and the poorest stratas' life expectancies is called the longevity gap. Recently, as the gap has generally been growing, it has received more and more attention. The issue is important in itself, but it has also an obvious impact on redistribution in the pension system: the greater the longevity gap, the greater is the redistribution from the low benefit pensioners to the high benefit ones in a given pension system. Econometrically estimating the life expectancy-income function may help the analysis. In our short study, first we give a simple estimation, and then we show the influence of the estimate on the redistribution.","PeriodicalId":45104,"journal":{"name":"Acta Oeconomica","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43438134","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}
Jordan Kjosevski, Mihail Petkovski, Aleksandar Stojkov
Abstract The main goal of this paper is to analyse the impact of pension funds on capital market development in 11 new EU member states from Central and Eastern Europe using annual data for the period between 2000 and 2019. Given the geographical, institutional, political and economic differences across these countries, we split them into three homogenous groups: Balkan, Baltic and Visegrad countries. We use three different variables as a proxy for capital markets growth: stock market capitalization, the value of stock traded, and private bond market capitalization. We apply dynamic and fully-modified ordinary least squares to examine the relationship between the variables. The empirical results indicate that pension funds have a positive effect on the bond markets growth in all sub-groups but they do not impact the stock market growth in the Balkan and Baltic countries.
{"title":"The role of pension funds in capital market development in the new EU member states: An empirical panel cointegration approach","authors":"Jordan Kjosevski, Mihail Petkovski, Aleksandar Stojkov","doi":"10.1556/032.2023.00015","DOIUrl":"https://doi.org/10.1556/032.2023.00015","url":null,"abstract":"Abstract The main goal of this paper is to analyse the impact of pension funds on capital market development in 11 new EU member states from Central and Eastern Europe using annual data for the period between 2000 and 2019. Given the geographical, institutional, political and economic differences across these countries, we split them into three homogenous groups: Balkan, Baltic and Visegrad countries. We use three different variables as a proxy for capital markets growth: stock market capitalization, the value of stock traded, and private bond market capitalization. We apply dynamic and fully-modified ordinary least squares to examine the relationship between the variables. The empirical results indicate that pension funds have a positive effect on the bond markets growth in all sub-groups but they do not impact the stock market growth in the Balkan and Baltic countries.","PeriodicalId":45104,"journal":{"name":"Acta Oeconomica","volume":"162 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135187309","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}
J. Krekó, Hanna Erős, Bori Greskovics, Áron Hajnal, Á. Scharle
The study examines the income redistribution effects of the Hungarian flat-tax and the recently introduced family allowance scheme. They were done on the basis of people's individual data for 2007, 2011 and 2020, which yields more accurate estimates than the previous studies based on aggregate or survey data. Between 2011 and 2013, progressive taxation was abolished, and a flat income tax was introduced, along with a substantial widening of pre-existing family tax allowances. We find that the tax reform has favoured high-income earners and taxpayers with children, while the main losers were low-income and/or childless workers. While the share of family tax allowances is somewhat lower for the high-income deciles, this effect is in practice negligible, therefore the income tax system can still be considered flat. The family tax allowance scheme favours wealthy families with many children over low-income families with fewer or no children. The biggest winners of the scheme are the taxpayers in the top income decile with three or more children: these 22,000 taxpayers (that is, 2% of all recipients) receive 10% of the total amount of the family tax allowance, and almost a third of the credit allocated to families with three or more children.
{"title":"The redistributive effect of the Hungarian flat tax and family allowance system","authors":"J. Krekó, Hanna Erős, Bori Greskovics, Áron Hajnal, Á. Scharle","doi":"10.1556/032.2023.00011","DOIUrl":"https://doi.org/10.1556/032.2023.00011","url":null,"abstract":"The study examines the income redistribution effects of the Hungarian flat-tax and the recently introduced family allowance scheme. They were done on the basis of people's individual data for 2007, 2011 and 2020, which yields more accurate estimates than the previous studies based on aggregate or survey data. Between 2011 and 2013, progressive taxation was abolished, and a flat income tax was introduced, along with a substantial widening of pre-existing family tax allowances. We find that the tax reform has favoured high-income earners and taxpayers with children, while the main losers were low-income and/or childless workers. While the share of family tax allowances is somewhat lower for the high-income deciles, this effect is in practice negligible, therefore the income tax system can still be considered flat. The family tax allowance scheme favours wealthy families with many children over low-income families with fewer or no children. The biggest winners of the scheme are the taxpayers in the top income decile with three or more children: these 22,000 taxpayers (that is, 2% of all recipients) receive 10% of the total amount of the family tax allowance, and almost a third of the credit allocated to families with three or more children.","PeriodicalId":45104,"journal":{"name":"Acta Oeconomica","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46115328","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}
Danijela Pantović, Aleksandra Fedajev, Isidora Milošević
The COVID-19 crisis has put the European Union's (EU) ability to respond to external challenges to test. It is not a new issue that has arisen due to the current crisis. The global economic crisis of 2008, and, in particular, the sovereign debt crisis of 2010, highlighted the need for institutional, policy and political reform to ensure the stability and long-term sustainability of the EU project. The EU's asymmetric degrees of integration, in terms of Economic and Monetary Union (EMU) and non-EMU members, resulted in a diverse response to the crisis and, more importantly, mixed-effects from monetary and fiscal policies. This study aims to research the impact of monetary and fiscal policies between 2007 and 2015 on economic growth and employment. The findings show that loose monetary policies at the EU, EMU and non-EMU levels boosted economic growth and development. On the other hand, restrictive fiscal policy had favourably influenced GDP and employment by reducing inflationary pressures produced by expansive monetary policy. However, fiscal policy had a greater impact in the non-EMU countries, demonstrating that this policy can act as a stabilizing force in the face of an overly expansive and common monetary policy. In order to respond effectively to the current and future crises, the EU government should overhaul the way monetary and fiscal policy is conducted and coordinated.
{"title":"Monetary and fiscal policies in the EU. Is there a difference between EMU and non-EMU members?","authors":"Danijela Pantović, Aleksandra Fedajev, Isidora Milošević","doi":"10.1556/032.2023.00006","DOIUrl":"https://doi.org/10.1556/032.2023.00006","url":null,"abstract":"The COVID-19 crisis has put the European Union's (EU) ability to respond to external challenges to test. It is not a new issue that has arisen due to the current crisis. The global economic crisis of 2008, and, in particular, the sovereign debt crisis of 2010, highlighted the need for institutional, policy and political reform to ensure the stability and long-term sustainability of the EU project. The EU's asymmetric degrees of integration, in terms of Economic and Monetary Union (EMU) and non-EMU members, resulted in a diverse response to the crisis and, more importantly, mixed-effects from monetary and fiscal policies. This study aims to research the impact of monetary and fiscal policies between 2007 and 2015 on economic growth and employment. The findings show that loose monetary policies at the EU, EMU and non-EMU levels boosted economic growth and development. On the other hand, restrictive fiscal policy had favourably influenced GDP and employment by reducing inflationary pressures produced by expansive monetary policy. However, fiscal policy had a greater impact in the non-EMU countries, demonstrating that this policy can act as a stabilizing force in the face of an overly expansive and common monetary policy. In order to respond effectively to the current and future crises, the EU government should overhaul the way monetary and fiscal policy is conducted and coordinated.","PeriodicalId":45104,"journal":{"name":"Acta Oeconomica","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41781921","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}
Far the most acknowledged and influential author in the economics of Eastern Europe has been János Kornai, the theorist of economic systems and a prolific writer on a variety of subjects in the seventy years of his academic career. His output appeared in more than a dozen of languages. He was criticized and appreciated, especially on the occasion of his 90th birthday, commemorated by – yet another – Festschrift, special issues of academic journals, later followed up by countless obituaries paying the due tribute to someone who has never made to the Nobel Prize, but whose influence definitely exceeded that of many recipients. In this essay we avoid the usual chronological description and highlight certain major themes and try to establish his place in the history of global economic thought. We are aware of our constraints, since it would perhaps take a monograph rather than an article to serve justice to this exceptional academic output of his.
{"title":"The lonely giant: An overview of the momentous oeuvre of János Kornai","authors":"L. Csaba","doi":"10.1556/032.2023.00002","DOIUrl":"https://doi.org/10.1556/032.2023.00002","url":null,"abstract":"Far the most acknowledged and influential author in the economics of Eastern Europe has been János Kornai, the theorist of economic systems and a prolific writer on a variety of subjects in the seventy years of his academic career. His output appeared in more than a dozen of languages. He was criticized and appreciated, especially on the occasion of his 90th birthday, commemorated by – yet another – Festschrift, special issues of academic journals, later followed up by countless obituaries paying the due tribute to someone who has never made to the Nobel Prize, but whose influence definitely exceeded that of many recipients. In this essay we avoid the usual chronological description and highlight certain major themes and try to establish his place in the history of global economic thought. We are aware of our constraints, since it would perhaps take a monograph rather than an article to serve justice to this exceptional academic output of his.","PeriodicalId":45104,"journal":{"name":"Acta Oeconomica","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46547738","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}
Fluctuating prices can cause unintended redistribution of income and wealth, which may be particularly painful to lower income households. Our study examines the indirect effects of this redistribution in an empirical way: it focuses on the capital market distortions of inflation and the disparities in wealth and income. Consumer Price Index (CPI) measures average inflation. However, households feel different inflation rates because their expenditure patterns are different from the ‘average’ patterns. We used the Kruskal – Wallis H test to determine if there are statistically significant differences between low- and high-income households. We calculated alternative inflation rates based on income deciles' different consumption basket. The study finds that households with low income often feel higher inflation than in the actual price indices published by the statistical offices. As our research shows, individuals in different wealth deciles perceive significantly different inflation. Our results also provide important information for economic policymakers, because if social groups perceive different inflation, it modifies the expected behaviour of the population, thereby weakening the economic policy effectiveness of different decisions.
{"title":"Analysis of the inflationary redistribution of consumption and wealth, evidence from Hungary","authors":"Zoltán Sipiczki, Anett Parádi Dolgos, J. Varga","doi":"10.1556/032.2023.00008","DOIUrl":"https://doi.org/10.1556/032.2023.00008","url":null,"abstract":"Fluctuating prices can cause unintended redistribution of income and wealth, which may be particularly painful to lower income households. Our study examines the indirect effects of this redistribution in an empirical way: it focuses on the capital market distortions of inflation and the disparities in wealth and income. Consumer Price Index (CPI) measures average inflation. However, households feel different inflation rates because their expenditure patterns are different from the ‘average’ patterns. We used the Kruskal – Wallis H test to determine if there are statistically significant differences between low- and high-income households. We calculated alternative inflation rates based on income deciles' different consumption basket. The study finds that households with low income often feel higher inflation than in the actual price indices published by the statistical offices. As our research shows, individuals in different wealth deciles perceive significantly different inflation. Our results also provide important information for economic policymakers, because if social groups perceive different inflation, it modifies the expected behaviour of the population, thereby weakening the economic policy effectiveness of different decisions.","PeriodicalId":45104,"journal":{"name":"Acta Oeconomica","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45751399","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 article tests the popular Lee-Carter model's performance for Hungarian mortality rate forecasting. Hungary passed through a mortality crisis which makes the task particularly difficult. Previous forecasts and model choices are validated, and updated forecasts are produced. We find that the behaviour of mortality rates is normalizing, and so the basic Lee-Carter model is becoming applicable.
{"title":"Testing the Lee-Carter model on Hungarian mortality data","authors":"Gábor Petneházi, J. Gáll","doi":"10.1556/032.2023.00010","DOIUrl":"https://doi.org/10.1556/032.2023.00010","url":null,"abstract":"This article tests the popular Lee-Carter model's performance for Hungarian mortality rate forecasting. Hungary passed through a mortality crisis which makes the task particularly difficult. Previous forecasts and model choices are validated, and updated forecasts are produced. We find that the behaviour of mortality rates is normalizing, and so the basic Lee-Carter model is becoming applicable.","PeriodicalId":45104,"journal":{"name":"Acta Oeconomica","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46392940","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：