This study analyzes how labor market frictions interact with firms’ decisions to reallocate workers across different occupations during labor market polarization. We compare the patterns of occupational reallocation within and across firms in the US and Germany in recent years. We find within-firm reallocation contributes significantly to the decline in employment in routine occupations in Germany, but much less so in the US. We construct a general equilibrium model of firm dynamics and find the model with different firing taxes can replicate the difference in firm-level adjustment patterns across these countries. We conduct two counterfactual experiments for each country, highlighting the different roles played by the within-firm cost of reorganizing the occupational mix and across-firm frictions created by firing taxes. The results suggest the latter plays a more significant role in labor market polarization. Higher firing costs would lead to greater and faster polarization in the US.
{"title":"Occupational reallocation within and across firms: Implications for labor market polarization","authors":"Toshihiko Mukoyama , Naoki Takayama , Satoshi Tanaka","doi":"10.1016/j.jmoneco.2024.103701","DOIUrl":"10.1016/j.jmoneco.2024.103701","url":null,"abstract":"<div><div>This study analyzes how labor market frictions interact with firms’ decisions to reallocate workers across different occupations during labor market polarization. We compare the patterns of occupational reallocation within and across firms in the US and Germany in recent years. We find within-firm reallocation contributes significantly to the decline in employment in routine occupations in Germany, but much less so in the US. We construct a general equilibrium model of firm dynamics and find the model with different firing taxes can replicate the difference in firm-level adjustment patterns across these countries. We conduct two counterfactual experiments for each country, highlighting the different roles played by the within-firm cost of reorganizing the occupational mix and across-firm frictions created by firing taxes. The results suggest the latter plays a more significant role in labor market polarization. Higher firing costs would lead to greater and faster polarization in the US.</div></div>","PeriodicalId":48407,"journal":{"name":"Journal of Monetary Economics","volume":"150 ","pages":"Article 103701"},"PeriodicalIF":4.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143372978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-01DOI: 10.1016/j.jmoneco.2024.103615
I develop a heterogeneous agents overlapping generations model to assess the welfare effects of substituting the US income security system with a UBI policy. I study two counterfactual exercises: an expenditure-neutral reform and a large, policy-oriented UBI reform with a transfer equivalent to $1000 monthly, both financed by changes in the consumption tax. The first exercise has a moderate fiscal impact, induces increases in the aggregate output and employment, and reduces earnings and wealth inequality. The second exercise requires a large increase in the consumption tax rate, decreases employment and output, and increases earnings inequality, which moves sideways for wealth. In both cases, disposable income and consumption are more equally distributed, with less accrual at the top. The two economies generate positive welfare gains, with those for the generous UBI economy being larger.
我建立了一个异质代理人世代重叠模型，以评估用全民医保政策取代美国收入保障制度的福利效应。我研究了两个反事实案例：一个是支出中性的改革，另一个是以政策为导向的大规模 UBI 改革，每月转移支付相当于 1000 美元，两者都由消费税的变化提供资金。第一种改革对财政的影响不大，能增加总产出和就业，减少收入和财富的不平等。第二种做法需要大幅提高消费税率，减少就业和产出，加剧收入不平等，财富不平等则呈横向发展。在这两种情况下，可支配收入和消费的分配更加平等，顶层累积的收入减少。这两种经济都产生了正的福利收益，而慷慨的 UBI 经济的福利收益更大。
{"title":"The macroeconomic effects of universal basic income programs","authors":"","doi":"10.1016/j.jmoneco.2024.103615","DOIUrl":"10.1016/j.jmoneco.2024.103615","url":null,"abstract":"<div><div>I develop a heterogeneous agents overlapping generations model to assess the welfare effects of substituting the US income security system with a UBI policy. I study two counterfactual exercises: an expenditure-neutral reform and a large, policy-oriented UBI reform with a transfer equivalent to $1000 monthly, both financed by changes in the consumption tax<span><span>. The first exercise has a moderate fiscal impact, induces increases in the aggregate output and employment, and reduces earnings and wealth inequality. The second exercise requires a large increase in the </span>consumption tax<span> rate, decreases employment and output, and increases earnings inequality, which moves sideways for wealth. In both cases, disposable income and consumption are more equally distributed, with less accrual at the top. The two economies generate positive welfare gains, with those for the generous UBI economy being larger.</span></span></div></div>","PeriodicalId":48407,"journal":{"name":"Journal of Monetary Economics","volume":"148 ","pages":"Article 103615"},"PeriodicalIF":4.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141501117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-01DOI: 10.1016/j.jmoneco.2024.103660
Régis Barnichon, Adam Hale Shapiro
The Phillips curve plays a central role in the macroeconomics literature. However, there is little consensus on the forcing variable that drives inflation in the model, i.e., on the appropriate measure of “slack” in the economy. In this work, we systematically assess the ability of variables commonly used in the literature to (i) predict and (ii) explain inflation fluctuations over time and across U.S. metropolitan areas. In particular, we exploit a newly constructed panel dataset with job openings and vacancy filling cost proxies covering 1982–2022. We find that the vacancy-unemployment (V/U) ratio and vacancy filling cost proxies outperform other slack measures, in particular the unemployment rate. Beveridge curve shifts—notably, movements in matching efficiency—are responsible for the superior performance of the V/U ratio over unemployment.
{"title":"Phillips meets Beveridge","authors":"Régis Barnichon, Adam Hale Shapiro","doi":"10.1016/j.jmoneco.2024.103660","DOIUrl":"10.1016/j.jmoneco.2024.103660","url":null,"abstract":"<div><div>The Phillips curve plays a central role in the macroeconomics literature. However, there is little consensus on the forcing variable that drives inflation in the model, i.e., on the appropriate measure of “slack” in the economy. In this work, we systematically assess the ability of variables commonly used in the literature to (i) predict and (ii) explain inflation fluctuations over time and across U.S. metropolitan areas. In particular, we exploit a newly constructed panel dataset with job openings and vacancy filling cost proxies covering 1982–2022. We find that the vacancy-unemployment (V/U) ratio and vacancy filling cost proxies outperform other slack measures, in particular the unemployment rate. Beveridge curve shifts—notably, movements in matching efficiency—are responsible for the superior performance of the V/U ratio over unemployment.</div></div>","PeriodicalId":48407,"journal":{"name":"Journal of Monetary Economics","volume":"148 ","pages":"Article 103660"},"PeriodicalIF":4.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142177714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-01DOI: 10.1016/j.jmoneco.2024.103652
Alberto Binetti , Francesco Nuzzi , Stefanie Stantcheva
This paper studies people’s understanding of inflation—their perceived causes, consequences, trade-offs-and the policies supported to mitigate its effects. We design a new, detailed online survey based on the rich existing literature in economics with two experimental components — a conjoint experiment and an information experiment — to examine how well public views align with established economic theories. Our key findings show that the major perceived causes of inflation include government actions, such as increased foreign aid and war-related expenditures, alongside rises in production costs attributed to recent events like the COVID-19 pandemic, oil price fluctuations, and supply chain disruptions. Respondents anticipate many negative consequences of inflation but the most noted one is the increased complexity and difficulty in household decision-making. Partisan differences emerge distinctly, with Republicans more likely to attribute inflation to government policies and foresee broader negative outcomes, whereas Democrats anticipate greater inequality effects. Inflation is perceived as an unambiguously negative phenomenon without any potential positive economic correlates. Notably, there is a widespread belief that managing inflation can be achieved without significant trade-offs, such as reducing economic activity or increasing unemployment. These perceptions are hard to move experimentally. In terms of policy responses, there is resistance to monetary tightening, consistent with the perceived absence of trade-offs and the belief that it is unnecessary to reduce economic activity to fight inflation. The widespread misconception that inflation rises following increases in interest rates even leads to support for rate cuts to reduce inflation. There is a clear preference for policies that are perceived to have other benefits, such as reducing government debt in progressive ways or increasing corporate taxes, and for support for vulnerable households, despite potential inflationary effects.
{"title":"People’s understanding of inflation","authors":"Alberto Binetti , Francesco Nuzzi , Stefanie Stantcheva","doi":"10.1016/j.jmoneco.2024.103652","DOIUrl":"10.1016/j.jmoneco.2024.103652","url":null,"abstract":"<div><div>This paper studies people’s understanding of inflation—their perceived causes, consequences, trade-offs-and the policies supported to mitigate its effects. We design a new, detailed online survey based on the rich existing literature in economics with two experimental components — a conjoint experiment and an information experiment — to examine how well public views align with established economic theories. Our key findings show that the major perceived causes of inflation include government actions, such as increased foreign aid and war-related expenditures, alongside rises in production costs attributed to recent events like the COVID-19 pandemic, oil price fluctuations, and supply chain disruptions. Respondents anticipate many negative consequences of inflation but the most noted one is the increased complexity and difficulty in household decision-making. Partisan differences emerge distinctly, with Republicans more likely to attribute inflation to government policies and foresee broader negative outcomes, whereas Democrats anticipate greater inequality effects. Inflation is perceived as an unambiguously negative phenomenon without any potential positive economic correlates. Notably, there is a widespread belief that managing inflation can be achieved without significant trade-offs, such as reducing economic activity or increasing unemployment. These perceptions are hard to move experimentally. In terms of policy responses, there is resistance to monetary tightening, consistent with the perceived absence of trade-offs and the belief that it is unnecessary to reduce economic activity to fight inflation. The widespread misconception that inflation rises following increases in interest rates even leads to support for <em>rate cuts</em> to reduce inflation. There is a clear preference for policies that are perceived to have other benefits, such as reducing government debt in progressive ways or increasing corporate taxes, and for support for vulnerable households, despite potential inflationary effects.</div></div>","PeriodicalId":48407,"journal":{"name":"Journal of Monetary Economics","volume":"148 ","pages":"Article 103652"},"PeriodicalIF":4.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142177733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-01DOI: 10.1016/j.jmoneco.2024.103674
Robert J. Shiller
{"title":"Comments on Alberto Binetti, Francesco Nuzzi, and Stefanie Stantcheva “people's understanding of inflation”","authors":"Robert J. Shiller","doi":"10.1016/j.jmoneco.2024.103674","DOIUrl":"10.1016/j.jmoneco.2024.103674","url":null,"abstract":"","PeriodicalId":48407,"journal":{"name":"Journal of Monetary Economics","volume":"148 ","pages":"Article 103674"},"PeriodicalIF":4.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142263189","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-01DOI: 10.1016/j.jmoneco.2024.103646
Donald Kohn
In these comments I extend the Romers' analysis to 1982–95, when inflation fell from 6 % to effective price stability with only one small recession. The Fed accomplished this, despite being only “moderately committed” to disinflation in the Romer classification, through careful weighing of shifting costs and benefits from tightening as inflation continued to moderate. Though policy backed off several times before stability was clearly in sight, success resulted from keeping focus on the ultimate price stability goal, pre-empting surges in inflation, and paying close attention to expectations. I close with suggestions about how the Fed can strengthen its price stability commitment in the 5-year review of its policy framework slated to begin in 2024.
{"title":"Comments on “Lessons from history for successful disinflation” by Christina D. Romer and David H. Romer","authors":"Donald Kohn","doi":"10.1016/j.jmoneco.2024.103646","DOIUrl":"10.1016/j.jmoneco.2024.103646","url":null,"abstract":"<div><div>In these comments I extend the Romers' analysis to 1982–95, when inflation fell from 6 % to effective price stability with only one small recession. The Fed accomplished this, despite being only “moderately committed” to disinflation in the Romer classification, through careful weighing of shifting costs and benefits from tightening as inflation continued to moderate. Though policy backed off several times before stability was clearly in sight, success resulted from keeping focus on the ultimate price stability goal, pre-empting surges in inflation, and paying close attention to expectations. I close with suggestions about how the Fed can strengthen its price stability commitment in the 5-year review of its policy framework slated to begin in 2024.</div></div>","PeriodicalId":48407,"journal":{"name":"Journal of Monetary Economics","volume":"148 ","pages":"Article 103646"},"PeriodicalIF":4.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141839379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-01DOI: 10.1016/j.jmoneco.2024.103685
Susanto Basu
This discussion comments on the ambitious paper, “Understanding the International Rise and Fall of Inflation Since 2020,” by Mai Chi Dao, Pierre-Olivier Gourinchas, Daniel Leigh, and Prachi Mishra. The strengths of the DGLM paper are manifest. There is much to learn from it, both about the commonalities of the inflation experiences of this large group of important countries and their differences, and I draw some lessons and policy implications. I will suggest that one could have learned even more if the authors had devoted some of their effort to comparing the recent global inflation episode to earlier experiences, and if they had related their empirical specification and results to predictions of models with search frictions.
本讨论对 Mai Chi Dao、Pierre-Olivier Gourinchas、Daniel Leigh 和 Prachi Mishra 所撰写的雄心勃勃的论文《理解 2020 年以来通货膨胀的国际涨落》进行了评论。DGLM 论文的优势显而易见。无论是关于这一大批重要国家的通货膨胀经验的共性，还是关于它们的差异，都有很多值得学习的地方。我想说的是，如果作者们能将最近的全球通胀事件与之前的经验进行比较，如果他们能将其经验规格和结果与搜索摩擦模型的预测联系起来，我们就能学到更多东西。
{"title":"Discussion of “Understanding the international rise and fall of inflation since 2020”","authors":"Susanto Basu","doi":"10.1016/j.jmoneco.2024.103685","DOIUrl":"10.1016/j.jmoneco.2024.103685","url":null,"abstract":"<div><div>This discussion comments on the ambitious paper, “Understanding the International Rise and Fall of Inflation Since 2020,” by Mai Chi Dao, Pierre-Olivier Gourinchas, Daniel Leigh, and Prachi Mishra. The strengths of the DGLM paper are manifest. There is much to learn from it, both about the commonalities of the inflation experiences of this large group of important countries and their differences, and I draw some lessons and policy implications. I will suggest that one could have learned even more if the authors had devoted some of their effort to comparing the recent global inflation episode to earlier experiences, and if they had related their empirical specification and results to predictions of models with search frictions.</div></div>","PeriodicalId":48407,"journal":{"name":"Journal of Monetary Economics","volume":"148 ","pages":"Article 103685"},"PeriodicalIF":4.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142592894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-01DOI: 10.1016/j.jmoneco.2024.103635
S. Borağan Aruoba, Thomas Drechsel
We study how monetary policy affects subcomponents of the Personal Consumption Expenditures Price Index (PCEPI) using local projections. Following a monetary policy contraction, the response of aggregate PCEPI turns significantly negative after over three years. There are stark differences in the timing and magnitude of the responses across price categories, including some prices that show an initially positive response. We discuss theoretical interpretations of our findings and point to useful directions for future theoretical research. We also show how to re-aggregate our cross-sectional estimates and their standard errors, taking into account dependence between different prices using a Seemingly Unrelated Regression approach. Re-aggregation exercises show that changes in expenditure behavior have not accelerated the long-lagged response of inflation to monetary policy.
{"title":"The long and variable lags of monetary policy: Evidence from disaggregated price indices","authors":"S. Borağan Aruoba, Thomas Drechsel","doi":"10.1016/j.jmoneco.2024.103635","DOIUrl":"10.1016/j.jmoneco.2024.103635","url":null,"abstract":"<div><div>We study how monetary policy affects subcomponents of the Personal Consumption Expenditures Price Index (PCEPI) using local projections. Following a monetary policy contraction, the response of aggregate PCEPI turns significantly negative after over three years. There are stark differences in the timing and magnitude of the responses across price categories, including some prices that show an initially positive response. We discuss theoretical interpretations of our findings and point to useful directions for future theoretical research. We also show how to re-aggregate our cross-sectional estimates and their standard errors, taking into account dependence between different prices using a Seemingly Unrelated Regression approach. Re-aggregation exercises show that changes in expenditure behavior have not accelerated the long-lagged response of inflation to monetary policy.</div></div>","PeriodicalId":48407,"journal":{"name":"Journal of Monetary Economics","volume":"148 ","pages":"Article 103635"},"PeriodicalIF":4.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141871725","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-01DOI: 10.1016/j.jmoneco.2024.103656
Jan Hatzius
We discuss the lessons that economic forecasters have learned about inflation since the Covid shock. First, physical shortages—e.g., in the auto sector—can push up goods prices much more dramatically than most forecasters expected following several decades near price stability. Second, imbalances in the rental housing market can sharply increase inflation and keep it high, especially in economies such as the US where rents are used to impute owner-occupied housing costs. Third, the jobs-workers gap can be a better measure of labor market balance than the unemployment rate or the employment/population ratio.
Originally prepared for the Spring 2024 NBER conference on “Inflation in the Covid era and beyond”.
{"title":"Inflation: What we have learned and what we need to know","authors":"Jan Hatzius","doi":"10.1016/j.jmoneco.2024.103656","DOIUrl":"10.1016/j.jmoneco.2024.103656","url":null,"abstract":"<div><div>We discuss the lessons that economic forecasters have learned about inflation since the Covid shock. First, physical shortages—e.g., in the auto sector—can push up goods prices much more dramatically than most forecasters expected following several decades near price stability. Second, imbalances in the rental housing market can sharply increase inflation and keep it high, especially in economies such as the US where rents are used to impute owner-occupied housing costs. Third, the jobs-workers gap can be a better measure of labor market balance than the unemployment rate or the employment/population ratio.</div><div>Originally prepared for the Spring 2024 NBER conference on “Inflation in the Covid era and beyond”.</div></div>","PeriodicalId":48407,"journal":{"name":"Journal of Monetary Economics","volume":"148 ","pages":"Article 103656"},"PeriodicalIF":4.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142177715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-01DOI: 10.1016/j.jmoneco.2024.103616
Motivated by the 2018–19 global tariff war, we develop a multi-country trade model with occupational choice, heterogeneous firms, and unemployment. The model features a complete tariff pass-through and positive optimal tariffs addressing product and labor-market distortions. The quantitative analysis of the model with four countries/regions shows that raising tariffs unilaterally by a country increases welfare but also raises unemployment and top incomes in that country, whereas having the opposite impact on tariff-targeted countries. A global tariff war reduces every country’s welfare, unemployment, and top-income inequality, whereas moving from a worldwide tariff war to free trade raises every country’s welfare, unemployment, and top-income inequality.
{"title":"Tariff wars, unemployment, and top incomes","authors":"","doi":"10.1016/j.jmoneco.2024.103616","DOIUrl":"10.1016/j.jmoneco.2024.103616","url":null,"abstract":"<div><div><span>Motivated by the 2018–19 global tariff war, we develop a multi-country trade model with occupational choice, heterogeneous firms, and unemployment. The model features a complete tariff pass-through and positive </span>optimal tariffs<span> addressing product and labor-market distortions. The quantitative analysis of the model with four countries/regions shows that raising tariffs unilaterally by a country increases welfare but also raises unemployment and top incomes in that country, whereas having the opposite impact on tariff-targeted countries. A global tariff war reduces every country’s welfare, unemployment, and top-income inequality, whereas moving from a worldwide tariff war to free trade raises every country’s welfare, unemployment, and top-income inequality.</span></div></div>","PeriodicalId":48407,"journal":{"name":"Journal of Monetary Economics","volume":"148 ","pages":"Article 103616"},"PeriodicalIF":4.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141408635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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