Pub Date : 2024-05-14DOI: 10.1177/23210222241247697
C. M. Kasim, S. Harikumar
Recent debates highlight that agriculture-based strategies can enhance food security. Thus, this article examined the incidence and determinants of food security of agricultural households in Kuttanad, a wetland region situated in the southern part of the state of Kerala in India. Towards this objective, we have collected food consumption data from households and converted them into an equivalent amount of calorie intake. Further, we define food security in terms of calorie adequacy using the minimum calorie norm of 1,800 kcal suggested by the Food and Agricultural Organization for India. Our empirical results reveal that 37% of the sample households are food insecure. The incidence of food insecurity is higher among poor sections like labour households, Antyodaya Anna Yojana (AAY), and Scheduled Castes families. Results of Probit regression show that below poverty line and AAY families are less likely to be food secure than above poverty line families. The purchase of cereals from the Public Distribution System is found to have a positive impact on the food security status of the households. Both farm income and non-farm income positively influence the probability of food security. The study concludes that there are impediments to realizing the linkages between agriculture and food security. JEL Classification: Q10, Q18, I32, C25
{"title":"Determinants of Food Security Status of Agricultural Households: An Empirical Investigation from Kuttanad Wetland System in Kerala, India","authors":"C. M. Kasim, S. Harikumar","doi":"10.1177/23210222241247697","DOIUrl":"https://doi.org/10.1177/23210222241247697","url":null,"abstract":"Recent debates highlight that agriculture-based strategies can enhance food security. Thus, this article examined the incidence and determinants of food security of agricultural households in Kuttanad, a wetland region situated in the southern part of the state of Kerala in India. Towards this objective, we have collected food consumption data from households and converted them into an equivalent amount of calorie intake. Further, we define food security in terms of calorie adequacy using the minimum calorie norm of 1,800 kcal suggested by the Food and Agricultural Organization for India. Our empirical results reveal that 37% of the sample households are food insecure. The incidence of food insecurity is higher among poor sections like labour households, Antyodaya Anna Yojana (AAY), and Scheduled Castes families. Results of Probit regression show that below poverty line and AAY families are less likely to be food secure than above poverty line families. The purchase of cereals from the Public Distribution System is found to have a positive impact on the food security status of the households. Both farm income and non-farm income positively influence the probability of food security. The study concludes that there are impediments to realizing the linkages between agriculture and food security. JEL Classification: Q10, Q18, I32, C25","PeriodicalId":37410,"journal":{"name":"Studies in Microeconomics","volume":"48 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140979125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-12DOI: 10.1177/23210222241237030
Siwan Anderson
On a global scale, India ranks very poorly in terms of gender equality. This overall indicator masks important heterogeneities across the separate measures of female empowerment. India scores very highly with regards to equality of civil liberties and the political participation of women. But the country falls well below the global average with respect to equal access to economic resources and protection from gender-based violence. These poorer empowerment indicators have persisted not only in the wake of strong economic progress, but also in the context of an impressive set of government led reforms and policies targeting women. These different initiatives have successfully augmented women’s agency in both the private and public spheres of life, but women and girls still face extreme discrimination and violence. The salience of restrictive local customs appears to be a core hindrance towards transformative change. This paper reviews the economics literature which examines this complexity across the different dimensions of female empowerment in India. It highlights the newly emerging research focused on ameliorating gender biased norms and discusses potential steps forward. JEL Classifications: J12, J16
{"title":"The Complexity of Female Empowerment in India","authors":"Siwan Anderson","doi":"10.1177/23210222241237030","DOIUrl":"https://doi.org/10.1177/23210222241237030","url":null,"abstract":"On a global scale, India ranks very poorly in terms of gender equality. This overall indicator masks important heterogeneities across the separate measures of female empowerment. India scores very highly with regards to equality of civil liberties and the political participation of women. But the country falls well below the global average with respect to equal access to economic resources and protection from gender-based violence. These poorer empowerment indicators have persisted not only in the wake of strong economic progress, but also in the context of an impressive set of government led reforms and policies targeting women. These different initiatives have successfully augmented women’s agency in both the private and public spheres of life, but women and girls still face extreme discrimination and violence. The salience of restrictive local customs appears to be a core hindrance towards transformative change. This paper reviews the economics literature which examines this complexity across the different dimensions of female empowerment in India. It highlights the newly emerging research focused on ameliorating gender biased norms and discusses potential steps forward. JEL Classifications: J12, J16","PeriodicalId":37410,"journal":{"name":"Studies in Microeconomics","volume":"17 42","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140712011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-12DOI: 10.1177/23210222241235039
Vijay Singh Chauhan, Nikita Singla
In this paper, the authors present a long-term quantitative assessment of the trade facilitative environment in India. This pioneering exercise uses average cargo release time as a performance indicator, drawing upon secondary data sources based on transaction-level digital timestamps, as distinct from perception-based global surveys. It concludes that the unsegregated average import cargo release time has improved from 14 days in 2010–2011 to 86 hours and 44 hours for marine and air cargo, respectively, in 2023, yet falling short of 48 hours and 24 hours respective target set by the government. Highlighting the trade facilitation measures that have worked, the paper recommends focusing on the quality of regulatory measures, infrastructural improvement and wider adoption for the next generation of reforms. JEL Classifications: F1, F14, F18, F19
{"title":"Progress of Trade Facilitation in India: A Quantitative Assessment","authors":"Vijay Singh Chauhan, Nikita Singla","doi":"10.1177/23210222241235039","DOIUrl":"https://doi.org/10.1177/23210222241235039","url":null,"abstract":"In this paper, the authors present a long-term quantitative assessment of the trade facilitative environment in India. This pioneering exercise uses average cargo release time as a performance indicator, drawing upon secondary data sources based on transaction-level digital timestamps, as distinct from perception-based global surveys. It concludes that the unsegregated average import cargo release time has improved from 14 days in 2010–2011 to 86 hours and 44 hours for marine and air cargo, respectively, in 2023, yet falling short of 48 hours and 24 hours respective target set by the government. Highlighting the trade facilitation measures that have worked, the paper recommends focusing on the quality of regulatory measures, infrastructural improvement and wider adoption for the next generation of reforms. JEL Classifications: F1, F14, F18, F19","PeriodicalId":37410,"journal":{"name":"Studies in Microeconomics","volume":"73 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140709191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-10DOI: 10.1177/23210222241237041
Patrick Francois, Chris Bidner
We assume that even though voters prefer the policies of their favoured leader they value democracy more greatly. This means that voters on both sides of a polarised policy divide would be willing to sacrifice their preferred policy if it would mean preserving democracy. However voters on one side are unsure whether voters on the other side share this commitment to democracy. We show that in such a situation an autocratic populist leader can act in ways that will undermine opposing voters beliefs that the leader’s supporters continue to value democracy. If these beliefs become pessimistic enough, a self-reinforcing cycle of mutual suspicion between voters on opposing sides leads to the inexorable demise of democracy and its replacement by autocratic rule. Understanding this, an elected leader who aspires to rule via non-democratic means may follow such autocratic populist policies in order to entrench their rule. JEL Classifications: D72, P16, P17, P48
{"title":"The Problem with Authoritarian Populists","authors":"Patrick Francois, Chris Bidner","doi":"10.1177/23210222241237041","DOIUrl":"https://doi.org/10.1177/23210222241237041","url":null,"abstract":"We assume that even though voters prefer the policies of their favoured leader they value democracy more greatly. This means that voters on both sides of a polarised policy divide would be willing to sacrifice their preferred policy if it would mean preserving democracy. However voters on one side are unsure whether voters on the other side share this commitment to democracy. We show that in such a situation an autocratic populist leader can act in ways that will undermine opposing voters beliefs that the leader’s supporters continue to value democracy. If these beliefs become pessimistic enough, a self-reinforcing cycle of mutual suspicion between voters on opposing sides leads to the inexorable demise of democracy and its replacement by autocratic rule. Understanding this, an elected leader who aspires to rule via non-democratic means may follow such autocratic populist policies in order to entrench their rule. JEL Classifications: D72, P16, P17, P48","PeriodicalId":37410,"journal":{"name":"Studies in Microeconomics","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140717940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-02DOI: 10.1177/23210222241238846
Jean Drèze, A. Somanchi
Attempts have been made to estimate poverty in India using a biased dataset, by adjusting household weights to remove or reduce the bias. The effectiveness of this method, however, is uncertain. Simulation exercises suggest that its ability to correct poverty estimates varies wildly depending on the nature of the underlying bias, which may be hard to guess—there lies the rub. When the bias changes over time, estimating poverty trends becomes truly problematic. There are wider lessons for poverty estimation with biased or missing data. JEL Codes: C83, I32
{"title":"Weighty Evidence? Poverty Estimation with Missing Data","authors":"Jean Drèze, A. Somanchi","doi":"10.1177/23210222241238846","DOIUrl":"https://doi.org/10.1177/23210222241238846","url":null,"abstract":"Attempts have been made to estimate poverty in India using a biased dataset, by adjusting household weights to remove or reduce the bias. The effectiveness of this method, however, is uncertain. Simulation exercises suggest that its ability to correct poverty estimates varies wildly depending on the nature of the underlying bias, which may be hard to guess—there lies the rub. When the bias changes over time, estimating poverty trends becomes truly problematic. There are wider lessons for poverty estimation with biased or missing data. JEL Codes: C83, I32","PeriodicalId":37410,"journal":{"name":"Studies in Microeconomics","volume":"92 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140752637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-03-19DOI: 10.1177/23210222241235045
P. A. Muchtar
This study investigates how reciprocity works in a simple trust game when the subjects are framed as either lucky or unlucky. We induce luckiness perception to the second mover by introducing uncertainty with a different combination of possible multipliers, allowing us to observe the effect of outcome bias on trustworthiness while controlling for the wealth effect. We do not find a significantly different level of trustworthiness between lucky second movers and unlucky second movers. The result suggests the null effect of outcome bias on reciprocal behaviour. JEL Classifications: C91, D01, D63, D91
{"title":"Do Lucky People Reciprocate More? The Effect of Outcome Bias on Trustworthiness","authors":"P. A. Muchtar","doi":"10.1177/23210222241235045","DOIUrl":"https://doi.org/10.1177/23210222241235045","url":null,"abstract":"This study investigates how reciprocity works in a simple trust game when the subjects are framed as either lucky or unlucky. We induce luckiness perception to the second mover by introducing uncertainty with a different combination of possible multipliers, allowing us to observe the effect of outcome bias on trustworthiness while controlling for the wealth effect. We do not find a significantly different level of trustworthiness between lucky second movers and unlucky second movers. The result suggests the null effect of outcome bias on reciprocal behaviour. JEL Classifications: C91, D01, D63, D91","PeriodicalId":37410,"journal":{"name":"Studies in Microeconomics","volume":"65 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140229974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-18DOI: 10.1177/23210222241227013
Aadil Ummar Zaman, M. Zaman
This study investigates the total factor productivity (TFP) growth among urban cooperative banks in India during 2014–2020. The measurement of productivity is done using the data envelopment analysis-based Malmquist productivity index. We use two different models, viz., the intermediation approach and the production approach, to see how productivity estimates vary with the change in inputs and outputs. Our results show a large asymmetry in productivity estimates both among banks and over time. TFP estimates were consistently higher under the production approach vis-à-vis the intermediation approach. Further, the empirical results show that productivity gains were mainly determined by technological progress rather than efficiency improvements. Thus, collaborations in technological know-how can be beneficial to productivity growth. JEL Classifications: G15, G21, G34
{"title":"Analysing the Total Factor Productivity Change Among Urban Cooperative Banks in India: The Malmquist Productivity Approach","authors":"Aadil Ummar Zaman, M. Zaman","doi":"10.1177/23210222241227013","DOIUrl":"https://doi.org/10.1177/23210222241227013","url":null,"abstract":"This study investigates the total factor productivity (TFP) growth among urban cooperative banks in India during 2014–2020. The measurement of productivity is done using the data envelopment analysis-based Malmquist productivity index. We use two different models, viz., the intermediation approach and the production approach, to see how productivity estimates vary with the change in inputs and outputs. Our results show a large asymmetry in productivity estimates both among banks and over time. TFP estimates were consistently higher under the production approach vis-à-vis the intermediation approach. Further, the empirical results show that productivity gains were mainly determined by technological progress rather than efficiency improvements. Thus, collaborations in technological know-how can be beneficial to productivity growth. JEL Classifications: G15, G21, G34","PeriodicalId":37410,"journal":{"name":"Studies in Microeconomics","volume":"24 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140452563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-18DOI: 10.1177/23210222241228070
Promita Mukherjee, Biswajit Ray
The economic contributions of forest resources to the well-being of rural households are enormous. However, the level of forest benefits and degree of forest reliance vary across households. Drawing on a sustainable livelihood framework, this article explores how these forest resource uses correlate to the choice of livelihood strategies of rural forest-dependent households with a specific focus on the increased income of households, filling income shortfall, coping with shocks and livelihood diversification. Data were collected from 407 rural forest-dependent households in West Bengal, India. Based on the share of forest income in total household income, households were classified into different livelihood strategy groups. One-way ANOVA was run to test the income differences among these groups. The forest extractive strategy was found least income-generating of all livelihood strategies. Multinomial logit regression was carried out to identify the asset-based explanatory variables that influence livelihood strategy choices and forest dependency of the studied households. Analyses show that households’ differential access to or endowment of livelihood assets determines the choice of a rural household’s livelihood strategy and that forest resource uses of the households are livelihood strategy driven. Asset-poor households should be given opportunities to pursue livelihood activities with higher economic returns. JEL Classifications: Q23, Q56, Q57
{"title":"Household Livelihood Strategies and Forest Resource Use in Rural West Bengal, India","authors":"Promita Mukherjee, Biswajit Ray","doi":"10.1177/23210222241228070","DOIUrl":"https://doi.org/10.1177/23210222241228070","url":null,"abstract":"The economic contributions of forest resources to the well-being of rural households are enormous. However, the level of forest benefits and degree of forest reliance vary across households. Drawing on a sustainable livelihood framework, this article explores how these forest resource uses correlate to the choice of livelihood strategies of rural forest-dependent households with a specific focus on the increased income of households, filling income shortfall, coping with shocks and livelihood diversification. Data were collected from 407 rural forest-dependent households in West Bengal, India. Based on the share of forest income in total household income, households were classified into different livelihood strategy groups. One-way ANOVA was run to test the income differences among these groups. The forest extractive strategy was found least income-generating of all livelihood strategies. Multinomial logit regression was carried out to identify the asset-based explanatory variables that influence livelihood strategy choices and forest dependency of the studied households. Analyses show that households’ differential access to or endowment of livelihood assets determines the choice of a rural household’s livelihood strategy and that forest resource uses of the households are livelihood strategy driven. Asset-poor households should be given opportunities to pursue livelihood activities with higher economic returns. JEL Classifications: Q23, Q56, Q57","PeriodicalId":37410,"journal":{"name":"Studies in Microeconomics","volume":"5 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139959177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-01-11DOI: 10.1177/23210222231214850
Krishna Muniyoor, Aishwarya M, A. Sarma
In the economics literature, it is vividly portrayed that there is a great deal of disparity in wages received by workers across economic activities and occupations in India. The primary purpose of this article is to identify factors determining wage differentials and to measure wage inequality in managerial and professional occupations. Using unit-level records of periodic labour force survey (PLFS) published by the National Sample Survey Office (NSSO), we apply quantile regression model to examine how wage distribution is determined by personal, household and labour market characteristics. Our analysis is limited to persons aged between 15 and 65 and employed in managerial and professional occupations. The findings suggest that rural–urban dichotomy, gender, technical education, social group, job contract, type of enterprise and enterprise workforce size are statistically significant across quantiles and are important in explaining the wage distribution of managerial and professional workers in India. From a policy perspective, the invigoration of gender-based measures coupled with the expansion of technical education and labour market institutions are essential for bridging the wage disparity in India. JEL Classifications: J16, J24, J31
{"title":"Wage Differentials and Inequality in Managerial and Professional Jobs: Quantile Regression Analysis","authors":"Krishna Muniyoor, Aishwarya M, A. Sarma","doi":"10.1177/23210222231214850","DOIUrl":"https://doi.org/10.1177/23210222231214850","url":null,"abstract":"In the economics literature, it is vividly portrayed that there is a great deal of disparity in wages received by workers across economic activities and occupations in India. The primary purpose of this article is to identify factors determining wage differentials and to measure wage inequality in managerial and professional occupations. Using unit-level records of periodic labour force survey (PLFS) published by the National Sample Survey Office (NSSO), we apply quantile regression model to examine how wage distribution is determined by personal, household and labour market characteristics. Our analysis is limited to persons aged between 15 and 65 and employed in managerial and professional occupations. The findings suggest that rural–urban dichotomy, gender, technical education, social group, job contract, type of enterprise and enterprise workforce size are statistically significant across quantiles and are important in explaining the wage distribution of managerial and professional workers in India. From a policy perspective, the invigoration of gender-based measures coupled with the expansion of technical education and labour market institutions are essential for bridging the wage disparity in India. JEL Classifications: J16, J24, J31","PeriodicalId":37410,"journal":{"name":"Studies in Microeconomics","volume":"24 20","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139534239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-27DOI: 10.1177/23210222231206232
S. Poddar, Tanmoyee Banerjee (Chatterjee), Swapnendu Banerjee
The paper evaluates the contracting problem between a platform and a seller under information asymmetry where the seller holds private information about his/her cost for product quality. Price per product is influenced by seller’s product quality and platform’s service quality. Cost-sharing contract is more desirable as it induces a higher level of qualities and generates higher profit for the platform compared to revenue-sharing contract. The product quality and platform’s service quality vary negatively with the ad-valorem tax imposed on price of the product. We then introduce advertising in our model and observe that the level of advertising is lower under information asymmetry. JEL Classification: D86, L21, M37
{"title":"Optimal Contract Under Endogenous Platform Services: Implications of Tax and Advertising","authors":"S. Poddar, Tanmoyee Banerjee (Chatterjee), Swapnendu Banerjee","doi":"10.1177/23210222231206232","DOIUrl":"https://doi.org/10.1177/23210222231206232","url":null,"abstract":"The paper evaluates the contracting problem between a platform and a seller under information asymmetry where the seller holds private information about his/her cost for product quality. Price per product is influenced by seller’s product quality and platform’s service quality. Cost-sharing contract is more desirable as it induces a higher level of qualities and generates higher profit for the platform compared to revenue-sharing contract. The product quality and platform’s service quality vary negatively with the ad-valorem tax imposed on price of the product. We then introduce advertising in our model and observe that the level of advertising is lower under information asymmetry. JEL Classification: D86, L21, M37","PeriodicalId":37410,"journal":{"name":"Studies in Microeconomics","volume":"279 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139232422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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