Pub Date : 2024-03-21DOI: 10.1007/s40797-024-00269-3
Mara Giua, Luca Salvatici, Cristina Vaquero-Piñeiro, Roberto Solazzo
Do Geographical Indications (GIs) have an impact on local export dynamics? This paper uses a panel geo-referenced dataset and a quasi-experimental approach based on Propensity Score Matching and Difference in Differences methods. Specifically, the study focuses on the impact of the European GI scheme on the wine sector export dynamics of Italian municipalities. Findings suggest that GIs positively impact wine export performance. Additionally, the positive impact of GIs spills over to the overall agri-food sector: taking similar non-GI municipalities as a benchmark, GI municipalities saw a higher increase in the value, volume, and unit value of export both in the wine and the overall agri-food sector. The positive impact involves both extra- and intra-EU trade flows and it is confirmed for rural areas as well for municipalities belonging to regions with weak institutions.
{"title":"Do Territories with Geographical Indications Trade Better?","authors":"Mara Giua, Luca Salvatici, Cristina Vaquero-Piñeiro, Roberto Solazzo","doi":"10.1007/s40797-024-00269-3","DOIUrl":"https://doi.org/10.1007/s40797-024-00269-3","url":null,"abstract":"<p>Do Geographical Indications (GIs) have an impact on local export dynamics? This paper uses a panel geo-referenced dataset and a quasi-experimental approach based on Propensity Score Matching and Difference in Differences methods. Specifically, the study focuses on the impact of the European GI scheme on the wine sector export dynamics of Italian municipalities. Findings suggest that GIs positively impact wine export performance. Additionally, the positive impact of GIs spills over to the overall agri-food sector: taking similar non-GI municipalities as a benchmark, GI municipalities saw a higher increase in the value, volume, and unit value of export both in the wine and the overall agri-food sector. The positive impact involves both extra- and intra-EU trade flows and it is confirmed for rural areas as well for municipalities belonging to regions with weak institutions.</p>","PeriodicalId":43048,"journal":{"name":"Italian Economic Journal","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140203964","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}
Cultural activities are greatly beneficial to older individuals but, unfortunately, many still face significant barriers that limit their ability to enjoy the arts. To tackle this issue, we have analysed data from an Italian audience development and engagement program for seniors, which was implemented at local level. By using an agent-based model, we discuss the potential effectiveness of audience development policies before implementation. Our research shows that social policies aimed at promoting cohesion and creating personal relationships can significantly increase the success of such initiatives. Moreover, our findings underline the importance of implementing targeted policies and engaging key individuals to ensure that older people can access and enjoy cultural activities.
{"title":"Better Late than Never: Promoting Cultural Consumption Among the Elderly","authors":"Alessio Emanuele Biondo, Flavia Coda Moscarola, Roberto Zanola","doi":"10.1007/s40797-024-00270-w","DOIUrl":"https://doi.org/10.1007/s40797-024-00270-w","url":null,"abstract":"<p>Cultural activities are greatly beneficial to older individuals but, unfortunately, many still face significant barriers that limit their ability to enjoy the arts. To tackle this issue, we have analysed data from an Italian audience development and engagement program for seniors, which was implemented at local level. By using an agent-based model, we discuss the potential effectiveness of audience development policies before implementation. Our research shows that social policies aimed at promoting cohesion and creating personal relationships can significantly increase the success of such initiatives. Moreover, our findings underline the importance of implementing targeted policies and engaging key individuals to ensure that older people can access and enjoy cultural activities.</p>","PeriodicalId":43048,"journal":{"name":"Italian Economic Journal","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140033513","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 : 2024-02-23DOI: 10.1007/s40797-024-00267-5
Antonio Acconcia, Simone Chinetti, Tullio Jappelli
We study the response of consumption to anticipated and unanticipated liquidity gains using information on gifts (occasional and recurrent) and severance pay from the Italian Household Income and Wealth survey. Consistent with standard intertemporal consumption models, we find that unanticipated income shocks affect nondurable consumption while anticipated shocks have no effect. In the former case, the marginal propensity to consume is estimated to be around 7%. We find also that this consumption response is stronger for poor households (around 10%) and negligible for rich ones.
{"title":"Consumption and Liquidity Shocks","authors":"Antonio Acconcia, Simone Chinetti, Tullio Jappelli","doi":"10.1007/s40797-024-00267-5","DOIUrl":"https://doi.org/10.1007/s40797-024-00267-5","url":null,"abstract":"<p>We study the response of consumption to anticipated and unanticipated liquidity gains using information on gifts (occasional and recurrent) and severance pay from the Italian Household Income and Wealth survey. Consistent with standard intertemporal consumption models, we find that unanticipated income shocks affect nondurable consumption while anticipated shocks have no effect. In the former case, the marginal propensity to consume is estimated to be around 7%. We find also that this consumption response is stronger for poor households (around 10%) and negligible for rich ones.</p>","PeriodicalId":43048,"journal":{"name":"Italian Economic Journal","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139950372","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 : 2024-02-19DOI: 10.1007/s40797-024-00266-6
Marta Crispino, Vincenzo Mariani
This paper proposes a strategy for nowcasting tourist overnight stays in Italy by exploiting payment card data and Google Search indices. The strategy is applied to national and regional overnight stays at a time of a significant and unanticipated shock to tourism flows and payment habits (the COVID-19 pandemic). Our results show that indicators based on payment data are very informative for predicting tourist volumes, both at the national and at the regional level. Instead, the predictive power of Google Search data is more limited.
{"title":"A Tool to Nowcast Tourist Overnight Stays with Payment Data and Complementary Indicators","authors":"Marta Crispino, Vincenzo Mariani","doi":"10.1007/s40797-024-00266-6","DOIUrl":"https://doi.org/10.1007/s40797-024-00266-6","url":null,"abstract":"<p>This paper proposes a strategy for nowcasting tourist overnight stays in Italy by exploiting payment card data and Google Search indices. The strategy is applied to national and regional overnight stays at a time of a significant and unanticipated shock to tourism flows and payment habits (the COVID-19 pandemic). Our results show that indicators based on payment data are very informative for predicting tourist volumes, both at the national and at the regional level. Instead, the predictive power of Google Search data is more limited.</p>","PeriodicalId":43048,"journal":{"name":"Italian Economic Journal","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139921578","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 : 2024-01-31DOI: 10.1007/s40797-023-00263-1
Maria Luisa Maitino, Marco Mariani, Valentina Patacchini, Letizia Ravagli, Nicola Sciclone
The Italian guaranteed minimum income programme is the topic of a heated debate scarcely supported by empirical evidence. We investigate the effects of the programme on the number of days worked by different types of vulnerable jobseekers who receive the related income transfer in 2019 and are subject to activation attempts by employment services. We use data from Tuscany, in many ways a typical Italian region. To draw causal claims, we adopt a difference-in-differences approach with multiple time periods and staggered treatment adoptions. Our findings suggest that the programme has very limited heterogeneous effects among different types of users but also that, all in all, it is rather employment-neutral, in the sense that it neither creates significant disincentives to work nor succeeds in creating sufficient employment opportunities to solve the problem of job insecurity. An anti-poverty strategy that does not feed further welfare dependency would require a qualitative leap forward in activation efforts by employment services.
{"title":"The Employment Effects of the Italian Minimum Guaranteed Income Scheme Reddito di Cittadinanza","authors":"Maria Luisa Maitino, Marco Mariani, Valentina Patacchini, Letizia Ravagli, Nicola Sciclone","doi":"10.1007/s40797-023-00263-1","DOIUrl":"https://doi.org/10.1007/s40797-023-00263-1","url":null,"abstract":"<p>The Italian guaranteed minimum income programme is the topic of a heated debate scarcely supported by empirical evidence. We investigate the effects of the programme on the number of days worked by different types of vulnerable jobseekers who receive the related income transfer in 2019 and are subject to activation attempts by employment services. We use data from Tuscany, in many ways a typical Italian region. To draw causal claims, we adopt a difference-in-differences approach with multiple time periods and staggered treatment adoptions. Our findings suggest that the programme has very limited heterogeneous effects among different types of users but also that, all in all, it is rather employment-neutral, in the sense that it neither creates significant disincentives to work nor succeeds in creating sufficient employment opportunities to solve the problem of job insecurity. An anti-poverty strategy that does not feed further welfare dependency would require a qualitative leap forward in activation efforts by employment services.</p>","PeriodicalId":43048,"journal":{"name":"Italian Economic Journal","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139647814","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}
We provide new evidence on the effectiveness of hiring subsidies that target the long-term unemployed, by analysing a place-based policy, which encouraged permanent employment in the Italian South, an area characterised by a low participation rate and high levels of informal employment. To achieve identification, we use a triple difference estimator, which exploits three sources of variation: (i) the subsidy was only for the long-term unemployed and not for the short-term ones; (ii) although it was also available in Centre-North, it was significantly more generous in the South; (iii) it was in place until 2014. We find evidence that the policy facilitated access to permanent employment: after the program ended, the relative probability of finding a permanent job dropped for eligible individuals in southern regions. This effect does not seem to be driven by substitutions over time, across contracts or among jobseekers. An analysis of fiscal sustainability shows that the policy was globally in surplus. In terms of long-term effects, subsidised contracts used to last longer than non-subsidised ones.
{"title":"Jobs for the Long-Term Unemployed: Place-Based Policies in Depressed Areas","authors":"Emanuele Ciani, Adele Grompone, Elisabetta Olivieri","doi":"10.1007/s40797-023-00264-0","DOIUrl":"https://doi.org/10.1007/s40797-023-00264-0","url":null,"abstract":"<p>We provide new evidence on the effectiveness of hiring subsidies that target the long-term unemployed, by analysing a place-based policy, which encouraged permanent employment in the Italian South, an area characterised by a low participation rate and high levels of informal employment. To achieve identification, we use a triple difference estimator, which exploits three sources of variation: (i) the subsidy was only for the long-term unemployed and not for the short-term ones; (ii) although it was also available in Centre-North, it was significantly more generous in the South; (iii) it was in place until 2014. We find evidence that the policy facilitated access to permanent employment: after the program ended, the relative probability of finding a permanent job dropped for eligible individuals in southern regions. This effect does not seem to be driven by substitutions over time, across contracts or among jobseekers. An analysis of fiscal sustainability shows that the policy was globally in surplus. In terms of long-term effects, subsidised contracts used to last longer than non-subsidised ones.</p>","PeriodicalId":43048,"journal":{"name":"Italian Economic Journal","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139647955","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 : 2024-01-25DOI: 10.1007/s40797-023-00262-2
Marta Fana, Luca Giangregorio, Davide Villani
This paper examines the wage penalty of outsourced workers in France, providing novel insights to the existing literature. First, it investigates the extent to which the wage penalty differs between outsourced male and female workers. Our results reveal that outsourced workers experience pronounced wage penalty, with this effect being stronger for women. Second, in contrast to most studies, we analyse outsourcing across the entire job distribution. We find that the wage penalty is significantly higher for outsourced workers employed in jobs at the lower end of the wage distribution compared to those employed at the top. Third, we assess whether the wage penalty experienced by outsourced workers can be attributed to the tasks they perform, such as repetitiveness, forms of control, and managerial duties. The results show that the tasks performed, while can alter the wage penalty, do not significantly reshape the main results. Thus, differences in tasks do not appear to be a determining factor in the wage penalty of outsourced workers. Longitudinal analysis strengthens the validity of the cross-sectional findings, highlighting that the wage penalty associated with outsourcing does not result from shifts in individual employee characteristics but rather from disparities in their job status and other time-invariant attributes. In summary, being an outsourced worker implies a degradation in wage treatment, which is exacerbated by gender. Given the increasing importance of this employment practice, it underscores the urgent need for policy interventions to address these critical issues.
{"title":"The Outsourcing Wage Gap: Exploring the Interplay of Gender and Tasks Along the Job Distribution","authors":"Marta Fana, Luca Giangregorio, Davide Villani","doi":"10.1007/s40797-023-00262-2","DOIUrl":"https://doi.org/10.1007/s40797-023-00262-2","url":null,"abstract":"<p>This paper examines the wage penalty of outsourced workers in France, providing novel insights to the existing literature. First, it investigates the extent to which the wage penalty differs between outsourced male and female workers. Our results reveal that outsourced workers experience pronounced wage penalty, with this effect being stronger for women. Second, in contrast to most studies, we analyse outsourcing across the entire job distribution. We find that the wage penalty is significantly higher for outsourced workers employed in jobs at the lower end of the wage distribution compared to those employed at the top. Third, we assess whether the wage penalty experienced by outsourced workers can be attributed to the tasks they perform, such as repetitiveness, forms of control, and managerial duties. The results show that the tasks performed, while can alter the wage penalty, do not significantly reshape the main results. Thus, differences in tasks do not appear to be a determining factor in the wage penalty of outsourced workers. Longitudinal analysis strengthens the validity of the cross-sectional findings, highlighting that the wage penalty associated with outsourcing does not result from shifts in individual employee characteristics but rather from disparities in their job status and other time-invariant attributes. In summary, being an outsourced worker implies a degradation in wage treatment, which is exacerbated by gender. Given the increasing importance of this employment practice, it underscores the urgent need for policy interventions to address these critical issues.</p>","PeriodicalId":43048,"journal":{"name":"Italian Economic Journal","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139584077","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 : 2024-01-24DOI: 10.1007/s40797-024-00265-7
Chiara Mussida, Dario Sciulli
We explore the effects of income poverty on the probability of being in arrears in Italy. We account for endogeneity by using a bivariate discrete response model, which allows considering feedback effects from arrears to future poverty status and selection issues. We also offer an analysis by macro-region. We use longitudinal 2016–2019 EU-SILC data. Our results suggest that being in arrears is characterized by a significant trap effect, which, however, tends to decline over time. We also find the presence of feedback effects from arrears condition to future poverty status. Notably, current poverty status is negatively associated with current arrears status, but the correlation is positive in the medium term. This may suggest that income conditions need time to exert their effects on the probability of being in arrears. In the medium term, being in arrears increases the probability of being poor. We also note heterogeneity at the regional level.
{"title":"A Dynamic Analysis of Arrears and Income Poverty in Italy","authors":"Chiara Mussida, Dario Sciulli","doi":"10.1007/s40797-024-00265-7","DOIUrl":"https://doi.org/10.1007/s40797-024-00265-7","url":null,"abstract":"<p>We explore the effects of income poverty on the probability of being in arrears in Italy. We account for endogeneity by using a bivariate discrete response model, which allows considering feedback effects from arrears to future poverty status and selection issues. We also offer an analysis by macro-region. We use longitudinal 2016–2019 EU-SILC data. Our results suggest that being in arrears is characterized by a significant trap effect, which, however, tends to decline over time. We also find the presence of feedback effects from arrears condition to future poverty status. Notably, current poverty status is negatively associated with current arrears status, but the correlation is positive in the medium term. This may suggest that income conditions need time to exert their effects on the probability of being in arrears. In the medium term, being in arrears increases the probability of being poor. We also note heterogeneity at the regional level.</p>","PeriodicalId":43048,"journal":{"name":"Italian Economic Journal","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139584055","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 : 2024-01-19DOI: 10.1007/s40797-023-00260-4
Maria Rosaria Carillo, Valentina Chiariello, Rita De Siano, Luca Pennacchio
The longstanding debate on the effectiveness of foreign aid has largely concluded that corruption is one of the major reasons for the failure of aid to sustain development in recipient countries. This paper investigates whether greater involvement of women in recipient countries' political and economic life enhances the effectiveness of foreign aid by reducing the corruption that usually accompanies massive foreign aid. The hypothesis is tested by cross-country empirical analysis, addressing the potential endogeneity of aid and women’s participation using an IV approach. We provide robust and causal evidence that greater women’s political and labor market participation does reduce the corruption associated with foreign aid, especially when the aid targets sectors that enhance women’s well-being. Moreover, we find that while all the dimensions of women's social participation are effective in reducing corruption, the greatest effect derives from the political dimension.
长期以来,关于外援实效的讨论大多认为,腐败是外援无法维持受援国发展的主要原因之一。本文研究了妇女更多地参与受援国的政治和经济生活是否会通过减少通常伴随着大规模外援的腐败现象来提高外援的有效性。本文通过跨国实证分析检验了这一假设,并使用 IV 方法解决了援助和妇女参与的潜在内生性问题。我们提供了有力的因果关系证据,表明妇女更多地参与政治和劳动力市场确实会减少与外援相关的腐败现象,尤其是当援助的目标是提高妇女福利的部门时。此外,我们还发现,虽然妇女参与社会的所有方面都能有效减少腐败,但政治方面的影响最大。
{"title":"Foreign Aid and Corruption: Do Women Make the Difference?","authors":"Maria Rosaria Carillo, Valentina Chiariello, Rita De Siano, Luca Pennacchio","doi":"10.1007/s40797-023-00260-4","DOIUrl":"https://doi.org/10.1007/s40797-023-00260-4","url":null,"abstract":"<p>The longstanding debate on the effectiveness of foreign aid has largely concluded that corruption is one of the major reasons for the failure of aid to sustain development in recipient countries. This paper investigates whether greater involvement of women in recipient countries' political and economic life enhances the effectiveness of foreign aid by reducing the corruption that usually accompanies massive foreign aid. The hypothesis is tested by cross-country empirical analysis, addressing the potential endogeneity of aid and women’s participation using an IV approach. We provide robust and causal evidence that greater women’s political and labor market participation does reduce the corruption associated with foreign aid, especially when the aid targets sectors that enhance women’s well-being. Moreover, we find that while all the dimensions of women's social participation are effective in reducing corruption, the greatest effect derives from the political dimension.</p>","PeriodicalId":43048,"journal":{"name":"Italian Economic Journal","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139515075","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 : 2024-01-12DOI: 10.1007/s40797-023-00261-3
Domenico Depalo, Eliana Viviano
Hiring subsidies are among the most widely used policies to support employment growth for certain groups of workers or disadvantaged geographic areas. In this article, we analyze the medium-run consequences of a generous, non-targeted permanent hiring subsidy implemented throughout Italy in 2015, which was widely used by firms. The results indicate that firms benefiting from the subsidy increased in size. However, compared to other firms, the growth rate of capital–labour ratio and value added per worker were lower after the subsidy. We conclude that policies to stimulate hiring must be accompanied by other interventions to support capital accumulation.
{"title":"Hiring Subsidies and Firm Growth: Some New Evidence from Italy","authors":"Domenico Depalo, Eliana Viviano","doi":"10.1007/s40797-023-00261-3","DOIUrl":"https://doi.org/10.1007/s40797-023-00261-3","url":null,"abstract":"<p>Hiring subsidies are among the most widely used policies to support employment growth for certain groups of workers or disadvantaged geographic areas. In this article, we analyze the medium-run consequences of a generous, non-targeted permanent hiring subsidy implemented throughout Italy in 2015, which was widely used by firms. The results indicate that firms benefiting from the subsidy increased in size. However, compared to other firms, the growth rate of capital–labour ratio and value added per worker were lower after the subsidy. We conclude that policies to stimulate hiring must be accompanied by other interventions to support capital accumulation.</p>","PeriodicalId":43048,"journal":{"name":"Italian Economic Journal","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139459826","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}