Pub Date : 2025-04-01Epub Date: 2025-01-27DOI: 10.1016/j.jmoneco.2025.103748
Marcelo Pedroni , Swapnil Singh , Christian A. Stoltenberg
We show that households’ private information on future income can be identified from the correlation between consumption growth and future income growth conditional on current income growth. Employing PSID data, we find that this conditional correlation is positive and significant. We use this evidence to structurally estimate a standard incomplete markets model and discover that US households possess enough advance information to reduce their income forecast errors by 15%. This significantly affects the measurement of consumption insurance. With advance information, 25% more income shocks pass through to consumption on average, and more than twice as much for the 5% asset poorest. Without advance information, the marginal benefits of public insurance are underestimated by an order of magnitude for some of the poorest wealth quantiles.
{"title":"Advance information and consumption insurance: Evidence and structural estimation","authors":"Marcelo Pedroni , Swapnil Singh , Christian A. Stoltenberg","doi":"10.1016/j.jmoneco.2025.103748","DOIUrl":"10.1016/j.jmoneco.2025.103748","url":null,"abstract":"<div><div>We show that households’ private information on future income can be identified from the correlation between consumption growth and future income growth <em>conditional</em> on current income growth. Employing PSID data, we find that this conditional correlation is positive and significant. We use this evidence to structurally estimate a standard incomplete markets model and discover that US households possess enough advance information to reduce their income forecast errors by 15%. This significantly affects the measurement of consumption insurance. With advance information, 25% more income shocks pass through to consumption on average, and more than twice as much for the 5% asset poorest. Without advance information, the marginal benefits of public insurance are underestimated by an order of magnitude for some of the poorest wealth quantiles.</div></div>","PeriodicalId":48407,"journal":{"name":"Journal of Monetary Economics","volume":"151 ","pages":"Article 103748"},"PeriodicalIF":4.3,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783571","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 : 2025-04-01Epub Date: 2025-01-28DOI: 10.1016/j.jmoneco.2025.103749
Piergiorgio Alessandri, Andrea Gazzani
How do shocks to the supply of natural gas affect output and inflation? To answer this question, we construct an instrument using daily news on the European gas market and employ it within a VAR model of the euro area. We find that negative supply shocks have sizable stagflationary effects and accounted for nearly 50 percent of the increase in core prices observed between 2021 and 2023. The propagation to core prices appears to be larger compared to oil shocks, suggesting that the structural differences between the two markets matter from an aggregate perspective.
{"title":"Natural gas and the macroeconomy: Not all energy shocks are alike","authors":"Piergiorgio Alessandri, Andrea Gazzani","doi":"10.1016/j.jmoneco.2025.103749","DOIUrl":"10.1016/j.jmoneco.2025.103749","url":null,"abstract":"<div><div>How do shocks to the supply of natural gas affect output and inflation? To answer this question, we construct an instrument using daily news on the European gas market and employ it within a VAR model of the euro area. We find that negative supply shocks have sizable stagflationary effects and accounted for nearly 50 percent of the increase in core prices observed between 2021 and 2023. The propagation to core prices appears to be larger compared to oil shocks, suggesting that the structural differences between the two markets matter from an aggregate perspective.</div></div>","PeriodicalId":48407,"journal":{"name":"Journal of Monetary Economics","volume":"151 ","pages":"Article 103749"},"PeriodicalIF":4.3,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783476","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 : 2025-04-01Epub Date: 2025-03-04DOI: 10.1016/j.jmoneco.2025.103763
Yossi Yakhin
The paper introduces foreign exchange interventions (FXIs) into an otherwise standard New-Keynesian small open economy model. It solves for the optimal FXI policy, suggests an implementable policy rule, and studies the transmission mechanism of FXIs. Relying on the portfolio balance channel, deviations from the uncovered interest rate parity (UIP) reflect financial inefficiencies. A policy rule that seeks to stabilize the UIP premium moves the economy toward its optimal allocation, regardless of the type of shocks it faces. Augmenting the rule with foreign reserves smoothing further improves welfare. The paper discusses the conditions under which strict targeting of the UIP premium is optimal. FXIs are transmitted by affecting the UIP premium. Purchasing foreign reserves increases the premium, thereby raising the effective return home agents face and depreciating the domestic currency. Consequently, domestic demand contracts and export expands. The results are robust to a variety of modeling alternatives for the financial sector.
{"title":"Foreign exchange interventions in the New-Keynesian model: Policy, transmission, and welfare","authors":"Yossi Yakhin","doi":"10.1016/j.jmoneco.2025.103763","DOIUrl":"10.1016/j.jmoneco.2025.103763","url":null,"abstract":"<div><div>The paper introduces foreign exchange interventions (FXIs) into an otherwise standard New-Keynesian small open economy model. It solves for the optimal FXI policy, suggests an implementable policy rule, and studies the transmission mechanism of FXIs. Relying on the portfolio balance channel, deviations from the uncovered interest rate parity (UIP) reflect financial inefficiencies. A policy rule that seeks to stabilize the UIP premium moves the economy toward its optimal allocation, regardless of the type of shocks it faces. Augmenting the rule with foreign reserves smoothing further improves welfare. The paper discusses the conditions under which strict targeting of the UIP premium is optimal. FXIs are transmitted by affecting the UIP premium. Purchasing foreign reserves increases the premium, thereby raising the effective return home agents face and depreciating the domestic currency. Consequently, domestic demand contracts and export expands. The results are robust to a variety of modeling alternatives for the financial sector.</div></div>","PeriodicalId":48407,"journal":{"name":"Journal of Monetary Economics","volume":"151 ","pages":"Article 103763"},"PeriodicalIF":4.3,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783480","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 : 2025-04-01Epub Date: 2025-02-11DOI: 10.1016/j.jmoneco.2025.103751
Leyla Jianyu Han
Revisions of consensus macroeconomic and earnings forecasts positively predict announcement-day forecast errors, whereas stock market returns during forecast revision periods negatively predict announcement-day returns. A dynamic noisy rational expectations model with periodic announcements quantitatively accounts for these findings. Under asymmetric information, informed investors’ forecast revisions positively predict forecast errors of the uninformed, causing average beliefs to underreact to new information and positively predict belief errors. Additionally, stock prices are partially driven by noise. Noise impact accumulates into stock prices during revision periods but gets corrected upon announcements. Therefore, revision period price changes negatively predict announcement-day returns.
{"title":"Announcements, expectations, and stock returns with asymmetric information","authors":"Leyla Jianyu Han","doi":"10.1016/j.jmoneco.2025.103751","DOIUrl":"10.1016/j.jmoneco.2025.103751","url":null,"abstract":"<div><div>Revisions of consensus macroeconomic and earnings forecasts positively predict announcement-day forecast errors, whereas stock market returns during forecast revision periods negatively predict announcement-day returns. A dynamic noisy rational expectations model with periodic announcements quantitatively accounts for these findings. Under asymmetric information, informed investors’ forecast revisions positively predict forecast errors of the uninformed, causing average beliefs to underreact to new information and positively predict belief errors. Additionally, stock prices are partially driven by noise. Noise impact accumulates into stock prices during revision periods but gets corrected upon announcements. Therefore, revision period price changes negatively predict announcement-day returns.</div></div>","PeriodicalId":48407,"journal":{"name":"Journal of Monetary Economics","volume":"151 ","pages":"Article 103751"},"PeriodicalIF":4.3,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783478","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 : 2025-04-01Epub Date: 2025-01-23DOI: 10.1016/j.jmoneco.2025.103746
Artur Doshchyn
Using the context of the dry-bulk shipping industry, I document that future returns on real assets are strongly predictable and negatively related to current asset prices, earnings, and investment during recessions. However, there is no such relationship outside recessions. This evidence points to significant liquidity constraints faced by firms during downturns, resulting in cash-in-the-market pricing of capital and rising expected returns for buyers. It is puzzling, however, why firms would not exploit opportunities to buy assets cheaply in recessions, e.g. by pre-arranging credit lines. I build and estimate a model of a competitive industry with credit frictions that can quantitatively account for return predictability during downturns, even though firms can use state-contingent contracts to preserve liquidity for when they need it most. Firms’ relative impatience limits their risk management, meaning that even well-capitalized firms can become constrained following adverse shocks. This results in significant asymmetric amplification of shocks in equilibrium.
{"title":"Sinking ships: Liquidity constraints and return predictability in recessions","authors":"Artur Doshchyn","doi":"10.1016/j.jmoneco.2025.103746","DOIUrl":"10.1016/j.jmoneco.2025.103746","url":null,"abstract":"<div><div>Using the context of the dry-bulk shipping industry, I document that future returns on real assets are strongly predictable and negatively related to current asset prices, earnings, and investment during recessions. However, there is no such relationship outside recessions. This evidence points to significant liquidity constraints faced by firms during downturns, resulting in cash-in-the-market pricing of capital and rising expected returns for buyers. It is puzzling, however, why firms would not exploit opportunities to buy assets cheaply in recessions, e.g. by pre-arranging credit lines. I build and estimate a model of a competitive industry with credit frictions that can quantitatively account for return predictability during downturns, even though firms can use state-contingent contracts to preserve liquidity for when they need it most. Firms’ relative impatience limits their risk management, meaning that even well-capitalized firms can become constrained following adverse shocks. This results in significant asymmetric amplification of shocks in equilibrium.</div></div>","PeriodicalId":48407,"journal":{"name":"Journal of Monetary Economics","volume":"151 ","pages":"Article 103746"},"PeriodicalIF":4.3,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783474","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 : 2025-04-01Epub Date: 2025-03-01DOI: 10.1016/j.jmoneco.2025.103762
Jorge Abad , Galo Nuño , Carlos Thomas
We analyze the impact of central bank digital currency (CBDC) on the operational framework of monetary policy and the macroeconomy. We develop a New-Keynesian model with a frictional interbank market, central bank deposit and lending facilities, and household preferences for different liquid assets, calibrated to the euro area. CBDC adoption implies a contraction in bank deposits, which is absorbed by a fall in reserves and, if large enough, increased recourse to central bank credit. The resulting changes in the operational framework (from ‘floor’ to ‘corridor’, and then to ‘ceiling’) thus shape the impact of CBDC on credit, investment and output.
{"title":"CBDC and the operational framework of monetary policy","authors":"Jorge Abad , Galo Nuño , Carlos Thomas","doi":"10.1016/j.jmoneco.2025.103762","DOIUrl":"10.1016/j.jmoneco.2025.103762","url":null,"abstract":"<div><div>We analyze the impact of central bank digital currency (CBDC) on the operational framework of monetary policy and the macroeconomy. We develop a New-Keynesian model with a frictional interbank market, central bank deposit and lending facilities, and household preferences for different liquid assets, calibrated to the euro area. CBDC adoption implies a contraction in bank deposits, which is absorbed by a fall in reserves and, if large enough, increased recourse to central bank credit. The resulting changes in the operational framework (from ‘floor’ to ‘corridor’, and then to ‘ceiling’) thus shape the impact of CBDC on credit, investment and output.</div></div>","PeriodicalId":48407,"journal":{"name":"Journal of Monetary Economics","volume":"151 ","pages":"Article 103762"},"PeriodicalIF":4.3,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783479","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 : 2025-04-01Epub Date: 2025-01-15DOI: 10.1016/j.jmoneco.2025.103745
Barthélémy Bonadio , Zhen Huo , Andrei A. Levchenko , Nitya Pandalai-Nayar
We study the roles of globalization and structural change in the evolution of international GDP comovement over the period 1978–2007. In this period, trade integration between advanced economies increased rapidly while average GDP correlations remained stable. Structural change – reallocation of economic activity towards services – is important in resolving this apparent puzzle. Business cycle shocks in the service sector are less internationally correlated than in manufacturing, and thus structural change lowers GDP comovement by increasing the GDP share of less correlated sectors. Globalization – reductions in trade costs – exerts two opposing effects on international comovement. While greater trade linkages increase international transmission of shocks, globalization also induces structural change towards services. We quantify these effects in a multi-country, multi-sector model of international production and trade. The two opposing effects of globalization on comovement largely cancel each other out, limiting the net contribution of globalization to increasing international comovement.
{"title":"Globalization, structural change and international comovement","authors":"Barthélémy Bonadio , Zhen Huo , Andrei A. Levchenko , Nitya Pandalai-Nayar","doi":"10.1016/j.jmoneco.2025.103745","DOIUrl":"10.1016/j.jmoneco.2025.103745","url":null,"abstract":"<div><div>We study the roles of globalization and structural change in the evolution of international GDP comovement over the period 1978–2007. In this period, trade integration between advanced economies increased rapidly while average GDP correlations remained stable. Structural change – reallocation of economic activity towards services – is important in resolving this apparent puzzle. Business cycle shocks in the service sector are less internationally correlated than in manufacturing, and thus structural change lowers GDP comovement by increasing the GDP share of less correlated sectors. Globalization – reductions in trade costs – exerts two opposing effects on international comovement. While greater trade linkages increase international transmission of shocks, globalization also induces structural change towards services. We quantify these effects in a multi-country, multi-sector model of international production and trade. The two opposing effects of globalization on comovement largely cancel each other out, limiting the net contribution of globalization to increasing international comovement.</div></div>","PeriodicalId":48407,"journal":{"name":"Journal of Monetary Economics","volume":"151 ","pages":"Article 103745"},"PeriodicalIF":4.3,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783473","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 : 2025-04-01Epub Date: 2025-01-13DOI: 10.1016/j.jmoneco.2025.103735
Miroslav Gabrovski , Athanasios Geromichalos , Lucas Herrenbrueck , Ioannis Kospentaris , Sukjoon Lee
A large literature in macroeconomics concludes that disruptions in financial markets have large negative effects on output and (un)employment. Though diverse, most papers in this literature share a common characteristic: they employ frameworks where money is not explicitly modeled. This paper argues that the omission of money may hinder a model’s ability to evaluate the real effects of financial shocks, since it deprives agents of a payment instrument that they could have used to cope with the resulting liquidity disruption. In a carefully calibrated New-Monetarist model with frictional labor, product, and financial markets, we show that the existence of money dampens or even nearly eliminates the real impact of financial shocks, depending on the nature of the shock. We also show that the propagation of financial shocks to the real economy depends on the inflation level: high inflation levels magnify the real effects of adverse financial shocks.
{"title":"The real effects of financial disruptions in a monetary economy","authors":"Miroslav Gabrovski , Athanasios Geromichalos , Lucas Herrenbrueck , Ioannis Kospentaris , Sukjoon Lee","doi":"10.1016/j.jmoneco.2025.103735","DOIUrl":"10.1016/j.jmoneco.2025.103735","url":null,"abstract":"<div><div>A large literature in macroeconomics concludes that disruptions in financial markets have large negative effects on output and (un)employment. Though diverse, most papers in this literature share a common characteristic: they employ frameworks where money is not explicitly modeled. This paper argues that the omission of money may hinder a model’s ability to evaluate the real effects of financial shocks, since it deprives agents of a payment instrument that they <em>could</em> have used to cope with the resulting liquidity disruption. In a carefully calibrated New-Monetarist model with frictional labor, product, and financial markets, we show that the existence of money dampens or even nearly eliminates the real impact of financial shocks, depending on the nature of the shock. We also show that the propagation of financial shocks to the real economy depends on the inflation level: high inflation levels magnify the real effects of adverse financial shocks.</div></div>","PeriodicalId":48407,"journal":{"name":"Journal of Monetary Economics","volume":"151 ","pages":"Article 103735"},"PeriodicalIF":4.3,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783472","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 : 2025-04-01Epub Date: 2025-01-07DOI: 10.1016/j.jmoneco.2025.103730
Le Xu , Yang Yu , Francesco Zanetti
We assemble a firm-level dataset to study the adoption and termination of suppliers over business cycles. We document that the aggregate number and rate of adoption of suppliers are procyclical. The rate of termination is acyclical at the aggregate level, and the cyclicality of termination encompasses large differences across producers. To account for these new facts, we develop a model with optimizing producers that incur separate costs for management, adoption, and termination of suppliers. These costs alter the incentives to scale up production and to replace existing with new suppliers. Sufficiently high convexity in management relative to adjustment costs is crucial to replicating the observed cyclicality in the adoption and termination rates at the producer and aggregate levels. We study the welfare implications of credit injections and subsidies on new inputs—the two main classes of supply-chain policies adopted in the U.S. since the COVID-19 pandemic. Credit injections generally outperform subsidies on new inputs, except when aggregate TFP is exceptionally high.
{"title":"The adoption and termination of suppliers over the business cycle","authors":"Le Xu , Yang Yu , Francesco Zanetti","doi":"10.1016/j.jmoneco.2025.103730","DOIUrl":"10.1016/j.jmoneco.2025.103730","url":null,"abstract":"<div><div>We assemble a firm-level dataset to study the adoption and termination of suppliers over business cycles. We document that the aggregate number and rate of adoption of suppliers are procyclical. The rate of termination is acyclical at the aggregate level, and the cyclicality of termination encompasses large differences across producers. To account for these new facts, we develop a model with optimizing producers that incur separate costs for management, adoption, and termination of suppliers. These costs alter the incentives to scale up production and to replace existing with new suppliers. Sufficiently high convexity in management relative to adjustment costs is crucial to replicating the observed cyclicality in the adoption and termination rates at the producer and aggregate levels. We study the welfare implications of credit injections and subsidies on new inputs—the two main classes of supply-chain policies adopted in the U.S. since the COVID-19 pandemic. Credit injections generally outperform subsidies on new inputs, except when aggregate TFP is exceptionally high.</div></div>","PeriodicalId":48407,"journal":{"name":"Journal of Monetary Economics","volume":"151 ","pages":"Article 103730"},"PeriodicalIF":4.3,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783573","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 : 2025-04-01Epub Date: 2024-12-25DOI: 10.1016/j.jmoneco.2024.103728
Olivier Darmouni , Kerry Y. Siani
How do asset purchases by central banks transmit to the real economy? Using micro-data on corporate balance sheets, we study firm behavior after the unprecedented policy support to corporate bond markets in 2020. As bond yields fell, firms issued bonds to accumulate large and persistent amounts of liquid assets. The effect on real investment was generally weak: many issuers already had access to bank liquidity and maintained equity payouts, while others used bond funds to pay back bank debt. This evidence sheds light on how corporate liquidity and financial heterogeneity matter for the macro-economy and the transmission of unconventional monetary policy.
{"title":"Bond market stimulus: Firm-level evidence","authors":"Olivier Darmouni , Kerry Y. Siani","doi":"10.1016/j.jmoneco.2024.103728","DOIUrl":"10.1016/j.jmoneco.2024.103728","url":null,"abstract":"<div><div>How do asset purchases by central banks transmit to the real economy? Using micro-data on corporate balance sheets, we study firm behavior after the unprecedented policy support to corporate bond markets in 2020. As bond yields fell, firms issued bonds to accumulate large and persistent amounts of liquid assets. The effect on real investment was generally weak: many issuers already had access to bank liquidity and maintained equity payouts, while others used bond funds to pay back bank debt. This evidence sheds light on how corporate liquidity and financial heterogeneity matter for the macro-economy and the transmission of unconventional monetary policy.</div></div>","PeriodicalId":48407,"journal":{"name":"Journal of Monetary Economics","volume":"151 ","pages":"Article 103728"},"PeriodicalIF":4.3,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783569","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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