Pub Date : 2025-10-01Epub Date: 2025-08-26DOI: 10.1016/j.jedc.2025.105168
Chamon Wieles , Jan Kwakkel , Willem L. Auping , J.W. van den End
We analyse shock and parameter uncertainty in a Dynamic Stochastic General Equilibrium (DSGE) model by exploratory modelling and analysis (EMA). This method evaluates in a novel way the performance of monetary policy under deep uncertainty about the shock and model parameters. Scenarios are designed based on the outcomes of interest for the policymaker. We assess the performance of different policies on their objectives in the scenarios. This maps out the policy trade-offs and supports the central bank in making robust policy decisions. We find that in response to a negative supply shock, policies with low interest rate smoothing and a strong response to inflation most obviously contribute to price stability under deep uncertainty.
{"title":"Scenario discovery to address deep uncertainty in monetary policy","authors":"Chamon Wieles , Jan Kwakkel , Willem L. Auping , J.W. van den End","doi":"10.1016/j.jedc.2025.105168","DOIUrl":"10.1016/j.jedc.2025.105168","url":null,"abstract":"<div><div>We analyse shock and parameter uncertainty in a Dynamic Stochastic General Equilibrium (DSGE) model by exploratory modelling and analysis (EMA). This method evaluates in a novel way the performance of monetary policy under deep uncertainty about the shock and model parameters. Scenarios are designed based on the outcomes of interest for the policymaker. We assess the performance of different policies on their objectives in the scenarios. This maps out the policy trade-offs and supports the central bank in making robust policy decisions. We find that in response to a negative supply shock, policies with low interest rate smoothing and a strong response to inflation most obviously contribute to price stability under deep uncertainty.</div></div>","PeriodicalId":48314,"journal":{"name":"Journal of Economic Dynamics & Control","volume":"179 ","pages":"Article 105168"},"PeriodicalIF":2.3,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145003799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-10-01Epub Date: 2025-08-14DOI: 10.1016/j.jedc.2025.105165
M'hamed Gaïgi , Vathana Ly Vath , Simone Scotti
The fishery industry is facing increasing challenges in the exploitation of marine resources. Marine resources are classic examples of common-property resources subject to fundamental problems of economic waste and over-exploitation, which may lead to resource destruction, including extinction. The past decades have highlighted the relevance of ecological catastrophes, such as the fate of the cod population in the Northwest Atlantic. These events do not occur with a constant frequency, but are clustered over time. Our objective is to study a harvesting management problem under the assumption that unexpected ecological disasters may occur in clusters. We model this clustering phenomenon using marked Hawkes processes. We characterize our value function as the unique solution to a Hamilton-Jacobi-Bellman inequality. We describe the optimal harvesting strategy by identifying the harvesting and non-harvesting regions. Our results are counterintuitive, challenging the generally accepted belief that, when facing an increasing risk of decimation due to disasters, the optimal harvesting policy should lead to a reduction in harvesting activity. These findings offer valuable insights into the fragile nature of fish resources, potentially explaining the collapse of fisheries in the Northwest Atlantic. Governments and international authorities must take action against the causes of such disasters, such as pollution and the overexploitation of marine resources, in order to reduce the risk of further decimation and to better assess and address the true cost of marine resource extinction. We further enrich our study with numerical analysis, providing additional insights into the optimal harvesting policy.
{"title":"Optimal harvesting under uncertain environment with clusters of catastrophes","authors":"M'hamed Gaïgi , Vathana Ly Vath , Simone Scotti","doi":"10.1016/j.jedc.2025.105165","DOIUrl":"10.1016/j.jedc.2025.105165","url":null,"abstract":"<div><div>The fishery industry is facing increasing challenges in the exploitation of marine resources. Marine resources are classic examples of common-property resources subject to fundamental problems of economic waste and over-exploitation, which may lead to resource destruction, including extinction. The past decades have highlighted the relevance of ecological catastrophes, such as the fate of the cod population in the Northwest Atlantic. These events do not occur with a constant frequency, but are clustered over time. Our objective is to study a harvesting management problem under the assumption that unexpected ecological disasters may occur in clusters. We model this clustering phenomenon using marked Hawkes processes. We characterize our value function as the unique solution to a Hamilton-Jacobi-Bellman inequality. We describe the optimal harvesting strategy by identifying the harvesting and non-harvesting regions. Our results are counterintuitive, challenging the generally accepted belief that, when facing an increasing risk of decimation due to disasters, the optimal harvesting policy should lead to a reduction in harvesting activity. These findings offer valuable insights into the fragile nature of fish resources, potentially explaining the collapse of fisheries in the Northwest Atlantic. Governments and international authorities must take action against the causes of such disasters, such as pollution and the overexploitation of marine resources, in order to reduce the risk of further decimation and to better assess and address the true cost of marine resource extinction. We further enrich our study with numerical analysis, providing additional insights into the optimal harvesting policy.</div></div>","PeriodicalId":48314,"journal":{"name":"Journal of Economic Dynamics & Control","volume":"179 ","pages":"Article 105165"},"PeriodicalIF":2.3,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144864595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-10-01Epub Date: 2025-09-03DOI: 10.1016/j.jedc.2025.105176
Fulvio Corsi , Luigi Longo , Francesco Cordoni
Starting from the theoretical observation that the identification problem of SVAR models arises from contemporaneous dependence among macroeconomic variables, we show, both theoretically and empirically, that such dependence tends to vanish as the observation frequency increases. By adopting nowcasted high-frequency data, we exploit this feature to identify structural shocks using standard short-run restrictions, thereby reducing or even eliminating the reliance on variable ordering. Our empirical analysis is divided into two parts: an illustrative application comparing identification strategies across different frequencies, and a structural section featuring (i) a Proxy(HF-)SVAR to recover exogenous monetary policy shocks, and (ii) an uncertainty shock analysis using high-frequency data to replicate the well-known dynamics found in the literature. The results align with recent findings and highlight the feasibility and usefulness of preserving high-frequency information in all variables.
{"title":"SVAR identification with nowcasted macroeconomic data","authors":"Fulvio Corsi , Luigi Longo , Francesco Cordoni","doi":"10.1016/j.jedc.2025.105176","DOIUrl":"10.1016/j.jedc.2025.105176","url":null,"abstract":"<div><div>Starting from the theoretical observation that the identification problem of SVAR models arises from contemporaneous dependence among macroeconomic variables, we show, both theoretically and empirically, that such dependence tends to vanish as the observation frequency increases. By adopting nowcasted high-frequency data, we exploit this feature to identify structural shocks using standard short-run restrictions, thereby reducing or even eliminating the reliance on variable ordering. Our empirical analysis is divided into two parts: an illustrative application comparing identification strategies across different frequencies, and a structural section featuring (i) a Proxy(HF-)SVAR to recover exogenous monetary policy shocks, and (ii) an uncertainty shock analysis using high-frequency data to replicate the well-known dynamics found in the literature. The results align with recent findings and highlight the feasibility and usefulness of preserving high-frequency information in all variables.</div></div>","PeriodicalId":48314,"journal":{"name":"Journal of Economic Dynamics & Control","volume":"179 ","pages":"Article 105176"},"PeriodicalIF":2.3,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145010248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-10-01Epub Date: 2025-08-05DOI: 10.1016/j.jedc.2025.105161
Benjamin Hemingway
The introduction of an unremunerated retail central bank digital currency (CBDC) is currently under consideration by several central banks. Motivated by the decline in transactional cash usage and the increase in online sales in the UK, this paper provides a theoretical framework to study the underlying drivers of these trends and the welfare implications of introducing an unremunerated retail CBDC. I develop a cash credit model with physical and digital retail sectors, endogenous entry of firms and directed consumer search. Calibrating to UK data between 2010 and 2022 the model suggests that there are positive welfare gains from introducing an unremunerated retail CBDC, but these have likely declined over time.
{"title":"The role of central bank digital currency in an increasingly digital economy","authors":"Benjamin Hemingway","doi":"10.1016/j.jedc.2025.105161","DOIUrl":"10.1016/j.jedc.2025.105161","url":null,"abstract":"<div><div>The introduction of an unremunerated retail central bank digital currency (CBDC) is currently under consideration by several central banks. Motivated by the decline in transactional cash usage and the increase in online sales in the UK, this paper provides a theoretical framework to study the underlying drivers of these trends and the welfare implications of introducing an unremunerated retail CBDC. I develop a cash credit model with physical and digital retail sectors, endogenous entry of firms and directed consumer search. Calibrating to UK data between 2010 and 2022 the model suggests that there are positive welfare gains from introducing an unremunerated retail CBDC, but these have likely declined over time.</div></div>","PeriodicalId":48314,"journal":{"name":"Journal of Economic Dynamics & Control","volume":"179 ","pages":"Article 105161"},"PeriodicalIF":2.3,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144827238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-10-01Epub Date: 2025-08-22DOI: 10.1016/j.jedc.2025.105166
Thorsten Glück , Zeno Adams
We examine the disruptions to global commodity flows following the default of a commodity trading firm. The physical commodity network is operated by a handful of large traders that are responsible for the timely delivery of raw materials and inputs to industrial production. We propose a model to simulate the resilience and response time of the network following a shock. Our results suggest that a number of commodity traders carry significant systemic risk. The forced removal of a trader from the network has considerable implications for the prices and availability of physical commodities over a period up to 12 months.
{"title":"Systemic risk of commodity traders","authors":"Thorsten Glück , Zeno Adams","doi":"10.1016/j.jedc.2025.105166","DOIUrl":"10.1016/j.jedc.2025.105166","url":null,"abstract":"<div><div>We examine the disruptions to global commodity flows following the default of a commodity trading firm. The physical commodity network is operated by a handful of large traders that are responsible for the timely delivery of raw materials and inputs to industrial production. We propose a model to simulate the resilience and response time of the network following a shock. Our results suggest that a number of commodity traders carry significant systemic risk. The forced removal of a trader from the network has considerable implications for the prices and availability of physical commodities over a period up to 12 months.</div></div>","PeriodicalId":48314,"journal":{"name":"Journal of Economic Dynamics & Control","volume":"179 ","pages":"Article 105166"},"PeriodicalIF":2.3,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144908132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-10-01Epub Date: 2025-09-02DOI: 10.1016/j.jedc.2025.105169
Kun Zhang , Nick Feltovich , Yanren Zhang
Work is ordinary and necessary for most people, but some people work excessively (“work persistence”), seemingly driven by internal forces. We theoretically and experimentally investigate the role of relative performance incentives in causing or exacerbating work persistence. In our setting, agents perform a task over two stages. In the first stage, they can earn prizes, which are allocated either randomly or according to relative performance. Afterwards, they have the opportunity to continue working in a second stage, with payment by piece rate and no competition against others. Our theoretical model of motivated belief updating predicts that agents adjust their beliefs asymmetrically: they attribute their relative performance more to their productivity if they win a prize, and more to luck if they lose. This bias leads winners of the first-stage prize to increase their effort in the subsequent piece-rate stage, but with no corresponding decrease in work effort by losers. Results from a real-effort experiment confirm these predictions: winners' effort in the piece-rate stage is roughly 30 percent higher when earlier bonus prizes had been allocated by performance, compared to when those prizes had been allocated randomly. Losers' effort is also higher – not lower – though this difference is not significant.
{"title":"Pride and persistence: Social comparisons in production","authors":"Kun Zhang , Nick Feltovich , Yanren Zhang","doi":"10.1016/j.jedc.2025.105169","DOIUrl":"10.1016/j.jedc.2025.105169","url":null,"abstract":"<div><div>Work is ordinary and necessary for most people, but some people work excessively (“work persistence”), seemingly driven by internal forces. We theoretically and experimentally investigate the role of relative performance incentives in causing or exacerbating work persistence. In our setting, agents perform a task over two stages. In the first stage, they can earn prizes, which are allocated either randomly or according to relative performance. Afterwards, they have the opportunity to continue working in a second stage, with payment by piece rate and no competition against others. Our theoretical model of motivated belief updating predicts that agents adjust their beliefs asymmetrically: they attribute their relative performance more to their productivity if they win a prize, and more to luck if they lose. This bias leads <em>winners</em> of the first-stage prize to increase their effort in the subsequent piece-rate stage, but with no corresponding decrease in work effort by <em>losers</em>. Results from a real-effort experiment confirm these predictions: winners' effort in the piece-rate stage is roughly 30 percent <em>higher</em> when earlier bonus prizes had been allocated by performance, compared to when those prizes had been allocated randomly. Losers' effort is also <em>higher</em> – not lower – though this difference is not significant.</div></div>","PeriodicalId":48314,"journal":{"name":"Journal of Economic Dynamics & Control","volume":"179 ","pages":"Article 105169"},"PeriodicalIF":2.3,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144989204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-10-01Epub Date: 2025-09-01DOI: 10.1016/j.jedc.2025.105167
Yan Wang , Juan Carlos Conesa
Income and wealth inequality has increased substantially in China in the last decades. We propose a multi-sector model with rich heterogeneity to quantify the impact on inequality of key changes that started in the early 1990s. We find that rural-urban migration has alleviated the increase in income inequality by limiting the increase in the rural-urban income gap, and that the emergence and growth of the private sector is the key driving force behind the increase in wealth inequality. Our quantitative exercise suggests that pretax income concentration will continue to increase until the 2050s, while wealth concentration has already peaked.
{"title":"The evolution of income and wealth inequality in China","authors":"Yan Wang , Juan Carlos Conesa","doi":"10.1016/j.jedc.2025.105167","DOIUrl":"10.1016/j.jedc.2025.105167","url":null,"abstract":"<div><div>Income and wealth inequality has increased substantially in China in the last decades. We propose a multi-sector model with rich heterogeneity to quantify the impact on inequality of key changes that started in the early 1990s. We find that rural-urban migration has alleviated the increase in income inequality by limiting the increase in the rural-urban income gap, and that the emergence and growth of the private sector is the key driving force behind the increase in wealth inequality. Our quantitative exercise suggests that pretax income concentration will continue to increase until the 2050s, while wealth concentration has already peaked.</div></div>","PeriodicalId":48314,"journal":{"name":"Journal of Economic Dynamics & Control","volume":"179 ","pages":"Article 105167"},"PeriodicalIF":2.3,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145010247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-10-01Epub Date: 2025-09-16DOI: 10.1016/j.jedc.2025.105180
Nihad Aliyev
We model investors facing ambiguity about the number of informed traders and characterize equilibrium in both financial and information markets. In the financial market, this ambiguity generates a premium that can be positive or negative, depending on traders' ambiguity attitude. The premium always increases with ambiguity aversion but only increases with ambiguity level when traders are sufficiently ambiguity averse. We show that traders' effective ambiguity aversion increases with the number of informed traders, resulting in a non-monotonic relation between the equity premium and the number of informed traders. In the information market, ambiguity about the number of informed traders emerges endogenously from a range of information acquisition costs.
{"title":"Ambiguity and information tradeoffs","authors":"Nihad Aliyev","doi":"10.1016/j.jedc.2025.105180","DOIUrl":"10.1016/j.jedc.2025.105180","url":null,"abstract":"<div><div>We model investors facing ambiguity about the number of informed traders and characterize equilibrium in both financial and information markets. In the financial market, this ambiguity generates a premium that can be positive or negative, depending on traders' ambiguity attitude. The premium always increases with ambiguity aversion but only increases with ambiguity level when traders are sufficiently ambiguity averse. We show that traders' effective ambiguity aversion increases with the number of informed traders, resulting in a non-monotonic relation between the equity premium and the number of informed traders. In the information market, ambiguity about the number of informed traders emerges endogenously from a range of information acquisition costs.</div></div>","PeriodicalId":48314,"journal":{"name":"Journal of Economic Dynamics & Control","volume":"179 ","pages":"Article 105180"},"PeriodicalIF":2.3,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145099747","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-10-01Epub Date: 2025-09-15DOI: 10.1016/j.jedc.2025.105179
Fudong Wang , Zhibin Liang , Yiying Zhang
This paper investigates Stackelberg equilibrium strategies between insurance demand and government interventions—ex ante premium subsidies and ex post disaster relief—in catastrophe risk management. We develop a continuous-time framework where policyholders' losses follow a compound Poisson process, integrating dual government mechanisms to analyze their interplay. By solving (extended) Hamilton-Jacobi-Bellman (HJB) equations, we derive equilibrium insurance strategies for policyholders under mean-variance preferences and optimize government expenditure policies. First, we demonstrate that subsidies and relief have opposing effects on risk retention: higher subsidies tend to reduce retention, whereas increased relief expectations incentivize retention due to anticipated post-disaster compensation. Specifically, within the framework of a linear relief function, we characterize the relative growth rate of the subsidy relative to the relief coefficient to ensure that the effect of the premium subsidy on the retention level either dominates or is dominated by the impact of the relief payment. Second, for risks exhibiting decreasing mean residual life (DMRL), we derive optimal subsidies in closed-form solutions under proportional or truncated relief structures, depending on disaster probability and relief trends. Third, we innovatively prove that the cost-minimizing relief function adopts a proportional form relative to pre-retention claims, aligning with empirical practices such as FEMA's aid caps. Fourth, extensions to scenarios with loss-increasing and ambiguous relief probabilities are explored within the policyholders' optimization framework, demonstrating robustness and consistency with static expected-utility results. Additionally, we analyze the government's optimal strategy when incorporating policyholders' welfare constraints and conduct a comprehensive social welfare assessment under various intervention scenarios. Our work advances policy design by quantifying the trade-offs between subsidies and relief, providing actionable insights for enhancing societal resilience. Governments can strategically balance interventions to stabilize insurance markets, mitigate fiscal exposure, and incentivize proactive risk management. This study bridges theoretical rigor with practical relevance under dynamic risk models, offering a comprehensive framework for optimizing public-private catastrophe risk-sharing mechanisms.
{"title":"Stackelberg equilibrium strategies between insurance demand and government interventions","authors":"Fudong Wang , Zhibin Liang , Yiying Zhang","doi":"10.1016/j.jedc.2025.105179","DOIUrl":"10.1016/j.jedc.2025.105179","url":null,"abstract":"<div><div>This paper investigates Stackelberg equilibrium strategies between insurance demand and government interventions—<em>ex ante</em> premium subsidies and <em>ex post</em> disaster relief—in catastrophe risk management. We develop a continuous-time framework where policyholders' losses follow a compound Poisson process, integrating dual government mechanisms to analyze their interplay. By solving (extended) Hamilton-Jacobi-Bellman (HJB) equations, we derive equilibrium insurance strategies for policyholders under mean-variance preferences and optimize government expenditure policies. First, we demonstrate that subsidies and relief have opposing effects on risk retention: higher subsidies tend to reduce retention, whereas increased relief expectations incentivize retention due to anticipated post-disaster compensation. Specifically, within the framework of a linear relief function, we characterize the relative growth rate of the subsidy relative to the relief coefficient to ensure that the effect of the premium subsidy on the retention level either dominates or is dominated by the impact of the relief payment. Second, for risks exhibiting decreasing mean residual life (DMRL), we derive optimal subsidies in closed-form solutions under proportional or truncated relief structures, depending on disaster probability and relief trends. Third, we innovatively prove that the cost-minimizing relief function adopts a proportional form relative to pre-retention claims, aligning with empirical practices such as FEMA's aid caps. Fourth, extensions to scenarios with loss-increasing and ambiguous relief probabilities are explored within the policyholders' optimization framework, demonstrating robustness and consistency with static expected-utility results. Additionally, we analyze the government's optimal strategy when incorporating policyholders' welfare constraints and conduct a comprehensive social welfare assessment under various intervention scenarios. Our work advances policy design by quantifying the trade-offs between subsidies and relief, providing actionable insights for enhancing societal resilience. Governments can strategically balance interventions to stabilize insurance markets, mitigate fiscal exposure, and incentivize proactive risk management. This study bridges theoretical rigor with practical relevance under dynamic risk models, offering a comprehensive framework for optimizing public-private catastrophe risk-sharing mechanisms.</div></div>","PeriodicalId":48314,"journal":{"name":"Journal of Economic Dynamics & Control","volume":"179 ","pages":"Article 105179"},"PeriodicalIF":2.3,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145099746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-10-01Epub Date: 2025-09-05DOI: 10.1016/j.jedc.2025.105177
Qiugu He , Xuan Luo , Fan Zheng
We document that a firm's research and development (R&D) expenditure depends on its product diversity. Combining with the fact that Chinese manufacturers often enter new product markets via technology adoption, we develop a quantitative framework of innovation and technology adoption, allowing firms to expand their product scopes. Firms adopt technologies across multiple fields to expand their knowledge base, which in turn serves as an input for subsequent innovation or adoption. Counterfactual analysis from the 2000s reveals that two-thirds of knowledge privately held by all firms is generated through adoption, accounting for one-third of aggregate innovation.
{"title":"Product technology adoption and aggregate innovation","authors":"Qiugu He , Xuan Luo , Fan Zheng","doi":"10.1016/j.jedc.2025.105177","DOIUrl":"10.1016/j.jedc.2025.105177","url":null,"abstract":"<div><div>We document that a firm's research and development (R&D) expenditure depends on its product diversity. Combining with the fact that Chinese manufacturers often enter new product markets via technology adoption, we develop a quantitative framework of innovation and technology adoption, allowing firms to expand their product scopes. Firms adopt technologies across multiple fields to expand their knowledge base, which in turn serves as an input for subsequent innovation or adoption. Counterfactual analysis from the 2000s reveals that two-thirds of knowledge privately held by all firms is generated through adoption, accounting for one-third of aggregate innovation.</div></div>","PeriodicalId":48314,"journal":{"name":"Journal of Economic Dynamics & Control","volume":"179 ","pages":"Article 105177"},"PeriodicalIF":2.3,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145019573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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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