Download or read book The Network Origins of Aggregate Fluctuations written by Daron Acemoglu and published by . This book was released on 2011 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper argues that in the presence of intersectoral input-output linkages, microeconomic idiosyncratic shocks may lead to aggregate fluctuations. In particular, it shows that, as the economy becomes more disaggregated, the rate at which aggregate volatility decays is determined by the structure of the network capturing such linkages. Our main results provide a characterization of this relationship in terms of the importance of different sectors as suppliers to their immediate customers as well as their role as indirect suppliers to chains of downstream sectors. Such higher-order interconnections capture the possibility of "cascade effects" whereby productivity shocks to a sector propagate not only to its immediate downstream customers, but also indirectly to the rest of the economy. Our results highlight that sizable aggregate volatility is obtained from sectoral idiosyncratic shocks only if there exists significant asymmetry in the roles that sectors play as suppliers to others, and that the "sparseness" of the input-output matrix is unrelated to the nature of aggregate fluctuations. Keywords: business cycle, aggregate volatility, diversification, input-output linkages, intersectoral network, cascades. JEL Classifications: C67, D57, E32.
Download or read book Price Rigidities and the Granular Origins of Aggregate Fluctuations written by Ernesto Pasten and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: We study the aggregate implications of sectoral shocks in a multi-sector New Keynesian model featuring sectoral heterogeneity in price stickiness, sector size, and input-output linkages. We calibrate a 341 sector version of the model to the United States. Both theoretically and empirically, sectoral heterogeneity in price rigidity (i) generates sizable GDP volatility from sectoral shocks, (ii) amplifies both the "granular" and the "network" effects, (iii) alters the identity and relative contributions of the most important sectors for aggregate fluctuations, (iv) can change the sign of fluctuations, (v) invalidates the Hulten Theorem, and (vi) generates a frictional origin of aggregate fluctuations.
Download or read book Dispersed Information and the Origins of Aggregate Fluctuations written by Jakob Grazzini and published by . This book was released on 2016 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the presence of dispersed information, agents may decide to take into account the actions of other agents because of the possible additional information conveyed by these actions. We call the act of using other agents' actions in the individual decision process social learning. This paper argues that social learning aimed at increasing the precision of individual information may lead to aggregate fluctuations. We consider a setting where firms receive independent noisy signals about a common fundamental and can observe other firms' actions through a network of informational links. We show that, when firms can observe each other's decisions, they are able to increase the accuracy of their actions. While reducing volatility at the individual level, social learning may lead to an increase in volatility at the aggregate level depending on the network topology. Moreover, if the network is very asymmetric, aggregate volatility does not decay as predicted by the law of large numbers.
Download or read book Essays on the Origins of Aggregate Fluctuations written by By Kai Yan and published by . This book was released on 2015 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Essays on Aggregate Fluctuations Network Dynamics and Statistical Regularities in Economics written by Alexander Hempfing and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Granular Origins of Macroeconomic Fluctuations in Europe written by Mr.Christian H Ebeke and published by International Monetary Fund. This book was released on 2017-11-07 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper investigates the microeconomic origins of aggregate economic fluctuations in Europe. It examines the relevance of idiosyncratic shocks at the top 100 large firms (the granular shocks) in explaining aggregate macroeconomic fluctuations. The paper also assesses the strength of spillovers from large firms onto SMEs. Using firm-level data covering over 14 million firms and eight european countries (Austria, Belgium, Finland, France, Germany, Italy, Portugal and Spain), we find that: (i) 40 percent of the variance in GDP in the sample can be explained by idiosyncratic shocks at large firms; (ii) positive granular shocks at large firms spill over to domestic SMEs’ output, especially if SMEs’ balance sheets are healthy and if SMEs belong to the services and manufacturing sectors.
Download or read book Heterogeneous Firms and the Micro Origins of Aggregate Fluctuations written by Glenn Magerman and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Idiosyncratic Shocks and Aggregate Fluctuations in an Emerging Market written by Mr. Francesco Grigoli and published by International Monetary Fund. This book was released on 2021-12-10 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper provides the first assessment of the contribution of idiosyncratic shocks to aggregate fluctuations in an emerging market using confidential data on the universe of Chilean firms. We find that idiosyncratic shocks account for more than 40 percent of the volatility of aggregate sales. Although quite large, this contribution is smaller than documented in previous studies based on advanced economies, despite a higher degree of market concentration in Chile.We show that this finding is explained by larger firms being less volatile and by weaker propagation effects across Chilean firms.
Download or read book The Oxford Handbook of the Economics of Networks written by Yann Bramoullé and published by Oxford University Press. This book was released on 2016-03-01 with total page 857 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Oxford Handbook of the Economics of Networks represents the frontier of research into how and why networks they form, how they influence behavior, how they help govern outcomes in an interactive world, and how they shape collective decision making, opinion formation, and diffusion dynamics. From a methodological perspective, the contributors to this volume devote attention to theory, field experiments, laboratory experiments, and econometrics. Theoretical work in network formation, games played on networks, repeated games, and the interaction between linking and behavior is synthesized. A number of chapters are devoted to studying social process mediated by networks. Topics here include opinion formation, diffusion of information and disease, and learning. There are also chapters devoted to financial contagion and systemic risk, motivated in part by the recent financial crises. Another section discusses communities, with applications including social trust, favor exchange, and social collateral; the importance of communities for migration patterns; and the role that networks and communities play in the labor market. A prominent role of networks, from an economic perspective, is that they mediate trade. Several chapters cover bilateral trade in networks, strategic intermediation, and the role of networks in international trade. Contributions discuss as well the role of networks for organizations. On the one hand, one chapter discusses the role of networks for the performance of organizations, while two other chapters discuss managing networks of consumers and pricing in the presence of network-based spillovers. Finally, the authors discuss the internet as a network with attention to the issue of net neutrality.
Download or read book The Oxford Handbook of the Economics of Networks written by Yann Bramoullé and published by Oxford University Press. This book was released on 2016 with total page 857 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Oxford Handbook of the Economics of Networks represents the frontier of research into how and why networks they form, how they influence behavior, how they help govern outcomes in an interactive world, and how they shape collective decision making, opinion formation, and diffusion dynamics. From a methodological perspective, the contributors to this volume devote attention to theory, field experiments, laboratory experiments, and econometrics. Theoretical work in network formation, games played on networks, repeated games, and the interaction between linking and behavior is synthesized. A number of chapters are devoted to studying social process mediated by networks. Topics here include opinion formation, diffusion of information and disease, and learning. There are also chapters devoted to financial contagion and systemic risk, motivated in part by the recent financial crises. Another section discusses communities, with applications including social trust, favor exchange, and social collateral; the importance of communities for migration patterns; and the role that networks and communities play in the labor market. A prominent role of networks, from an economic perspective, is that they mediate trade. Several chapters cover bilateral trade in networks, strategic intermediation, and the role of networks in international trade. Contributions discuss as well the role of networks for organizations. On the one hand, one chapter discusses the role of networks for the performance of organizations, while two other chapters discuss managing networks of consumers and pricing in the presence of network-based spillovers. Finally, the authors discuss the internet as a network with attention to the issue of net neutrality.
Download or read book Analyses of Aggregate Fluctuations of Firm Networks Based on the Self organized Criticality Model and Control Theory written by Hiroyasu Inoue and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monetary Policy Inflation and the Business Cycle written by Jordi Galí and published by Princeton University Press. This book was released on 2015-06-09 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: The classic introduction to the New Keynesian economic model This revised second edition of Monetary Policy, Inflation, and the Business Cycle provides a rigorous graduate-level introduction to the New Keynesian framework and its applications to monetary policy. The New Keynesian framework is the workhorse for the analysis of monetary policy and its implications for inflation, economic fluctuations, and welfare. A backbone of the new generation of medium-scale models under development at major central banks and international policy institutions, the framework provides the theoretical underpinnings for the price stability–oriented strategies adopted by most central banks in the industrialized world. Using a canonical version of the New Keynesian model as a reference, Jordi Galí explores various issues pertaining to monetary policy's design, including optimal monetary policy and the desirability of simple policy rules. He analyzes several extensions of the baseline model, allowing for cost-push shocks, nominal wage rigidities, and open economy factors. In each case, the effects on monetary policy are addressed, with emphasis on the desirability of inflation-targeting policies. New material includes the zero lower bound on nominal interest rates and an analysis of unemployment’s significance for monetary policy. The most up-to-date introduction to the New Keynesian framework available A single benchmark model used throughout New materials and exercises included An ideal resource for graduate students, researchers, and market analysts
Download or read book The Economics of Interfirm Networks written by Tsutomu Watanabe and published by Springer. This book was released on 2015-06-02 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is one of the first comprehensive works to fill the knowledge gap resulting from the limited number of empirical studies on interfirm networks. The in-depth empirical research presented here is based on a massive transaction relationship database of approximately 400,000 Japanese firms. This volume, unlike others, focuses on the role of interfirm networks in three different fields: (1) macroeconomic activities, (2) economic geography and firm dynamics, and (3) firm–bank relationships. The database for this work is constructed in collaboration with Japan's largest credit research company, Teikoku Data Bank, and covers a substantial portion of Japanese firms with information on firms' transaction partners, shareholders, financial institutions, and other attributes, including their locations and performance. Networks prevail in many aspects of economic activities and play a major role in explaining a wide variety of economic phenomena from business cycles to knowledge spillovers, which has motivated economists to produce a number of excellent works. In the policy arena, there has been a growing concern on the vulnerabilities of networks based on the casual observation that idiosyncratic shocks on firms can be amplified through inter-firm connections and leads to a systemic crisis. Typical examples are the manufacturing supply-chain networks in the automobile and electronics industries which propagated regionally concentrated shocks (the Great East Japan Earthquake and floods in Thailand in 2011) into global ones. An abundance of theoretical literature on the formation and functions of networks is available already. This book breaks new ground, however, and provides an excellent opportunity for the reader to gain a more integrated understanding of the role of networks in the economy. The Economics of Interfirm Networks will be of special interest to economists and practitioners seeking empirical and quantitative knowledge on interfirm and firm–bank networks.
Download or read book The Granular Origins of Macroeconomic Fluctuations in Europe written by Mr.Christian H Ebeke and published by International Monetary Fund. This book was released on 2017-11-07 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper investigates the microeconomic origins of aggregate economic fluctuations in Europe. It examines the relevance of idiosyncratic shocks at the top 100 large firms (the granular shocks) in explaining aggregate macroeconomic fluctuations. The paper also assesses the strength of spillovers from large firms onto SMEs. Using firm-level data covering over 14 million firms and eight european countries (Austria, Belgium, Finland, France, Germany, Italy, Portugal and Spain), we find that: (i) 40 percent of the variance in GDP in the sample can be explained by idiosyncratic shocks at large firms; (ii) positive granular shocks at large firms spill over to domestic SMEs’ output, especially if SMEs’ balance sheets are healthy and if SMEs belong to the services and manufacturing sectors.
Download or read book Economic Theory and its History written by Giuseppe Freni and published by Routledge. This book was released on 2016-01-29 with total page 447 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection brings together leading economists from around the world to explore key issues in economic analysis and the history of economic thought. This book deals with important themes in economics in terms of an approach that has its roots in the works of the classical economists from Adam Smith to David Ricardo. The chapters have been inspired by the work of Neri Salvadori, who has made key contributions in various areas including the theory of production, the theory of value and distribution, the theory of economic growth, as well as the theory of renewable and deplorable natural resources. The main themes in this book include production, value and distribution; endogenous economic growth; renewable and exhaustible natural resources; capital and profits; oligopolistic competition; effective demand and capacity utilization; financial regulation; and themes in the history of economic analysis. Several of the contributions are closely related to the works of Neri Salvadori. This is demonstrated with respect to important contemporary topics including the sources of economic growth, the role of exhaustible resources in economic development, the reduction and disposal of waste, the redistribution of income and wealth, and the regulation of an inherently unstable financial sector. All contributions are brand new, original and concise, written by leading exponents in their field of expertise. Together this volume represents an invaluable contribution to economic analysis and the history of economic thought. This book is suitable for those who study economic theory and its history, political economy as well as philosophy.
Download or read book Networks of Institutions written by Shuanping Dai and published by Routledge. This book was released on 2015-05-15 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: The questions such as, ‘why the focuses of national policies vary significantly across countries, although their sources of policies are to a great extent identical’; ‘why national development experiences mostly cannot be transplanted successfully among countries’; ‘why some ineffective institutions persist over long periods of time’, have attracted numerous efforts. This book provides a new perspective and argues that the answers lie in the existence of the networks of institutions and thus of national systems of policies (NSP) within national frameworks. Institutions are the equilibria of games and exist as rules of games. Therefore, a basic setting is that institutions emerge endogenously from a series of social interactions, and the interacting human agents are connected and interdependent at the overlapping interaction platforms. National policies and developmental strategies can be modelled in this approach too. The networks of institutions describe the dynamic connected structure among institutions in the process of social interactions over time. Regarding the national policies response to the recent economic crises, this book argues that the difference comes from the distinct understandings of the tags of the policies, which highly depend on the distinct national contexts, such as national interests, cultural background, political systems and so forth. This book represents a significant contribution to the literature which will be essential reading for those interested in institutional economics, network theory, social structures and economic policy. In particular, the approach of applying network game theory in institutional emergence, and the terms developed, i.e. tags of institutions, and national systems of policies, in this book, are illuminating and deserve more attention.
Download or read book Real Sectoral Spillovers A Dynamic Factor Analysis of the Great Recession written by MissNan Li and published by International Monetary Fund. This book was released on 2018-05-09 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper studies changes in the transmission of common versus sectoral idiosyncratic shocks across different U.S. nonfarm business sectors during the Great Recession, and evaluates the cross-sectoral spillovers. Shocks are identified by dynamic factor methods. We find that the Great Recession is largely a time of heightened impact of common shocks— which accounts for 3/4 of aggregate volatility—and large spillovers of negative financerelated shocks. Moreover, in contrast with the earlier literature that failed to find a significant role of sectoral shocks (propagated through the input-output linkages across sectors) in driving variability in aggregate industry output, this study allows spillovers of shocks to operate through other mechanisms intertemporally. We find that prior to the recession the majority of aggregate fluctuations is explained by sector-specific shocks.
