Price Rigidity


Book Description

The price adjustment process is crucial to almost any macroeconomic issue. Current macroeconomic literature features widely different models ranking from instantaneous price adjustment to completely rigid prices. Professor Andersen provides a comprehensive analysis of reasons why prices may fail to adjust instantaneously to changes in market conditions. This unified treatment will allow the reader to understand the mechanisms at work without becoming lost in technical details. This volume covers both real and nominal price rigidities and integrates existing results from the literature with new results on causes for failures of price adjustment. The analysis of real price rigidities includes inventories, customer markets, search and collusive behaviour. Due to the focus on macroeconomic implications, the analysis of nominal price rigidities is extensive and includes menu costs, informational problems, asynchronized price setting as well as the interaction between price and wage setting. Professor Andersen's own theoretical work on imperfect information, a prime source of price and wage rigidity, is given prominence in the book. The volume is thus a combination of a valuable survey of the literature, and an original expression of future possible research avenues.




Asking About Prices


Book Description

Why do consumer prices and wages adjust so slowly to changes in market conditions? The rigidity or stickiness of price setting in business is central to Keynesian economic theory and a key to understanding how monetary policy works, yet economists have made little headway in determining why it occurs. Asking About Prices offers a groundbreaking empirical approach to a puzzle for which theories abound but facts are scarce. Leading economist Alan Blinder, along with co-authors Elie Canetti, David Lebow, and Jeremy B. Rudd, interviewed a national, multi-industry sample of 200 CEOs, company heads, and other corporate price setters to test the validity of twelve prominent theories of price stickiness. Using everyday language and pertinent scenarios, the carefully designed survey asked decisionmakers how prominently these theoretical concerns entered into their own attitudes and thought processes. Do businesses tend to view the costs of changing prices as prohibitive? Do they worry that lower prices will be equated with poorer quality goods? Are firms more likely to try alternate strategies to changing prices, such as warehousing excess inventory or improving their quality of service? To what extent are prices held in place by contractual agreements, or by invisible handshakes? Asking About Prices offers a gold mine of previously unavailable information. It affirms the widespread presence of price stickiness in American industry, and offers the only available guide to such business details as what fraction of goods are sold by fixed price contract, how often transactions involve repeat customers, and how and when firms review their prices. Some results are surprising: contrary to popular wisdom, prices do not increase more easily than they decrease, and firms do not appear to practice anticipatory pricing, even when they can foresee cost increases. Asking About Prices also offers a chapter-by-chapter review of the survey findings for each of the twelve theories of price stickiness. The authors determine which theories are most popular with actual price setters, how practices vary within different business sectors, across firms of different sizes, and so on. They also direct economists' attention toward a rationale for price stickiness that does not stem from conventional theory, namely a strong reluctance by firms to antagonize or inconvenience their customers. By illuminating how company executives actually think about price setting, Asking About Prices provides an elegant model of a valuable new approach to conducting economic research.




Rigidity Theory and Applications


Book Description

Although rigidity has been studied since the time of Lagrange (1788) and Maxwell (1864), it is only in the last twenty-five years that it has begun to find applications in the basic sciences. The modern era starts with Laman (1970), who made the subject rigorous in two dimensions, followed by the development of computer algorithms that can test over a million sites in seconds and find the rigid regions, and the associated pivots, leading to many applications. This workshop was organized to bring together leading researchers studying the underlying theory, and to explore the various areas of science where applications of these ideas are being implemented.




In Search of Price Rigidities


Book Description







International Dimensions of Monetary Policy


Book Description

United States monetary policy has traditionally been modeled under the assumption that the domestic economy is immune to international factors and exogenous shocks. Such an assumption is increasingly unrealistic in the age of integrated capital markets, tightened links between national economies, and reduced trading costs. International Dimensions of Monetary Policy brings together fresh research to address the repercussions of the continuing evolution toward globalization for the conduct of monetary policy. In this comprehensive book, the authors examine the real and potential effects of increased openness and exposure to international economic dynamics from a variety of perspectives. Their findings reveal that central banks continue to influence decisively domestic economic outcomes—even inflation—suggesting that international factors may have a limited role in national performance. International Dimensions of Monetary Policy will lead the way in analyzing monetary policy measures in complex economies.




Imperfect Competition and Sticky Prices


Book Description

These two volumes bring together a set of important essays that represent a "new Keynesian" perspective in economics today. This recent work shows how the Keynesian approach to economic fluctuations can be supported by rigorous microeconomic models of economic behavior. The essays are grouped in seven parts that cover costly price adjustment, staggering of wages and prices, imperfect competition, coordination failures, and the markets for labor, credit, and goods. An overall introduction, brief introductions to each of the parts, and a bibliography of additional papers in the field round out this valuable collection.Volume 1 focuses on how friction in price setting at the microeconomic level leads to nominal rigidity at the macroeconomic level, and on the macroeconomic consequences of imperfect competition, including aggregate demand externalities and multipliers. Volume 2 addresses recent research on non-Walrasian features of the labor, credit, and goods markets. Contributors George A Akerlof, Costas Azariadis, Laurence Ball, Ben S. Bernanke, Mark Bits, Olivier J. Blanchard, Alan S. Blinder, John Bryant, Andrew S. Caplin, Dennis W. Carlton, Stephen G. Cecchetti, Russell Cooper, Peter A. Diamond, Gary Fethke, Stanley Fischer, Robert E. Hall, Oliver Hart, Andrew John, Nobuhiro Kiyotaki, Alan B. Krueger, David M. Lilien, Ian M. McDonald, N. David Mankiw, Arthur M. Okun, Andres Policano, David Romer, Julio J. Rotemberg, Garth Saloner, Carl Shapiro, Andrei Shleifer, Robert M. Solow, Daniel F. Spulber, Joseph E. Stiglitz, Lawrence H. Summers, John Taylor, Andrew Weiss, Michael Woodford, Janet L. Yellen




Combinatorial Rigidity


Book Description

This book presents rigidity theory in a historical context. The combinatorial aspects of rigidity are isolated and framed in terms of a special class of matroids, which are a natural generalization of the connectivity matroid of a graph. The book includes an introduction to matroid theory and an extensive study of planar rigidity. The final chapter is devoted to higher dimensional rigidity, highlighting the main open questions. Also included is an extensive annotated bibiolography with over 150 entries. The book is aimed at graduate students and researchers in graph theory and combinatorics or in fields which apply the structural aspects of these subjects in architecture and engineering. Accessible to those who have had an introduction to graph theory at the senior or graduate level, the book would be suitable for a graduate course in graph theory.




Interest and Prices


Book Description

With the collapse of the Bretton Woods system, any pretense of a connection of the world's currencies to any real commodity has been abandoned. Yet since the 1980s, most central banks have abandoned money-growth targets as practical guidelines for monetary policy as well. How then can pure "fiat" currencies be managed so as to create confidence in the stability of national units of account? Interest and Prices seeks to provide theoretical foundations for a rule-based approach to monetary policy suitable for a world of instant communications and ever more efficient financial markets. In such a world, effective monetary policy requires that central banks construct a conscious and articulate account of what they are doing. Michael Woodford reexamines the foundations of monetary economics, and shows how interest-rate policy can be used to achieve an inflation target in the absence of either commodity backing or control of a monetary aggregate. The book further shows how the tools of modern macroeconomic theory can be used to design an optimal inflation-targeting regime--one that balances stabilization goals with the pursuit of price stability in a way that is grounded in an explicit welfare analysis, and that takes account of the "New Classical" critique of traditional policy evaluation exercises. It thus argues that rule-based policymaking need not mean adherence to a rigid framework unrelated to stabilization objectives for the sake of credibility, while at the same time showing the advantages of rule-based over purely discretionary policymaking.




Rigid Flexibility


Book Description

This book is the most comprehensive description of the decades-long Non-Axiomatic Reasoning System (NARS) project, including its philosophical foundation, methodological consideration, conceptual design details, implications in the related fields, and its similarities and differences to many related works in cognitive science. While most current works in Artificial Intelligence (AI) focus on individual aspects of intelligence and cognition, NARS is designed and developed to attack the AI problem as a whole.