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This advanced textbook aims at providing a simple but fully operational introduction to applied general equilibrium. General equilibrium is the backbone of modern economic analysis and as such generation after generation of economics students are introduced to it. As an analytical tool in economics, general equilibrium provides one of the most complete views of an economy since it incorporates all economic agents (households, firms, government, foreign sector) in an integrated way that is compatible with microtheory and microdata. The integration of theory and data handling is required for successful modeling but it requires a double ability that is not found in standard books. With this book we aim at filling the gap and provide advanced students with the required tools, from the building of consistent and applicable general equilibrium models to the interpretation of the results that ensue from the adoption of policies. The topics include: model design, model development, computer code examples, calibration and data adjustments, practical policy examples.
"General-equilibrium" refers to an analytical approach which looks at the economy as a complete system of inter-dependent components (industries, households, investors, governments, importers and exporters). "Applied" means that the primary interest is in systems that can be used to provide quantitative analysis of economic policy problems in particular countries. Reflecting the authors' belief in the models as vehicles for practical policy analysis, a considerable amount of material on data and solution techniques as well as on theoretical structures has been included. The sequence of chapters follows what is seen as the historical development of the subject. The book is directed at graduate students and professional economists who may have an interest in constructing or applying general equilibrium models. The exercises and readings in the book provide a comprehensive introduction to applied general equilibrium modeling. To enable the reader to acquire hands-on experience with computer implementations of the models which are described in the book, a companion set of diskettes is available.
This book reports the authors' research on one of the most sophisticated general equilibrium models designed for tax policy analysis. Significantly disaggregated and incorporating the complete array of federal, state, and local taxes, the model represents the U.S. economy and tax system in a large computer package. The authors consider modifications of the tax system, including those being raised in current policy debates, such as consumption-based taxes and integration of the corporate and personal income tax systems. A counterfactual economy associated with each of these alternatives is generated, and the possible outcomes are compared.
This dissertation focuses on the consequences of labor market policies, environmental cap-and-trade policies, and monetary policy. These three types of economic policies are admittedly very distinct, but they are tied together by the type of analysis I employ to study these policies. For each, I develop a specific general equilibrium model aimed at highlighting the policy in question and use cutting-edge computational methods to numerically solve the model across an array of potential policies. In the first chapter, The Distributional Effects of Labor Adjustment Cost Policies, I introduce a general equilibrium model with heterogeneous plants and labor adjustment costs to explore both the aggregate and distributional effects of labor adjustment costs. I use the model to analyze the effects of policies that would repeal all or half of state-mandated firing costs in European countries. The model predicts that a full repeal of state-mandated firing costs in the average European country would increase aggregate labor productivity by 0.7%-6.2% while increasing the rate of job turnover by 65%-420%. In the second chapter, Emissions Allowance Allocation in Cap-and-Trade Policies, I present a version of "Impacts of Alternative Emissions Allowance Allocation Methods Under a Federal Cap-and-Trade Program", co-written with Lawrence H. Goulder and Michael Dworsky, published in the Journal of Environmental Economics and Management, Volume 60, Issue 3, November 2010, pages 161-181. To examine the implications of alternative allowance allocation designs for industry profits and GDP under a federal cap-and-trade program to reduce greenhouse gas emissions, we employ a general equilibrium model of the U.S. economy with a unique treatment of capital dynamics that permits close attention to profit impacts. Effects on profits depend critically on the relative reliance on auctioning or free allocation of allowances. Freely allocating fewer than 15\% of the emissions allowances generally suffices to prevent profit losses in the most vulnerable U.S. industries. Freely allocating all of the allowances substantially overcompensates these industries. When emissions allowances are auctioned and the proceeds are employed to finance cuts in income tax rates, GDP costs are about 33 percent lower than when all the allowances are freely allocated. The results are robust to policies differing in stringency, the availability of offsets, and the opportunities for intertemporal trading of allowances. In the final chapter, I present \textit{Interbank Lending and Monetary Policy in a DSGE Model}, which was written with Josephine Smith. We build a DSGE model with heterogeneous banks and interbank lending to explore how monetary policy should respond to shocks in the interbank lending market. To do this, we build upon the Bernanke, Gertler, and Gilchrist \citeyear{bgg1999} model of the financial accelerator by introducing a monopolistically competitive banking sector. The model is the first of its kind to include a monopolistically competitive banking sector, heterogeneous banks, and an interbank lending market. We find that the heterogeneous monopolistically competitive banking sector mitigates macroeconomic variance in the model relative to a perfectly competitive banking sector. Multiple banks that imperfectly compete with each other can help absorb shocks better than a single representative bank and mitigate the financial accelerator effect. We also find that financial supply side shocks, as measured by shocks to the productivity of bank loan production, have a much greater effect on the real economy than the demand-side financial shocks. In addition, we find that shocks to the ex-ante most productive banks have a larger effect on the real economy than shocks to the ex-ante least productive banks because the banks with high productivity (ex-ante) have a larger share of the financial market. Analyzing the effect of shocks to interbank lending rates (relative to the central bank policy rate), we find large macroeconomic effects of such policies. Finally, we find that a monetary policy interest rate rule that incorporates the financial sector can actually dampen the effects of traditional non-financial shocks such as productivity, government spending, and monetary policy shocks and leads to a significant decrease in business-cycle volatility.
The authors' model is the first large-scale computer simulation of the effects of changes in U.S. import quotas.
This book covers some important topics in the construction of computable general equilibrium (CGE) models and examines use of these models for the analysis of economic policies, their properties, and their implications. Readers will find explanation and discussion of the theoretical structure and practical application of several model typologies, including dynamic, stochastic, micro-macro, and simulation models, as well as different closure rules and policy experiments. The presentation of applications to various country and problem-specific case studies serves to provide an informed and clearly articulated summary of the state of the art and the most important methodological advancements in the field of policy modeling within the framework of general equilibrium analysis. The book is an outcome of a recent workshop of the Italian Development Economists Association attended by a group of leading practitioners involved in the generation of CGE models and research on modeling the economy and policy making. It will be of interest to researchers, professional economists, graduate students, and knowledgeable policy makers.
This book addresses major issues such as a growing world energy demand, environmental degradation due to anthropogenic greenhouse gas (GHG) emission, and risk management of disastrous events such as pandemics, abnormal climate, and earthquakes. Using cutting-edge analytical tools, particularly computable general equilibrium (CGE) modelling, the analyses are focused on a very wide range of policy-relevant economic questions for the Asia-Pacific region, especially for Japan, China, India, Vietnam, and smaller nations, including Brunei, Timor Leste, and Fiji. The first part considers (a) the effects of climate change on agriculture sectors, energy policies, and future GHG emission trends, (b) adaptation to climate changes in energy policy and its impacts on the economies, and (c) risk management of catastrophic events such as global pandemics. The second part examines (a) energy environmental issues, (b) economic impacts of natural disaster and depopulation, and (c) effects of informatics development on risk management, using CGE modelling and other methods in regional science fields. Contributors are internationally active leading CGE modellers and environmental economists. The book should be greatly beneficial for scholars and graduate students as well as policy makers who are interested in the economic effects and management of risks relating to climate change and disastrous events.
Policies affecting resource allocation across tradable sectors and those affecting the incentives to produce tradable activities are key determinants of macroeconomic balance and growth. Computable general equilibrium models have made significant contributions to both types of policies. With advancements in computing power and software, these models have become easy to implement and are now widespread. The question then is when and how to formulate them to avoid the ‘black box’ syndrome.This book seeks to address these issues through carefully selected essays that analyse how to model general equilibrium linkages in a single economy, across developing and developed economies, and across both micro and macro policies. Micro policies examined include tariffs quotas and VERs, the choice of taxes to maximize government revenue, migration and remittances, and the political economy of tariff setting. Applications on macro policies cover capital inflows, real exchange rate determination, and the modeling of the effects of adjustment policies on income distribution.The book provides insights on the development of a family of models for diverse policy choices, focusing on the ways to model the following: links between tradable and non-tradable activities, labor markets, and portfolio choices given limited capital mobility. Selected essays are all inspired by specific policy problems, including the adaptation to external shocks (i.e. oil), consequences of capital inflows, determinants of migration and associated remittances, the productivity of foreign aid, and rent-seeking activities under trade regimes with non-price trade restrictions. Examples in this book lay out the theoretical foundations, alongside a variety of applications, to help formulate coherent and transparent models for policy analysis. Archetype economies are extensively used to show how differences in economic structure influence the effects of policies. Graduate students and policy analysts interested in modeling will find this a useful compendium of studies.
Intends to present the developments in the methodology and practice of CGE techniques as they apply to various issues in international trade policy. This title is suitable for academic researchers working in trade policy analysis and applied general equilibrium, and advanced graduate students in international economics.
This collection of essays applies modern micro-founded macroeconomic models to some of the most important economic policy questions facing monetary and macroeconomic policymakers. Key issues surveyed include: consumption investment; growth and business cycles; the role of government; asset pricing; the interaction of monetary and fiscal policy; open-economy issues; stabilization policy and general equilibrium analysis of emerging market crises. The book includes specially commissioned chapters from recognized authorities.