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Assessing impacts of Common Agricultural Policy changes on regional land use

Borjes, P.J; Fragoso, R.; Garcia-Gonzalo, J.; Borges, J.G.; Marques, S.; Lucas, M.R.
Fonte: Elsevier Publicador: Elsevier
Tipo: Artigo de Revista Científica
Português
Relevância na Pesquisa
46.12%
This paper discusses research aiming at assessing Common Agricultural Policy impacts on agriculture and forestry. For this purpose an approach is developed that includes a linear programming model to estimate the Positive Mathematical Programming production cost function coefficients of current agricultural– forestry activities. It further includes a heuristic — simulated annealing — to generate solutions for each policy scenario. This model base approach is integrated within a decision support system (DSS) for testing purposes. The DSS further encompasses a relational database that stores agricultural–forestry technical and economic data and a geographic information system that stores topological data of regional farm-type land units. The DSS Graphical User Interface provides tabular and geographical reporting capabilities. Results are discussed for an application to the Alentejo region in Southern Portugal. Results demonstrate the usefulness and relevance of the proposed approach to assess the impact of changes in prices and in agricultural policy on land use patterns and on forestry.

A SAM (Social Accounting Matrix) approach to the policy decision process

Santos, Susana
Fonte: ISEG - Departamento de Economia Publicador: ISEG - Departamento de Economia
Tipo: Outros
Publicado em //2012 Português
Relevância na Pesquisa
46.01%
Policy analysis and policy making are parts of the policy decision process for which working tools are needed. A Social Accounting Matrix (SAM) consistent with the national accounts is presented at the level of a country, as a possible working tool intended to support that process. Such a framework will therefore consist of a SAM-based approach. On the one hand, it will involve the presentation of a numerical version of a SAM, constructed from national accounts adapted to the System of National Accounts (SNA). This numerical version will be shown as a device that makes it possible to take a snapshot of the reality under study. On the other hand, it will also involve the presentation of two algebraic versions, with which alternative scenarios will be defined for the measurement of policy impacts. One version will consist of accounting multipliers, and the other version will be a so-called master model. In the latter each cell will be defined with a linear equation or system of equations, whose components will be all the known and quantified transactions of the SNA, using the parameters deduced from the numerical SAM that served as the basis for this model. The national accounts will be adopted as the main source of information. The nominal flows that are representative of that part of a society’s activity that is measured by these accounts will be used to measure the network of linkages and interactions involving institutional sectors...

A SAM (Social Accounting Matrix) approach to the Policy decision process

Santos, Susana
Fonte: ISEG - Departamento de Economia Publicador: ISEG - Departamento de Economia
Tipo: Outros
Publicado em //2012 Português
Relevância na Pesquisa
46.01%
Policy analysis and policy making are parts of the policy decision process for which working tools are needed. A Social Accounting Matrix (SAM) consistent with the national accounts is presented at the level of a country, as a possible working tool intended to support that process. Such a framework will therefore consist of a SAM-based approach. On the one hand, it will involve the presentation of a numerical version of a SAM, constructed from national accounts adapted to the System of National Accounts (SNA). This numerical version will be shown as a device that makes it possible to take a snapshot of the reality under study. On the other hand, it will also involve the presentation of two algebraic versions, with which alternative scenarios will be defined for the measurement of policy impacts. One version will consist of accounting multipliers, and the other version will be a so-called master model. In the latter each cell will be defined with a linear equation or system of equations, whose components will be all the known and quantified transactions of the SNA, using the parameters deduced from the numerical SAM that served as the basis for this model. The national accounts will be adopted as the main source of information. The nominal flows that are representative of that part of a society’s activity that is measured by these accounts will be used to measure the network of linkages and interactions involving institutional sectors...

Assessing impacts of Common Agricultural Policy changes on regional use patterns with a decision support system. An application in Southern Portugal

Borges, P.J.; Fragoso, R.; Borges, J.G.; Marques, S.A.; Lucas, M.R.
Fonte: Elsevier Publicador: Elsevier
Tipo: Artigo de Revista Científica
Publicado em //2010 Português
Relevância na Pesquisa
46.12%
This paper discusses research aiming at assessing Common Agricultural Policy impacts on agriculture and forestry. For this purpose an approach is developed that includes a linear programming model to estimate the Positive Mathematical Programming production cost function coefficients of current agricultural– forestry activities. It further includes a heuristic — simulated annealing — to generate solutions for each policy scenario. This model base approach is integrated within a decision support system (DSS) for testing purposes. The DSS further encompasses a relational database that stores agricultural–forestry technical and economic data and a geographic information system that stores topological data of regional farm-type land units. The DSS Graphical User Interface provides tabular and geographical reporting capabilities. Results are discussed for an application to the Alentejo region in Southern Portugal. Results demonstrate the usefulness and relevance of the proposed approach to assess the impact of changes in prices and in agricultural policy on land use patterns and on forestry

A computable general equilibrium model to analyze distributive aspects in Brazil with a trade policy illustration

Cury,Samir; Coelho,Allexandro Mori; Corseuil,Carlos Henrique
Fonte: Fundação Instituto de Pesquisas Econômicas - FIPE Publicador: Fundação Instituto de Pesquisas Econômicas - FIPE
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/12/2005 Português
Relevância na Pesquisa
46.06%
This paper presents a Computable General Equilibrium model specified to simulate the policy impacts on income distribution in Brazil, with complex and systemic propagation methods. To capture the distributive impacts, the model adopts a design focused on the separation of production and institutional factors, as labor and households. The model has three blocks: product and factor markets, and a block that handles with income transfers among institutions. The labor market specification incorporates a recent theoretical advance that allows the determination of involuntary unemployment in the equilibrium. The third block specifies the distribution of the value added among production factors and the redistribution of income among agents/institutions. The simulations of a partial economic "closure" show modest welfare reduction for most workers and families. Also, we checked that the homogeneity property of the model holds only with full indexation of all income transfers, which has important implications for the income distribution process modeling.

Quantifying technology infusion and policy impact on low earth orbit communication satellite constellations

Chang, Darren Datong, 1977-
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 204 p.; 10443811 bytes; 10468706 bytes; application/pdf; application/pdf
Português
Relevância na Pesquisa
46.19%
Technology infusion and policy implementation bring impacts to the trade space of complex engineering systems. This work describes in detail the frameworks for quantitative analyses on these impacts, demonstrates their use on the sample system, and presents the analysis results. The low earth orbit (LEO) communication satellite constellation system serves as the platform for carrying out the system trade space analysis. The system is reproduced in computer environment in the form of a multiple-input-output MATLAB model. The model contains multiple modules that incorporate the physics, economy, and policies of the real-world system. The inputs to the model are system design variables and the outputs are system performance, capacity, and cost. The Pareto optimal solution set of the baseline trade space is generated by the model using a full-factorial run that covers the entire design space. To simulate technology infusion, technical and cost attributes of four new technologies are quantified and infused into the system model. The infusion of technologies and combinations of technologies into the system is simulated. Policy implementation is simulated by changing the policy constraints in the model. The technology-infused trade space and policy-implemented trade space have new sets of Pareto optimal solutions. By comparing these solution sets with the baseline optimal solution set in the objective space...

Strategies for mitigating adverse environmental impacts due to structural building materials

Chaturvedi, Swati, 1976-
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 93 leaves; 5486898 bytes; 5486705 bytes; application/pdf; application/pdf
Português
Relevância na Pesquisa
46.31%
This thesis assesses the problem of adverse environmental impacts due to the use of Portland cement and structural steel in the construction industry. The thesis outlines three technology and policy strategies to mitigate these impacts: 1. Reduce consumption; 2. Select materials to minimize impacts; and 3. Explore alternative new materials that have lesser impacts. The main findings and recommendations in each of these areas are as follows: Reduce Consumption: While absolute consumption of materials will grow with a growing population, recycling and reuse of structural members can reduce use of virgin material. Since recycling is already widely practiced, reuse of structural members is the primary means of further reducing consumption. Barriers to reuse can be eliminated by establishing design standards and regulations for reuse of structural sections, and creating functioning markets for re-useable sections. Select materials to minimize impacts: While designers are keen to select materials with minimum impacts, they do not have appropriate education or tools for the purpose. Standardization and simplification of Life Cycle Assessment (LCA) tools, and education of designers are identified as the main areas for improvement. The main recommendations are: i) standardize LCA tools; reduce the number of impact categories...

Combinations of policy measures with a high potential for reducing the fuel consumption of the U.S. light-duty vehicle fleet

Bandivadekar, Anup P
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 82 p.; 4578772 bytes; 4578577 bytes; application/pdf; application/pdf
Português
Relevância na Pesquisa
46.03%
Fuel consumption of cars and light-duty trucks is one of the most vigorously debated issues in the U.S. While impressive gains have been made in terms of both fuel efficiency and individual vehicle fuel economy in the past two decades, the overall fuel consumption of the U.S. light-duty vehicle fleet continues to grow. Although concerns about the effect of emissions from the vehicles and a significant reliance on imported oil provide legitimate reasons for government action to manage fuel consumption, the economic and societal impacts of such intervention assume multiple dimensions. This research finds that there exists no silver bullet for reducing the fuel consumption of motor vehicles in the U.S. However, there are several different policy measures available to affect the production and purchase of more fuel efficient vehicles as well as reduce the amount of driving. Qualitative and quantitative analysis of individual of policy options reveals the potential for combination of policies. A fleet model helps understand the time delay between the introduction of new fuel efficient vehicles and the reduction in fuel consumption of the fleet. Analysis of political and institutional obstacles enables an evaluation of the feasibility of a comprehensive policy package. A reinforcing combination of different policies can increase the overall effectiveness of the proposed strategy. Such an approach aims at exploiting synergies between different measures...

Bringing policy into space systems conceptual design : qualitative and quantitative methods

Weigel, Annalisa L. (Annalisa Lynn), 1972-
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 168 p.; 15537090 bytes; 15536849 bytes; application/pdf; application/pdf
Português
Relevância na Pesquisa
46.08%
A change in government policy can send waves of crippling impacts through the design and development of publicly funded complex engineering systems. Thus it is important for system architects and designers to understand the interaction of policy with their systems, and to strive for policy robustness in their systems. To be policy robust is to successfully pass through policy changes that might arise during the course of system development in order to bring the system into operational use. The goal of this thesis research is to enable the creation of policy robust system architectures and designs through making policy an active consideration in the engineering systems architecting and design process. Qualitative and quantitative analysis methods are brought to bear on the problem using space systems as the application domain, and a process is set down through which policy can become an active consideration instead of a static constraint. Unique contributions of this thesis in the qualitative analysis of policy robust systems include new heuristics describing the interaction of policy and publicly funded engineering systems, as well as impact flow path diagrams for tracing policy interactions with technical engineering system parameters. Quantitative contributions include general relationships for the behavior of engineering system architecture sets under downward annual budget policy pressure...

Managing the transition toward self-sustaining alternative fuel vehicle markets : policy analysis using a dynamic behavioral spatial model

Supple, Derek R. (Derek Richard)
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 97 p.
Português
Relevância na Pesquisa
46.05%
Designing public policy or industry strategy to bolster the transition to alternative fuel vehicles (AFVs) is a formidable challenge as demonstrated by historical failed attempts. The transition to new fuels occurs within a dynamically complex system with many distributed actors, long time delays, several important feedback relationships, and multiple tipping points. A broad-boundary, behavioral, dynamic model with explicit spatial structure was previously developed to represent the most important AFV transition barriers. Using California as an illustrative testing region, the model simulates the spatial diffusion of entrant vehicle/fuel technology pairs individually or in competition with other entrants. In this work, the integrated model is carefully parameterized for various specific alternative vehicle technologies. Structural and parametric sensitivity analyses are used to build understanding of system behavior and to identify policy leverage points or the need for further model calibration.; (cont.) The qualitative impacts of policies are tested individually and then in multi-policy combinations to find synergies. Under plausible assumptions and strong policies, AFVs can achieve successful diffusion but this process requires long time periods. Findings indicate some commonly suggested policies may provide little leverage and be very costly. The analysis reveals the importance of designing policy cognizant of the system structure underlying its dynamic behavior. Several examples demonstrate how policy leverage varies with context such as key attributes of the alternative vehicle technology. Broadly...

Tools for Institutional, Political, and Social Analysis of Policy Reform : A Sourcebook for Development Practitioners

World Bank
Fonte: Washington, DC: World Bank Publicador: Washington, DC: World Bank
Português
Relevância na Pesquisa
46.47%
This Sourcebook deals with social analysis in policy reform, encompassing the transition from gaining a better understanding of the distributional impacts of proposed or continuing reform to influencing a more informed and locally embedded process of policy review and design. In a generic sense, the term "social analysis" encompasses institutional, political, and social analyses. These three overlapping areas, derived from different disciplinary backgrounds, focus on the rules and relations that underpin and influence reform outcomes: Institutional analysis looks at the rules that people develop to govern group behavior and interaction in political, economic, and social spheres of life. Institutional analysis is based on an understanding that these rules-whether formally constructed or informally embedded in cultural practice-mediate and distort, sometimes fundamentally, the expected impacts of policy reform. Political analysis looks at the structure of power relations and often-entrenched interests of different stakeholders that affect decision making and distributional outcomes. Political analysis is built on recognition that political interests underpin many areas of policy debate and economic reform...

Economy-Wide Implications of Direct and Indirect Policy Interventions in the Water Sector : Lessons from Recent Work and Future Research Needs

Dinar, Ariel
Fonte: World Bank, Washington, DC Publicador: World Bank, Washington, DC
Português
Relevância na Pesquisa
46.31%
Water is increasingly becoming a limiting factor for sustainable economic growth and development in many countries. Its allocation has significant impacts on overall economic efficiency, particularly with growing physical scarcity in certain regions. Greater water supply variability further increases vulnerability in affected regions. Water also has become a strategic resource involving conflicts among those who may be affected differently by various policies. This paper analyzes various policy interventions aimed at improving water allocation decisions, using a novel approach that incorporates macro and micro level considerations in a unified analytical framework. The framework facilitates assessment of various linkages among policies and their impacts within individual sectors and economy-wide. Drawing on country based studies in Morocco, South Africa, Turkey, and Mexico, the analysis reveals difficult tradeoffs among various policy objectives, including priorities placed on different sectors, regional advantages, and general economic efficiency gains versus broader social impacts. The comparison of policy impacts demonstrates the usefulness of the framework in information that policy makers can use to rank the policy interventions according to the emphasis placed on different policy objectives. The paper also compares approaches used in other studies that apply computable general equilibrium models in various contexts of water...

Farm-Household Investment Behaviour and the CAP decoupling: Methodological Issues in Assessing Policy Impacts

VIAGGI Davide; RAGGI Meri; GOMEZ Y PALOMA Sergio
Fonte: ELSEVIER SCIENCE INC Publicador: ELSEVIER SCIENCE INC
Tipo: Articles in Journals Formato: Online
Português
Relevância na Pesquisa
46.06%
The objective of this paper is to compare and discuss the role of farm-household surveys and farm-household models in assessing the impact of the Common Agricultural Policy reforms, focusing in particular on the effects of 2003 decoupling on farm investment behaviour. The paper compares two specific approaches: (i) in-depth face-to-face interviews with farm-householders and (ii) mathematical programming models of individual farm-households. The effects of decoupling estimated by these two approaches coincide in a majority of cases, while the differences suggest relevant complementarities. Altogether the paper suggests a wider scope for using mixed methodologies in assessing CAP policy impacts.; JRC.DDG.J.5-Agriculture and Life Sciences in the Economy

Policy impacts on regulating ecosystem services: looking at the implications of 60 years of landscape change on soil erosion prevention in a Mediterranean silvo-pastoral system

Guerra, C.A.; Metzger, M.J.; Maes, J.; Pinto-Correia, T.
Fonte: Policy impacts on regulating ecosystem services: looking at the implications of 60 years of landscape change on soil erosion prevention in a Mediterranean silvo-pastoral system Publicador: Policy impacts on regulating ecosystem services: looking at the implications of 60 years of landscape change on soil erosion prevention in a Mediterranean silvo-pastoral system
Tipo: Artigo de Revista Científica
Português
Relevância na Pesquisa
66.16%
Context Policy decisions form a major driver of land use change, with important implications for socially and environmentally susceptible regions. It is well known that there can be major unintended consequences, especially where policies are not tailored to regionally specific contexts. Objectives In this paper we assess the implications of 60 years of agricultural policies on soil erosion prevention (SEP) by vegetation, an essential regulating ecosystem service in Mediterranean Europe. Objectives In this paper we assess the implications of 60 years of agricultural policies on soil erosion prevention (SEP) by vegetation, an essential regulating ecosystem service in Mediterranean Europe. Methods To assess these implications we produced and analysed a time series of land cover/use and environmental conditions datasets (from 1951 to 2012) in relation to changing agricultural policies for a specific region in the southern Portugal. Set of indicators related to SEP allowed us to identify that land use intensification as increased soil erosion in the last 60 years. Results Particularly in the last 35 years, as a consequence of head age payments for cattle, the agricultural policy had a significant effect in the density and renewal of the tree cover...

The Political Economy of Policy Reform : Issues and Implications for Policy Dialogue and Development Operations

World Bank
Fonte: Washington, DC Publicador: Washington, DC
Tipo: Economic & Sector Work :: Social Analysis; Economic & Sector Work
Português
Relevância na Pesquisa
46.39%
This study addresses the political economy of sector reforms. Sustainable reform processes which improve equity, efficiency and effectiveness in key economic and social sectors are often important elements of national poverty reduction strategies in low- and middle-income countries. For international development agencies wishing to engage in these processes, understanding the significance of power relations within the sector, vested interests, and the links to national political processes can be critical to being an effective actor in policy dialogue. This study explores these issues through the analysis of case studies of World Bank engagement in two areas: agricultural liberalization, and public-private partnerships in water supply and sanitation. The objectives of the study are twofold: (a) to analyze the political economy of reform by looking at stakeholder interests, incentives, institutions, risks, opportunities, and processes from a social analysis perspective; and (b) to illustrate 'what works...

Compras governamentais e aprendizagem tecnologica : uma analise da politica de compras da Petrobras para seus empreendimentos offshore; Government procurement and technological learning : an analysis of Petrobras procurement policy in offshore projects

Cassio Garcia Ribeiro Soares da Silva
Fonte: Biblioteca Digital da Unicamp Publicador: Biblioteca Digital da Unicamp
Tipo: Dissertação de Mestrado Formato: application/pdf
Publicado em 20/08/2009 Português
Relevância na Pesquisa
46.01%
A Petrobras é uma das maiores companhias de petróleo do mundo, com uma carteira de investimentos portentosa, especialmente em atividades de exploração e produção de petróleo e gás natural nas bacias marítimas brasileiras. Além disso, essa empresa ligada ao governo do país realizará investimentos de grande monta nos próximos anos para viabilizar a produção nos campos localizados no pré-sal, sua nova fronteira exploratória. Nesse contexto, salta à vista a importância de um estudo que vise investigar o impacto da massa de investimentos da Petrobrás sobre a indústria brasileira. Esse é justamente o objetivo desta tese, isto é, trazer elementos que contribuam para a compreensão dos impactos da política de compras da operadora nacional, sobretudo em termos de aprendizagem tecnológica. Para tanto, inicialmente é apresentada uma revisão bibliográfica que se apóia em trabalhos sobre o tema política de compras governamentais, enfocando uma modalidade especial de encomenda do setor público, aqui denominada de compra governamental de cunho inovativo. Em seguida, analisa-se a questão da aprendizagem tecnológica, com ênfase na abordagem que os estudiosos dos países de industrialização recente dão ao tema, assim como...

Driving segments analysis for energy and environmental impacts of worsening traffic

Feng, Wen, Ph. D. Massachusetts Institute of Technology
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 185 p.
Português
Relevância na Pesquisa
46.26%
During the last two decades, traffic congestion in the U.S. has increased from 30% to 67% of peak period travel. Further, current research shows that measures taken within transportation systems, such as adding capacity, improving operations and managing demand, are not enough to keep congestion from growing worse. With the worsening traffic, the vehicle's fuel consumption and pollutant emissions will inevitably increase. As such, this thesis aims to quantitatively evaluate the energy and environmental impacts of worsening traffic on individual vehicles and the U.S. light-duty vehicle fleet, as well as to design feasible measures beyond transportation systems to offset theses impacts. The fuel consumption and emissions of different vehicle types under different driving situations provide the basis for analyzing the energy and environmental impacts of worsening traffic. This thesis defines the concept of "driving segments" to represent all possible driving situations which consist of vehicle speed, operation patterns and road types. For each vehicle type, its fuel consumption and emissions in different "driving segments" can be developed into a matrix by ADVISOR 2004, the vehicle simulation tool. Combining the "driving segments" vehicle performance matrices with the model for traffic congestion...

Uncertainty and learning in sequential decision-making : the case of climate policy

Webster, Mort David
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 240 p.; 21779590 bytes; 21779345 bytes; application/pdf; application/pdf
Português
Relevância na Pesquisa
46.02%
The debate over a policy response to global climate change has been and continues to be deadlocked between 1) the view that the impacts of climate change are too uncertain and so any policy response should be delayed until we learn more, and 2) the view that we cannot wait to resolve the uncertainty because climate change is irreversible so we must take precautionary measures now. The objective of this dissertation is to sort out the role of waiting for better information in choosing an appropriate level of emissions abatement activities today under uncertainty. In this dissertation, we construct two-period sequential decision models to represent the choice of a level of emissions abatement over the next decade and another choice for the remainder of this century, both empirical models based on a climate model of intermediate complexity, and analytical dynamic programming models. Using the analytical models, we will show that for learning to have an influence on the decision before the learning occurs, an interaction must be present between strategies in the two decision periods. We define an "interaction" as the dependence of the marginal cost or marginal damage of the future decision on today's decision. When an interaction is present and is uncertain...

Health impacts from urban air pollution in China : the burden to the economy and the benefits of policy

Matus, Kira J. (Kira Jen)
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 100 p.; 4659664 bytes; 4665030 bytes; application/pdf; application/pdf
Português
Relevância na Pesquisa
46.32%
In China, elevated levels of urban air pollution result in significant adverse health impacts for its large and rapidly growing urban population. An expanded version of the Emissions Prediction and Policy Analysis (EPPA), EPPA Health Effects China (EPPA-HEC), was used to evaluate air pollution-related health impacts on the Chinese economy. EPPA-HEC, a computable general equilibrium model, was expanded to endogenously estimate the economy- wide impacts of air pollution. The effects of particulate matter (PM 10), sulfur dioxide (S02) and nitrogen oxides (NOx) were evaluated for 1970 to 2000, based on a set of epidemiological estimates of the effects of exposure to these pollutants. The estimated GDP impact to the Chinese economy of pollution levels above the WHO's recommended thresholds (ambient levels) increased from $15 ($23) billion in 1970 to $50 ($79) billion in 2000 (1997 $USD), despite improvements in overall air quality. This increase was caused by the growing urban population and rising wages that thus increased the value of lost labor and leisure. The benefit Damages as a percent of GDP decreased from a peak of 16% (10%) in 1975 to 7% (4%) in 2000 because the total size of the economy grew much more rapidly than the absolute air pollution damages. Forward simulations considered a cap on pollution...

A computable general equilibrium model to analyze distributive aspects in Brazil with a trade policy illustration

Cury, Samir; Coelho, Allexandro Mori; Corseuil, Carlos Henrique
Fonte: Universidade de São Paulo. Faculdade de Economia, Administração e Contabilidade Publicador: Universidade de São Paulo. Faculdade de Economia, Administração e Contabilidade
Tipo: info:eu-repo/semantics/article; info:eu-repo/semantics/publishedVersion; Formato: application/pdf
Publicado em 01/12/2005 Português
Relevância na Pesquisa
46.06%
This paper presents a Computable General Equilibrium model specified to simulate the policy impacts on income distribution in Brazil, with complex and systemic propagation methods. To capture the distributive impacts, the model adopts a design focused on the separation of production and institutional factors, as labor and households. The model has three blocks: product and factor markets, and a block that handles with income transfers among institutions. The labor market specification incorporates a recent theoretical advance that allows the determination of involuntary unemployment in the equilibrium. The third block specifies the distribution of the value added among production factors and the redistribution of income among agents/institutions. The simulations of a partial economic "closure" show modest welfare reduction for most workers and families. Also, we checked that the homogeneity property of the model holds only with full indexation of all income transfers, which has important implications for the income distribution process modeling.; Neste artigo é apresentado um modelo de Equilíbrio Geral Computável especificado para simular os impactos de políticas na distribuição de renda no Brasil. Para capturar os impactos distributivos...