Dynamic Effects of MERCOSUR: an assessment for Argentina

We evaluate the potential dynamic effects of MERCOSUR on the Argentinean economy. Two approaches, already used with other regional integration agreements, are applied for measuring, respectively, medium and long-term effects. All estimations are carefully checked and have their magnitudes contrasted with other figures derived from different sources. Besides, complementary empirical assessments are done. The diverse empirical evidences found support the argument that MERCOSUR provoked growth effects in Argentina.

The impact of social security reform on occupational and retirement behavior : a quantitative assessment for Brazil

Population ageing is a problem that countries will have to cope with within a few years. How would changes in the social security system affect individual behaviour? We develop a multi-sectoral life-cycle model with both retirement and occupational choices to evaluate what are the macroeconomic impacts of social security reforms. We calibrate the model to match 2011 Brazilian economy and perform a counterfactual exercise of the long-run impacts of a recently adopted reform. In 2013, the Brazilian government approximated the two segregated social security schemes, imposing a ceiling on public pensions. In the benchmark equilibrium, our modelling economy is able to reproduce the early retirement claiming, the agents' stationary distribution among sectors, as well as the social security deficit and the public job application decision. In the counterfactual exercise, we find a significant reduction of 55\% in the social security deficit, an increase of 1.94\% in capital-to-output ratio, with both output and capital growing, a delay in retirement claims of public workers and a modification in the structure of agents applying to the public sector job.

The effect of social security, demography and technology on retirement

This article investigates the causes in the reduction of labor force participation of the old. We argue that the changes in social security policy, in technology and in demography may account for most of the changes in retirement over the second part of the last century in the U.S. economy. We develop a dynamic general equilibrium model with endogenous retirement that embeds social security legislation. The model is able to match very closely the increase in the retirement rate of males aged 65 and older. It also quanti es the isolated impact on retirement and on the solvency of the social security system of the di¤erent factors. The model suggests that technological and demographic changes had a strong in uence on retirement, so that it would have increased signi cantly even if the social security rules had not changed. However, as the latter became much more generous in the past, changes in social security policy can account not only for a sizeable part of the expansion of retirement, but also for the most of the observed increase in the social security expenses as a share of GDP.

The effect of social security, demography and technology on retirement

This article investigates the causes in the reduction of labor force participation of the old. We argue that the changes in social security policy, in technology and in demography may account for most of the changes in retirement over the second part of the last century in the U.S. economy. We develop a dynamic general equilibrium model with endogenous retirement that embeds social security legislation. The model is able to match very closely the increase in the retirement rate of males aged 65 and older. It also quanti es the isolated impact on retirement and on the solvency of the social security system of the di¤erent factors. The model suggests that technological and demographic changes had a strong in uence on retirement, so that it would have increased signi cantly even if the social security rules had not changed. However, as the latter became much more generous in the past, changes in social security policy can account not only for a sizeable part of the expansion of retirement, but also for the most of the observed increase in the social security expenses as a share of GDP.

Essays in taxation and savings

Esta tese é composta por três artigos. Dois deles investigam assuntos afeitos a tributação e o terceiro é um artigo sobre o tema “poupança”'. Embora os objetos de análise sejam distintos, os três possuem como característica comum a aplicação de técnicas de econometria de dados em painel a bases de dados inéditas. Em dois dos artigos, utiliza-se estimação por GMM em modelos dinâmicos. Por sua vez, o artigo remanescente é uma aplicação de modelos de variável dependente latente. Abaixo, apresenta-se um breve resumo de cada artigo, começando pelos dois artigos de tributação, que dividem uma seção comum sobre o ICMS (o imposto estadual sobre valor adicionado) e terminando com o artigo sobre poupança. O primeiro artigo analisa a importância da fiscalização como instrumento para deter a evasão de tributos e aumentar a receita tributária, no caso de um imposto sobre valor adicionado, no contexto de um país em desenvolvimento. O estudo é realizado com dados do estado de São Paulo. Para tratar questões relativas a endogeneidade e inércia na série de receita tributária, empregam-se técnicas de painel dinâmico. Utiliza-se como variáveis de controle o nível do PIB regional e duas proxies para esforço fiscal: a quantidade e o valor das multas tributárias. Os resultados apontam impacto significativo do esforço fiscal nas receitas tributárias. O artigo evidencia, indiretamente, a forma como a evasão fiscal é afetada pela penalidade aplicada aos casos de sonegação. Suas conclusões também são relevantes no contexto das discussões sobre o federalismo fiscal brasileiro, especialmente no caso de uma reforma tributária potencial. O segundo artigo examina uma das principais tarefas das administrações tributárias: a escolha periódica de contribuintes para auditoria. A melhora na eficiência dos mecanismos de seleção de empresas tem o potencial de impactar positivamente a probabilidade de detecção de fraudes fiscais, provendo melhor alocação dos escassos recursos fiscais. Neste artigo, tentamos desenvolver este mecanismo calculando a probabilidade de sonegação associada a cada contribuinte. Isto é feito, no universo restrito de empresas auditadas, por meio da combinação “ótima” de diversos indicadores fiscais existentes e de informações dos resultados dos procedimentos de auditoria, em modelos de variável dependente latente. Após calculados os coeficientes, a probabilidade de sonegação é calculada para todo o universo de contribuintes. O método foi empregado em um painel com micro-dados de empresas sujeitas ao recolhimento de ICMS no âmbito da Delegacia Tributária de Guarulhos, no estado de São Paulo. O terceiro artigo analisa as baixas taxas de poupança dos países latino-americanos nas últimas décadas. Utilizando técnicas de dados em painel, identificam-se os determinantes da taxa de poupança. Em seguida, faz-se uma análise contrafactual usando a China, que tem apresentado altas taxas de poupança no mesmo período, como parâmetro. Atenção especial é dispensada ao Brasil, que tem ficado muito atrás dos seus pares no grupo dos BRICs neste quesito. O artigo contribui para a literatura existente em vários sentidos: emprega duas amplas bases de dados para analisar a influência de uma grande variedade de determinantes da taxa de poupança, incluindo variáveis demográficas e de previdência social; confirma resultados previamente encontrados na literatura, com a robustez conferida por bases de dados mais ricas; para alguns países latino-americanos, revela que as suas taxas de poupança tenderiam a aumentar se eles tivessem um comportamento mais semelhante ao da China em outras áreas, mas o incremento não seria tão dramático.

Microinsurance: income risk, social security and the demand for private onsurance by low-income families

Insurance provision against uncertainties is present in several dimensions of peoples´s lives, such as the provisions related to, inter alia, unemployment, diseases, accidents, robbery and death. Microinsurance improves the ability of low-income individuals to cope with these risks. Brazil has a fairly developed financial system but still not geared towards the poor, especially in what concerns the insurance industry. The evaluation of the microinsurance effects on well-being, and the demand for different types of microinsurance require an analysis of the dynamics of the individual income process and an assessment of substitutes and complementary institutions that condition their respective financial behavior. The evaluation of the microinsurance effects on well-being, and the demand for different types of microinsurance require an analysis of the dynamics of the individual income process and an assessment of substitutes and complementary institutions that condition their respective financial behavior. The Brazilian government provides a relatively developed social security system considering other countries of similar income level which crowds-out the demand for insurance and savings. On the other hand, this same public infrastructure may help to foster microfinance products supply. The objective of this paper is to analyze the demand for different types of private insurance by the low-income population using microdata from a National Expenditure Survey (POF/IBGE). The final objective is to help to understand the trade-offs faced for the development of an emerging industry of microinsurance in Brazil.