archives@tulane.edu / People living through changes in their surroundings react to it unexpectedly. Exogenous political, economic and legal changes impact individual behavior in an unpredictable manner. This dissertation uses three papers to give evidence of exogenous shocks affecting individual behavior. First, I study the impact of an economic change. Using business cycle indicators, I show that a change in the employment status of parents causes them to invest higher time with their children instead of exploring new job opportunities in the early months of unemployment. The short term impact of unemployment is favorable for child development even though literature has shown that long term unemployment is detrimental to child well-being. Second, I explore the impact of a spillover of a policy intended to save energy. The Daylight Savings Time was implemented during the World Wars to conserve energy. Over the decades, its impact on energy conservation has diminished. My research shows that there are clear evidences of serious disruption in daily lives of those subjected to the clock change twice a year, causing higher stress and lower sleep in the early weeks of the time change. Third, I study the legalization of medical marijuana on consumption of marijuana and alcohol patterns, as well as criminal behavior among those subjected to it. The results show that even though there is a slight increase in marijuana and alcohol consumption among adults, there is no evidence to support that it encourages teenagers to explore marijuana consumption. There is also no evidence of any change in criminal behavior. / 1 / Sanjukta Basu

This dissertation addresses the causes of and policy responses to the 1990s current account crises. The first chapter explores the relative importance of external shocks as key determinants of the significant increase of foreign reserves accumulated in many emerging market economies, and provides a comprehensive framework to assess the adequacy of reserve holdings. Using the case of Mexico, I find that more than two thirds of the increase in international reserves can be replicated by a linear combination of external shocks, without an abrupt regime shift after the Tequila crisis. I also find that Mexico has historically adopted an appropriate reserves policy, with 1994 being an exception. However, under the current reserves policy, there is a positive probability of a current account crisis in the near future. In chapter Two, I investigate the optimal reserves policy. The analysis predicts an optimal level of reserves in Mexico that is considerably higher than the actual level. When I account for the possibility of a bailout by the outside world in case of a crisis, Mexico's current reserves policy is in the range of my model's predictions. The final chapter proposes a new explanation for the existence and nature of sudden stops. In my model, a sudden stop forms a necessary solution to the moral hazard problem in investment and can be rationalized as part of an optimal lending strategy in the face of asymmetric information. / Thesis (Ph.D, Economics) -- Queen's University, 2009-08-13 22:52:26.219

Esta tese é composta por três artigos que exploram a relação entre estrutura de capital e o setor. A literatura traz evidências que as firmas consideram as ações e decisões de seus pares competidores para tomar suas próprias decisões e que dentro deste ambiente elas podem ter estruturas de capital homogêneas. O objetivo geral é encontrar evidências que fatores relacionados ao setor são relevantes na determinação da estrutura de capital das firmas brasileiras. A contribuição está na busca pelos motivos que explicam esta influência e se os padrões do setor são importantes para as empresas brasileiras, como têm se mostrado para dados de empresas americanas. Esta tese se justifica por contribuir diretamente com as pesquisas que buscam avançar na compreensão de como os fatores relacionados ao setor vão afetar a estrutura de capital das firmas, sem desconsiderar os fatores internos. O primeiro capítulo é um artigo teórico que revisa os artigos publicados sobre o papel do endividamento nas relações intrasetor, competição e Organização Industrial. A relação da alavancagem com desempenho e sobrevivência é um dos temas principais. Os estudos revisados mostram que muitas vezes a firma endividada vai ter pior desempenho no mercado devido ao comportamento predatório das rivais. Não há consenso sobre o comportamento da firma endividada, existem autores que acreditam no comportamento mais agressivo, outros no comportamento mais conservador, assim como a falência de uma firma no setor pode trazer resultados positivos ou negativos para as demais. O segundo capítulo é um artigo empírico que utiliza as alterações de IPI realizadas pelo governo brasileiro como choques exógenos na relação entre alavancagem da firma e do setor. Foram utilizados dados de empresas brasileiras entre 2007-2015. O modelo econométrico utilizado foi o diff-in-diff-in-diff. Os resultados mostram uma relação positiva entre a alavancagem média do setor e da firma, relação esta que se mantém para o grupo de tratamento após a inclusão do choque exógeno de redução do IPI no modelo. Estes resultados se alinham com trabalhos que colocam o setor no centro dos aspectos influenciadores da estrutura de capital da firma. O terceiro e último capítulo também é um artigo empírico onde, em um modelo de ajustamento parcial, a relação entre oportunidades de crescimento de uma firma, quando maiores que as oportunidades de crescimento do setor, vão representar possíveis choques exógenos idiossincráticos recebidos por ela. Foram utilizados dados de empresas brasileiras entre 1995-2016. Os resultados principais confirmam que existe uma relação negativa, se há aumento da razão das oportunidades de crescimento da firma i em relação às oportunidades de crescimento do seu setor j, seus indicadores de alavancagem serão reduzidos, se houver queda na razão das oportunidades de crescimento, haverá aumento da alavancagem. Estes resultados estão ligados a trabalhos que afirmam que empresas com maiores oportunidades de investimento são mais eficientes, tem maior lucratividade e vão procurar manter níveis mais baixos de alavancagem e à Teoria da Agência quando demonstra que as firmas com baixas oportunidades de investimento usam o aumento da dívida como forma de controle dos gerentes. / This doctoral dissertation is composed of three papers that explore the relationship between capital structure and the Industry. Literature brings evidence that firms consider the actions and decisions of their competing peers to make their own decisions and they may have homogenous capital structures. The primary objective is to find evidence that industry factors are relevant in determining the capital structure of Brazilian firms. The study contribution is clarifying the reasons for this influence and answering if the industry\'s standards are important for the Brazilian companies as they have been as shown for the data of American companies. This dissertation is justified by contributing to the researches that advance in the understanding of how the industry\'s factors will affect the capital structure of the firms, without disregarding the internal factors. The first chapter is a theoretical article that reviews papers about the role of debt in the intraindustry relations, competition and Industrial Organization. The relationship of leverage with performance and survival is one of the main themes. The reviewed studies show that often the indebted firm will poorly perform on the market due to the predatory behavior of rivals. There is no consensus about the behavior of the indebted firm, there are authors who believe in more others in less aggressive behavior, as well as the bankruptcy of one firm in the industry can bring positive or negative results to others. The second chapter is an empirical investigation that uses IPI benefits (tax benefit) offered by the Brazilian government as an exogenous shock in the relationship between firm and industry leverage. We used data from Brazilian companies between 2007 and 2015. The econometric model used was diff-in-diff-in-diff. The results show a direct relationship between the mean industry leverage and the firm\'s leverage. The same remains for the treatment group after inclusion of exogenous shock of IPI reduction in the model. These results are aligned with studies that consider the industry as the principal influencing aspect of the firm\'s capital structure. The third and final chapter is also an empirical investigation using a partial adjustment model. The relationship between a firm\'s growth opportunities, when larger than the industry\'s growth opportunities, will represent possible received idiosyncratic exogenous shock. The Data is from Brazilian companies between 1995 and 2016. The main results confirm that there is an inverse relationship. If the ratio of growth opportunities of firm i compared with the growth opportunities of its industry j increase, than its leverage indicators will be reduced. If there is a decrease in the growth opportunities, than there will be increased leverage. These results are related to papers that show companies with greater investment opportunities are more efficient, have higher profitability and will try to maintain lower levels of leverage. These results are also related to Agency Theory, when it demonstrates that firms with low investment opportunities use the increase debt as a managerial control tool.

Esta tese é composta por três artigos que exploram a relação entre estrutura de capital e o setor. A literatura traz evidências que as firmas consideram as ações e decisões de seus pares competidores para tomar suas próprias decisões e que dentro deste ambiente elas podem ter estruturas de capital homogêneas. O objetivo geral é encontrar evidências que fatores relacionados ao setor são relevantes na determinação da estrutura de capital das firmas brasileiras. A contribuição está na busca pelos motivos que explicam esta influência e se os padrões do setor são importantes para as empresas brasileiras, como têm se mostrado para dados de empresas americanas. Esta tese se justifica por contribuir diretamente com as pesquisas que buscam avançar na compreensão de como os fatores relacionados ao setor vão afetar a estrutura de capital das firmas, sem desconsiderar os fatores internos. O primeiro capítulo é um artigo teórico que revisa os artigos publicados sobre o papel do endividamento nas relações intrasetor, competição e Organização Industrial. A relação da alavancagem com desempenho e sobrevivência é um dos temas principais. Os estudos revisados mostram que muitas vezes a firma endividada vai ter pior desempenho no mercado devido ao comportamento predatório das rivais. Não há consenso sobre o comportamento da firma endividada, existem autores que acreditam no comportamento mais agressivo, outros no comportamento mais conservador, assim como a falência de uma firma no setor pode trazer resultados positivos ou negativos para as demais. O segundo capítulo é um artigo empírico que utiliza as alterações de IPI realizadas pelo governo brasileiro como choques exógenos na relação entre alavancagem da firma e do setor. Foram utilizados dados de empresas brasileiras entre 2007-2015. O modelo econométrico utilizado foi o diff-in-diff-in-diff. Os resultados mostram uma relação positiva entre a alavancagem média do setor e da firma, relação esta que se mantém para o grupo de tratamento após a inclusão do choque exógeno de redução do IPI no modelo. Estes resultados se alinham com trabalhos que colocam o setor no centro dos aspectos influenciadores da estrutura de capital da firma. O terceiro e último capítulo também é um artigo empírico onde, em um modelo de ajustamento parcial, a relação entre oportunidades de crescimento de uma firma, quando maiores que as oportunidades de crescimento do setor, vão representar possíveis choques exógenos idiossincráticos recebidos por ela. Foram utilizados dados de empresas brasileiras entre 1995-2016. Os resultados principais confirmam que existe uma relação negativa, se há aumento da razão das oportunidades de crescimento da firma i em relação às oportunidades de crescimento do seu setor j, seus indicadores de alavancagem serão reduzidos, se houver queda na razão das oportunidades de crescimento, haverá aumento da alavancagem. Estes resultados estão ligados a trabalhos que afirmam que empresas com maiores oportunidades de investimento são mais eficientes, tem maior lucratividade e vão procurar manter níveis mais baixos de alavancagem e à Teoria da Agência quando demonstra que as firmas com baixas oportunidades de investimento usam o aumento da dívida como forma de controle dos gerentes. / This doctoral dissertation is composed of three papers that explore the relationship between capital structure and the Industry. Literature brings evidence that firms consider the actions and decisions of their competing peers to make their own decisions and they may have homogenous capital structures. The primary objective is to find evidence that industry factors are relevant in determining the capital structure of Brazilian firms. The study contribution is clarifying the reasons for this influence and answering if the industry\'s standards are important for the Brazilian companies as they have been as shown for the data of American companies. This dissertation is justified by contributing to the researches that advance in the understanding of how the industry\'s factors will affect the capital structure of the firms, without disregarding the internal factors. The first chapter is a theoretical article that reviews papers about the role of debt in the intraindustry relations, competition and Industrial Organization. The relationship of leverage with performance and survival is one of the main themes. The reviewed studies show that often the indebted firm will poorly perform on the market due to the predatory behavior of rivals. There is no consensus about the behavior of the indebted firm, there are authors who believe in more others in less aggressive behavior, as well as the bankruptcy of one firm in the industry can bring positive or negative results to others. The second chapter is an empirical investigation that uses IPI benefits (tax benefit) offered by the Brazilian government as an exogenous shock in the relationship between firm and industry leverage. We used data from Brazilian companies between 2007 and 2015. The econometric model used was diff-in-diff-in-diff. The results show a direct relationship between the mean industry leverage and the firm\'s leverage. The same remains for the treatment group after inclusion of exogenous shock of IPI reduction in the model. These results are aligned with studies that consider the industry as the principal influencing aspect of the firm\'s capital structure. The third and final chapter is also an empirical investigation using a partial adjustment model. The relationship between a firm\'s growth opportunities, when larger than the industry\'s growth opportunities, will represent possible received idiosyncratic exogenous shock. The Data is from Brazilian companies between 1995 and 2016. The main results confirm that there is an inverse relationship. If the ratio of growth opportunities of firm i compared with the growth opportunities of its industry j increase, than its leverage indicators will be reduced. If there is a decrease in the growth opportunities, than there will be increased leverage. These results are related to papers that show companies with greater investment opportunities are more efficient, have higher profitability and will try to maintain lower levels of leverage. These results are also related to Agency Theory, when it demonstrates that firms with low investment opportunities use the increase debt as a managerial control tool.

How did the Italian mafia affect honest Italian descendants on the American labor market? This is a study about how an exogenous shock to ethnic discrimination on the labor market affected a whole ethnic group. The goal with this study is to analyze how a massacre by Al Capone’s crew in 1929 affected Italian workers on the American labor market. Using linked census-data of all working-age men 1920-30, this paper studies the ethnic discrimination of second-generation Italian immigrants. The treatment group is Italian men, and the control groups are other immigrants and natives. Three different outcome variables will be used, employment, wage employment, and self-employment. The results suggest that Italians saw lower chances of being employed, lower chances of being wage employed, and higher chances of being self-employed post 1930 compared to other immigrants and natives. This suggest that Italians were forced into self-employment. A conclusion that the ethnic discrimination towards Italians is a result of the tragic massacre cannot be made due to no data on the news distribution. The news distribution system in America could give an indication on how the news were shown in surrounding areas and this could therefore reflect the employers’ attitudes towards Italians. Further studies are therefore required in order to conclude if the massacre gave Italians a harder time on the labor market or not but for now, we have an indication on that Italians were more affected post 1930 compared to other immigrants and natives.

Magister Commercii - MCom / Diversification is one of the more familiar concepts in finance because of its ability to curtail risk towards investors. However, for diversification to be efficient, the assets combined should have inversely related price movements. In the same light, previous research done on international portfolio diversification has consistently found that having investments diversified across different global markets that have low to medium correlations helps to get as close to an optimal portfolio as possible. However, previous research also indicates that both global financial integration and exogenous shocks increase correlations among international markets, hence negating the benefits of international portfolio diversification to an extent. Therefore, with global integration on the rise, coupled with economic and political instability in some BRICS nations, the research examines these factors and gauges the current viability of international portfolio diversification from the perspective of a South African investor.