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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

[en] OLIGOPSONY POWER IN LABOR MARKETS: EVIDENCE FROM A PAYROLL TAX REFORM / [pt] OLIGOPSÔNIO NO MERCADO DE TRABALHO: EVIDÊNCIAS DA DESONERAÇÃO DA FOLHA DE PAGAMENTO

LISA ORSI BEIHY PACHECO 11 May 2021 (has links)
[pt] Analisar comportamentos não-competitivos no mercado de trabalho tem se tornado um aspecto crucial para melhorar a compreensão das dinâmicas do mercado de trabalho, e estimar elasticidades-salário da oferta de trabalho pode auxiliar a determinar a existência de estruturas de oligopsônio. Ao construir sobre Manning (2003), uso dados de contratos identificados por empregadorempregado, e aproveito choques específicos de desonerações na folha de pagamento, para estimar elasticidades-salário da oferta de trabalho para o mercado de trabalho brasileiro. Estimamos elasticidades-salário de separações e contratações utilizando de uma abordagem por IV que permite a identificação de variações exógenas nos salários, através da desoneração implementada no Brasil, que representa choques à demanda por trabalho. Enquanto estimativas padrão por MQO são baixas (e irrealistas) como na literatura recente, estimativas usando a abordagem de variáveis instrumentais são muito mais razoáveis. Os resultados indicam a existência de considerável poder de mercado pelo lado de firmas no mercado de trabalho no Brasil, com a elasticidade no nível do mercado de 1.4 e no nível da firma de 4.4. Finalmente, avaliamos se o poder de oligopsônio das firmas difere entre níveis de qualificação, e entre municípios mais ou menos urbanos e informais. Encontramos que as firmas exertem maiores markdowns para trabalhadores menos qualificados, e que maior poder de mercado das firmas está correlacionado com menor urbanização e maior informalidade. / [en] Understanding non-competitive behavior in labor markets has become crucial to gain insight into labor market dynamics, and estimating labor supply wage elasticities can help determine the existence of oligopsony power. By building on Manning (2003), I use matched employer-employee data, and take advantage of sector-specific shocks to payroll taxes, to estimate labor supply wage elasticities for the Brazilian labor market. I estimate separation and recruitment elasticities using an IV approach that allows for the identification of exogenous variation in wages through the reform on payroll taxes implemented in Brazil, which represents shocks to labor demand. While standard OLS estimates are low (and unrealistic) as in the recent literature, estimates using the IV approach are much more reasonable. Results indicate that there exists considerable labor market power by firms in Brazil, with a market-level elasticity of 1.4 and a firm-level elasticity of 4.4. Finally, I evaluate whether oligopsony power is different between skill levels, as well as between more or less urbanized and informal municipalities. I find that firms exert higher markdowns for low-skill workers, and that higher labor market power is correlated with lower urbanization and higher informality.
2

Essays on Minimum Wages, Labour Supply and Public Finances / The German Experience over the Last Two Decades

Blömer, Maximilian Joseph 28 March 2023 (has links)
Diese Dissertation umfasst drei Aufsätze zu Mindestlöhnen, zum Arbeitsangebot sowie zu öffentlichen Finanzen. Der Fokus liegt auf den Entwicklungen in Deutschland innerhalb der letzten zwei Jahrzehnte. Der erste Aufsatz untersucht Beschäftigungseffekte des Mindestlohns in einem Modell der Sucharbeitslosigkeit. Das Modell bildet Heterogenität auf Arbeitnehmer- und Arbeitgeberseite ab und schränkt die Richtung der Beschäftigungseffekte ein. Es erlaubt eine unterschiedliche Frequenz der Stellensuche von Beschäftigten und Arbeitslosen und modelliert die Rekrutierungsintensität der Unternehmen. Die Ergebnisse zeigen, dass die Arbeitslosigkeit eine nicht-monotone Funktion des Mindestlohns ist. Die Auswirkungen von verschiedenen Mindestlöhnen unterscheiden sich stark nach Arbeitsmarktsegmenten. Der zweite Aufsatz befasst sich mit Trends im Arbeitsangebotsverhalten in Deutschland. Dazu werden diskrete Wahlmodelle des Arbeitsangebots für die Jahre von 1998 bis 2018 geschätzt. Die implizierten Arbeitsangebotselastizitäten haben in den letzten zwei Jahrzehnten zugenommen, insbesondere für Paare und für alleinstehende Männer. Eine Zerlegungsanalyse zeigt, dass Veränderungen in der Demografie nur eine geringe Rolle bei der Verschiebung der Eigen- und Kreuzlohnelastizitäten von Männern spielen, da der größte Teil der Veränderungen durch Präferenzen oder Arbeitsmarktrestriktionen bedingt ist. Bei Frauen hingegen spielen demografische Veränderungen eine größere Rolle für den Anstieg der Elastizitäten. Der dritte Aufsatz befasst sich mit den deutschen Staatsfinanzen sowie mit Reformen aufgrund der Finanzkrise 2008/2009. Der Aufsatz stellt die makroökonomische Situation und die Entwicklung der Krise in Deutschland dar und beleuchtet die Bedeutung für die öffentlichen Finanzen. In dem Aufsatz werden zudem die Verteilungswirkungen der Reformen im Steuer- und Transfersystem mithilfe von Mikrosimulationen untersucht. / This dissertation consists of three essays on the minimum wage, labour supply, and public finances. The selected essays focus on the German experience and developments over the last two decades. The first essay is an analysis of unemployment effects of the German minimum wage in an empirical equilibrium job search model. The estimated model with worker and firm heterogeneity does not restrict the sign of employment effects a priori; it allows for different job offer arrival rates for the employed and the unemployed and lets firms optimally choose their recruiting intensity. Results show that unemployment is a non-monotonic function of the minimum wage level, and effects differ strongly by labour market segment. The second essay is on the topic of labour supply elasticities in Germany. In order to analyse recent trends in labour supply in Germany, a static discrete choice model of unitary household labour supply is estimated for each year 1998 to 2018. Findings are that own-wage labour supply elasticities implied by the models have increased over the last two decades, especially for couples, and for single males. A decomposition analysis shows that compositional changes in demographics play only a minor role in the shift in males' own- and cross-wage elasticities, since most of the changes in elasticities are driven by preferences or labour market restrictions. For females, changes in composition play a bigger role in the rise of elasticities. The third essay reviews German public finances through the financial crisis 2008/2009. The essay starts with a presentation of the macroeconomic situation and how the crisis unfolded in Germany, before focusing on the situation of the public finances. Finally, the distributional effects of policy responses to the financial crisis are analysed on the individual level using microsimulation.

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