The financial crisis of 2008 was characterized by disruptions in credit markets and sharp rises in unemployment. This dissertation contributes to our understanding of the interaction of credit and labour markets. The first chapter studies the impact of credit frictions on labour demand given that the labour market is frictionless. The second chapter introduces search and matching to the labour market and studies the interaction between the two types of frictions. The third chapter investigates wages determined by surplus sharing between firms and workers in the environment with search and credit frictions. In Chapter 1 I develop a partial equilibrium model where homogenous firms face credit frictions in the form of collateral constraints. As a result of these frictions firms' demand for capital depends on their net worth. Firms hire workers in the frictionless labour market with an upward-sloping labour supply curve. The model generates a large, although short-lived, response of capital demand to a negative productivity shock. Through complementarity of factors of production the decrease in capital affects employment and wages. As a result of a one standard deviation negative productivity shock employment falls by around 0.65% and wages fall by around 1.3% as opposed to 0.11% and 0.25%, respectively, in the first-best economy. I also find that changing capital and labour supply elasticities have different implications in the presence of credit frictions compared to the first-best economy. Chapter 2 extends Chapter 1 by introducing search frictions to the labour side of the economy. On one hand, when buying capital firms have to deal with the credit frictions outlined above. On the other hand, when hiring workers they face standard search and matching frictions. I then study the interaction of the two frictions. Credit frictions affect labour demand through complementarity of capital and labour. Search frictions influence capital demand through wages: When wages are only partially flexible, the decline in firms' net worth is larger, and the resulting fall in capital is larger as well. I also find that the response of wages to wage flexibility is non-monotonic in the presence of credit frictions. This could potentially explain why we see wages fall little in data. In Chapter 3 I use a model of search and credit frictions developed in Chapter 2 to investigate wages determined by surplus sharing in such environment. I find that credit frictions affect the surplus-sharing mechanism in such a way that they increase the worker's effective bargaining power. That is, the firm and the worker negotiate wages as if the worker had a higher bargaining power. This is due to the fact that under search and credit frictions the firm values workers more that under pure search frictions because output they produce increases the firm's net worth. However, the effective worker's bargaining power appears to be endogenous to the firm's capital holdings and the number of employees. The more capital the firm has, the less the firm is financially constrained, and the lower wages its workers are able to extract. Due to endogeneity of the worker's effective bargaining power, the effect of credit frictions on wages is ambiguous.

Ce travail de doctorat explore les conséquences des activités de recherche d’emploi sur trois aspects de l’économie : la qualité des emplois à travers l’appariement entre les travailleurs et les entreprises, les contrastes géographiques en matière de chômage, et la croissance des salaires au cours de la vie. / This PhD dissertation explores the consequences of search activities on three dimensions of the economy: the quality of jobs through the matching between workers and firms, the geographical disparities in unemployment, and the wage growth over the life cycle through job mobility.

Submitted by Bruno Rodrigues Camargo (brunorodriguescamargo@gmail.com) on 2018-07-18T14:56:06Z No. of bitstreams: 1 Thesis_BRUNO_CAMARGO_final.pdf: 1776056 bytes, checksum: 4b6f4750984666be7fb977f4384bb228 (MD5) / Approved for entry into archive by ÁUREA CORRÊA DA FONSECA CORRÊA DA FONSECA (aurea.fonseca@fgv.br) on 2018-07-24T21:02:27Z (GMT) No. of bitstreams: 1 Thesis_BRUNO_CAMARGO_final.pdf: 1776056 bytes, checksum: 4b6f4750984666be7fb977f4384bb228 (MD5) / Made available in DSpace on 2018-07-27T18:44:59Z (GMT). No. of bitstreams: 1 Thesis_BRUNO_CAMARGO_final.pdf: 1776056 bytes, checksum: 4b6f4750984666be7fb977f4384bb228 (MD5) Previous issue date: 2018-06-28 / In this thesis I empirically investigate the role of non-price related search frictions in the access to finance by firms. The focus is on the relationship between these factors and how their variation in time can affect access to finance. The study uses a rich dataset of small, medium and large firms from 109 countries, mostly of them emerging economies, and of country related search friction indicators. Results show that banking outreach indicators and informational infrastructure are strongly associated with access to finance. The percentage of internet users and its variation are the most relevant of the informational variables, especially for small and medium enterprises. For large firms, the changes in fixed phone subscriptions and in the proportion of branches by population are the most relevant frictions. Results shed light on the already identifiable role of internet on financial inclusion of SMEs, and on the difference search frictions make in the access to finance depending on firm’s size. / Esta dissertação investiga empiricamente o papel das fricções de busca não relacionadas a preços no acesso a financiamento por empresas. O foco está na relação entre elas, bem como no efeito das mudanças nesses indicadores nos níveis de acesso a financiamento. O estudo usa um rico conjunto de dados de pequenas, médias e grandes empresas de 109 países, a maioria países em desenvolvimento, e de indicadores de fricção de busca por país. Os resultados mostram que os indicadores de alcance bancário e de infraestrutura informacional estão fortemente associados ao acesso a financiamento. A porcentagem de usuários da internet e a sua variação são as mais relevantes dentre as variáveis informacionais, especialmente para pequenas e médias empresas. Para as grandes empresas, as variações no número de assinaturas de telefonia fixa e na proporção de agências bancárias pela população são mais relevantes. Os resultados esclarecem o papel já identificável da internet na inclusão financeira de PMEs e a diferença que as fricções de busca fazem no acesso a financiamento dependendo do tamanho da empresa.

Diese Doktorarbeit besteht aus drei Aufsätzen, in welchen die Reaktion von Finanzinstitutionen auf Geldpolitik analysiert wird. In dem ersten Aufsatz finde ich anhand eines Bayesian VAR, dass eine Erhöhung des Leitzinses zu einer zusätzlichen Kreditvergabe in Nichtbanken (NBFI) führt. Banken verleihen wie bereits bekannt weniger. Der Grund für die gegensätzliche Bewegung liegt in der unterschiedliche Art der Finanzierung. Dieser Befund legt nahe, dass die Existenz von NBFI die Volatilität der aggregierten Kreditvergabe zu geldpolitischen Schocks verringern könnte. Zusätzlich bietet die Analyse einen Erklärungsansatz für die Beobachtung, dass sich die Kreditvergabe seit der Finanzkrise stockend entwickelt hat. Im zweiten Aufsatz knüpfe ich an diese empirische Untersuchung an, indem ich ein theoretisches Modell mit unterschiedlichen Arten von Firmenfinanzierung entwerfe. Haushalte müssen sich zwischen festverzinsichlichen und erfolgsbedingten Sparmöglichkeiten entscheiden. Auf Grundlage des Modells von Bernanke, Gertler und Gilchrist (1999) mikrofundiere ich die Entscheidung über Unternehmensgründung in Form von Eigenkapitalinvestitionen. Im dritten Aufsatz entwickele ich ein geschätztes DSGE Modell mit Finanzierungsfriktionen, welches in der Lage ist, die empirischen Ergebnisse zu replizieren. Ich untersuche, wie sich die Regulierung von Schattenbanken auf eine Volkswirtschaft am ZLB auswirkt. Konsumvolatilität wird reduziert, wenn Schattenbankenkredite stattdessen von Banken vergeben werden. Alternativ dazu führt die Behandlung von Schattenbanken wie Investment Fonds dazu, dass eine Volkswirtschaft am ZLB eine mildere Rezession und einen schnelleren Austritt erlebt. Der Grund liegt darin, dass ein Nachfrageschock, der die Volkswirtschaft zum ZLB bringt, eine Reaktion hervorruft, die vergleichbar mit geldpolitischen Schocks ist, da am ZLB keine Möglichkeit der Leitzinsverringerung besteht. / This thesis consists of three essays that analyze the reaction of financial institutions to monetary policy. In the first essay, I use a Bayesian VAR to show that an increase in the monetary policy rate raises credit intermediation by non-bank financial institutions (NBFI). As is well known, credit intermediation by banks is reduced. The movement in opposite directions is explained by the difference in funding. This finding suggests that the existence of NBFI may decrease aggregate volatility following monetary policy shocks. Following this evidence, I construct a theoretical model that includes different types of funding in the second essay. Households face a savings choice between state contingent (equity) and non-state contingent (debt) assets. I use the financial accelerator model of Bernanke, Gertler and Gilchrist (1999) as a basis and microfound the decision by which new net worth in entrepreneurs is created. A Bayesian estimation suggests a change in the survival rate of entrepreneurs, affecting impulse responses. The analysis suggests that models that use the financial accelerator should include endogenous firm entry if variables regarding household portfolios or shocks directly affecting firm net worth are considered. In the third essay, I develop an estimated monetary DSGE model with funding market frictions that is able to replicate the empirical facts. In a counterfactual exercise I study how the regulation of shadow banks affects an economy at the ZLB. Consumption volatility is reduced when shadow bank assets are directly held by commercial banks. Alternatively, regulating shadow banks like investment funds results in a milder recession during, and a quicker escape from, the ZLB. The reason is that a recessionary demand shock that moves the economy to the ZLB has similar effects to a monetary tightening due to the inability to reduce the policy rate below zero.

We’re often warned that the internet will hasten the dating apocalypse. The internet (it is posited) is depriving us of the elusive in-person magic, and modern courtship is now little more than love at first byte. There remains uncertainty, however, about what the independent impact of the internet on the dating market has been. Similar to the internet, the telephone also changed the way we communicate, but its effect on the dating market was mostly complementary to the 'traditional' ways of meeting – i.e. calling your school crush at home. So the question remains: Is the effect of the internet on the dating market complementary (adding your school crush on Facebook) or substitutionary (matching with a stranger on Tinder)? Is the internet any better than the telephone? If all that was known about a random couple is that they met after 2015, I find that there is a 1 in 3 chance that the couple met as strangers online. Lesbian couples who met after 2015 have a 1 in 2 chance of meeting online, whereas gay male couples have a 63% probability of meeting online as strangers. This increased likelihood of same-sex couples meeting online (as opposed to heterosexual couples) confirms the thin-market hypothesis. The key value proposition of the internet is that it reduces search frictions in the dating market – effectively making it easier for individuals to seek out their optimal matching. I find that the internet is primarily displacing only ‘social circles’ as a dating venue – the probability of meeting partners in public or at institutions (like college) is unchanged. In other words – individuals are essentially replacing their friends with Wi-Fi when it comes to mate search.

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Diese Dissertation befasst sich mit Arbeitsmarkterfolg und Konsum sozioökonomischer Gruppen. Die ersten zwei Kapitel untersuchen konjunkturelle Auswirkungen auf Arbeitsmärkten für Hoch- und Niedrigqualifizierte. Zunächst wird ein qualifikationsspezifisches Konjunkturmodell mit Suchkosten entworfen. Es zeigt, dass imperfekte Substitution zwischen hoch- und niedrigqualifizierter Arbeit ein Grund für Veränderungen auf den Teilmärkten ist. Gemeinsam mit qualifikationsneutralen und -verzerrten Technologieschocks ist das Modell in der Lage, fallende Beveridge-Kurven zu generieren. Das zweite Kapitel erweitert diesen Ansatz um eine Verbindung zwischen qualifikationsabhängigen Arbeitsmärkten mit endogenen Investitionen in Humankapital. Idiosynkratische Schocks wirken auf den Anteil qualifizierter Arbeit und verändern die Arbeitsmarktdichte auf den Teilmärkten. Neutrale Schocks wirken zweistufig auf die Gesamtarbeitslosigkeit: Zuerst reduzieren sie geringqualifizierte Arbeitslosigkeit, und dann verringern sie rapide hochqualifizierte Arbeitslosigkeit. Eine hohe Substitutions-Elastizität zwischen den beiden Qualifikationen führt zu einer höheren Volatilität und einer höheren Korrelation zwischen Arbeitslosigkeit und freien Stellen. Das dritte Kapitel untersucht die Verbindung zwischen Gruppen-Konsumwachstum und dessen Volatilität, wenn die Agenten heterogen sind und eine Konsumexternalität vorliegt. Die Präferenzen der Haushalte hängen mit der Konsumwachstumsvolatilität insofern zusammen, als diese Vermögensentscheidungen treffen müssen: Die Volatilität verringert sich mit der Geduld und steigt mit dem Wunsch, das Konsumniveau der Vergleichsgruppe zu halten. Darüber hinaus sollten Konsumwachstum und dessen Volatilität positiv korrelieren. Diese letzte Hypothese wird mit Daten aus dem Sozio-oekonomischen Panel und der Einkommens- und Verbrauchsstichprobe überprüft, wobei sich ein U-förmiger Zusammenhang zwischen Konsumwachstum kurzlebiger Güter und dessen Volatilität ergibt. / This dissertation addresses the labor market performance and consumption dynamics of different socioeconomic groups. The first part examines the connection between cyclical variations in skilled and unskilled labor markets. Using a business cycle model with search frictions in skill-specific markets, I find that imperfect substitution between skilled and unskilled labor creates an important channel for variations in the skill-specific markets. Together with a skill-neutral or -biased technology shock, the model generates downward-sloping Beveridge curves in aggregate and skill-specific labor markets. I extend the study to allow for a dynamic link between the skill-specific labor markets. Human capital investment is determined endogenously and idiosyncratic shocks shift the skilled labor share and change tightness in both skilled and unskilled markets. Upon a neutral shock, the decrease of total unemployment is two-staged: Firstly with a reduction in unskilled unemployment, and then with a sharp decline of skilled unemployment when skill substitution dominates. A larger elasticity of substitution between the two types of labor leads to higher volatility of the model variables and higher correlation between unemployment and vacancies. The second part studies the link between group-specific consumption growth and its volatility in a framework of heterogeneous agents, under the assumption of a consumption externality. Household preferences are related to the consumption growth volatility through asset holding decisions: The volatility decreases with groups'' patience, and increases with the eagerness to keep up with the group average. Moreover, consumption growth is expected to be positively related to its volatility. This last hypothesis is tested using household data imputed from the German Socio-Economic Panel and the German Income and Expenditure Survey, where a U-shaped relationship is found between nondurable consumption growth and its volatility.