Essays In Dynamic Household Finance With Heterogeneous Agents
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Essays In Dynamic Household Finance With Heterogeneous Agents
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Author : Yosef Bonaparte
language : en
Publisher:
Release Date : 2008
Essays In Dynamic Household Finance With Heterogeneous Agents written by Yosef Bonaparte and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with categories.
Essays In Household Finance And Macroeconomics Of Heterogeneous Agents
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Author : Mengli Sha
language : en
Publisher:
Release Date : 2021
Essays In Household Finance And Macroeconomics Of Heterogeneous Agents written by Mengli Sha and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021 with categories.
This dissertation develops and estimates structural models with heterogeneous agents to understand empirical patterns from micro data that have important aggregate implications. The first two chapters study the aggregate impacts and distributional effects of credit supply shocks from banks and nonbank financial institutions on consumer durable expenditures. Subprime auto lending is concentrated in nonbank lenders. During the Great Recession, nonbank subprime auto lending declined dramatically vis-à-vis banks loans. The first chapter documents these facts and studies in detail how banks and nonbanks offer different loan rate schedules to different borrowers. Motivated by these facts, the second chapter embeds a novel ingredient of endogenous lender choices into a dynamic equilibrium model with heterogeneous households and lenders. The estimated model generates a 21% decline in auto sales triggered by nonbank credit supply shocks and income shocks and attributes approximately 37% of the collapse of the U.S. auto sales during the Great Recession to nonbank credit supply shocks, whereas the contribution of a bank credit supply shock of the same magnitude would have been merely 0.28%. Moreover, this analysis highlights different distributional implications of bank and nonbank credit supply shocks through a new mechanism: asymmetric ability to borrow. This concept captures the limited flexibility in the lender choices of nonbank borrowers, which negatively affects nonbank borrowers' car purchasing behaviors but not those of bank borrowers. Consequently, nonbank credit supply shocks have much larger impacts on durable expenditures, compared to bank shocks. These results cast light on the effectiveness of the Term Asset-Backed Securities Loan Facility (TALF), the emergency lending program that alleviated panic in the asset-backed securities market during the Great Recession: Without this program, auto sales could have dropped substantially more. The third chapter studies the role of overconfidence in households' stock portfolio adjustment decisions. Barber and Odean (2000) find that households who trade stocks more have a lower net return and attribute this pattern to irrationality, specifically overconfidence. In contrast, we find that household financial choices generated from a dynamic optimization problem with rational agents and portfolio adjustment costs can reproduce the observed distribution of household turnover rates as well as the observed pattern that households with the highest turnover rates have the lowest net returns. Various forms of irrationality, modeled as beliefs about income and return processes that are not data based, do not improve the ability of the baseline model to explain these turnover and net return patterns.
Essays On Dynamic Life Cycle Behavior With Heterogeneous Agents
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Author : Marios Karamparmpounis
language : en
Publisher:
Release Date : 2012
Essays On Dynamic Life Cycle Behavior With Heterogeneous Agents written by Marios Karamparmpounis and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Income categories.
"In each of the following chapters I employ macroeconomic models in order to analyze the life cycle dynamics of working and savings decisions. Chapter 1 builds a model to analyze the optimal tax code if workers face differences in their labor supply elasticity. Standard public finance principles imply that workers with more elastic labor supply should face smaller tax distortions. The model quantitatively tests the potential of such an idea within a realistically calibrated life cycle model of labor supply with heterogeneous agents and incomplete markets. Heterogeneity in labor supply elasticity arises endogenously from differences in reservation wages. Older cohorts are much more responsive to wage changes than younger and especially middle aged cohorts. Both a shorter time horizon and a larger stock of savings account for this difference. Since the government does not have direct information on individual labor supply elasticity it uses these life cycle variables as informative moments. The optimal Ramsey tax policy decreases the average and marginal tax rates for agents older than 50 and more so the larger is the accumulated stock of savings. At the same time, the policy increases significantly the tax rates for middle aged workers. Finally, the optimal policy provides redistribution by decreasing tax rates of wealth-poor young workers. The policy encourages work effort by high elasticity groups while targets inelastic middle aged groups to raise revenues. As a result, total supply of labor increases by 2.98% and total capital by 5.37%. These effects translate into welfare gains of about 0.85% of annual consumption. Chapter 2 uses evidence from the Survey of Consumer Finances for the period 1998 in order to study the allocations of savings across safe and risky accounts. Safe assets include among others checking accounts, savings accounts, and money market accounts while stocks, brokerage accounts and trusts and annuities are considered risky. We document three empirical facts: i) The average household holds a low share of risky share. ii) The share of risky assets is disproportionately larger for richer households. iii) The share of risky assets increases in age. Chapter 3 examines how well a life cycle model with portfolio choice can capture the empirical trends analyzed in Chapter 2. The main finding is that standard portfolio-choice theory is hard to reconcile with the empirical facts. We show that a simple life-cycle model with Bayesian learning about earnings ability can bring the model closer to the data. Younger-wealth poor households whose incomes are skewed toward labor earnings face a large amount of risk. To hedge risk they invest in safe financial assets. As households grow older their willingness to invest in risky assets increases partially because their ability is gradually revealed and also because a larger amount of accumulated assets decreases their total risk exposure"--Leaves iv-v.
Essays On Financial Frictions And Macroeconomic Dynamics With Heterogeneous Agents
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Author : Lini Zhang
language : en
Publisher:
Release Date : 2014
Essays On Financial Frictions And Macroeconomic Dynamics With Heterogeneous Agents written by Lini Zhang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.
This dissertation develops dynamic stochastic general equilibrium (DSGE) models in which financial frictions interact with rich household heterogeneity to study the implication of financial shocks for aggregate fluctuations.
Three Essays In Macroeconomics And Finance
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Author : Yang Li
language : en
Publisher:
Release Date : 2022
Three Essays In Macroeconomics And Finance written by Yang Li and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022 with categories.
Chapter 1 develops a continuous-time, heterogeneous agents version of the Barro-Rietz rare disasters model. Following Gabaix (2012), the disaster probability is assumed to be time-varying. The economy consists of two types of agents: (1) a "rational" agent, who updates his beliefs using Bayes Rule, and (2) a "robust" agent, who updates his beliefs using a pessimistically distorted prior. Following Hansen and Sargent (2008), pessimism is disciplined using detection error probabilities. Disaster risk is assumed to be nontradeable. The model is calibrated to US data, and focuses on three disaster episodes: (1) The Great Depression of 1929-33, (2) The Financial Crisis of 2008-09, and (3) The Covid Pandemic of 2020. The key contribution of the paper is to show that the model can replicate the observed spike in trading volume that occurs during disasters. Trading produces endogenous low frequency dynamics in the distribution of wealth. The relative wealth of robust agents gradually declines during normal times, but rises sharply during disasters. These results sound a note of caution when interpreting short-run movements in the distribution of wealth. Chapter 2 examines the market selection hypothesis in a continuous time asset pricing model with jumps. It is shown that the hypothesis is valid when agents have log preferences. The result is robust as it does not depend on whether markets are incomplete. Jumps affect long-run wealth dynamics through a redistribution channel: Disasters lead to large wealth redistribution as agents with heterogeneous beliefs about disasters have different exposures to risky assets. Using tools from ergodic theory, I prove a novel result that generalizes the rationality concept in the existing literature: an agent endowed with the optimal filter will outperform other agents in complete financial markets asymptotically. Chapter 3, a joint paper with Xiaowen Lei, develops a continuous-time overlapping generations model with rare disasters and agents who learn from their own experiences. Using microdata about household finance in China, we establish that economic disasters such as the Great Leap Forward make investors distrustful of the market. Generations that experience disasters invest a lower fraction of their wealth in risky assets, even if similar disasters are not likely to occur again during their lifetimes. "Fearing to attempt" therefore inhibits wealth accumulation by these "depression babies" relative to other generations.
Essays In Macroeconomics
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Author : Annika Bacher
language : en
Publisher:
Release Date : 2022
Essays In Macroeconomics written by Annika Bacher and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022 with categories.
This thesis is composed of three independent essays in heterogeneous agent macroeconomics. They all explore how family structure affects investment choices and labor market outcomes of individuals. The first chapter, Housing and Savings Behavior Across Family Types, studies how family structure in the form of marital status and changes thereof affect housing demand. I develop a life-cycle model of housing and financial portfolio choice with dynamic and heterogeneous family types that I calibrate to household survey data from the United States. My findings indicate that divorce risk encourages precautionary savings of couples and reduces their demand risky assets and for indivisible housing. Prospective marriage, lower income levels and larger exposure to income fluctuations prevent singles from becoming homeowners. As a result, abstracting from distinct family types overstates the effectiveness of housing policies such as lowering property taxes and reducing housing transaction costs by up to over 100%. This misspecification is largest among young households, who are most likely to be single and whose marital transition risk is highest. In contrast, regulations that facilitate stock market participation help to foster wealth accumulation, because they encourage investment in high return assets that are cheaper to liquidate in the event of a marital or labor income shock. In the second chapter, The Gender Investment Gap over the Life-Cycle, I document with data from the Survey of Consumer Finances that single women hold on average less risky portfolios than single men. To understand the sources of this "Gender Investment Gap", I develop a life-cycle model of portfolio choice that allows for gender differences along observable characteristics and stochastic processes. The model is able to replicate the empirical patterns without introducing gender heterogeneity in preferences. Counterfactual simulations reveal that lower income levels and larger household sizes (mainly through the presence of children) of single women make it optimal for them to invest less risky. Hence, the gender wage gap gets amplified because it results in investment behavior that pays on average lower returns. Importantly, not only current-period income levels and number of household members help to explain this finding but also expectations over their future realizations. The third chapter, Joint Search over the Life-Cycle, co-authored with Philipp Grübener and Lukas Nord, focuses on labor market outcomes and couples. Specifically, we study how intra-household insurance against individual job loss through increased spousal labor market participation, also called the added worker effect, varies over the life cycle. First, we show in U.S. data that the added worker effect is much stronger for young than for old households. A stochastic life cycle model of two-member households with job search in a frictional labor market is capable of replicating this finding. The model suggests that a lower added worker effect for the old is driven primarily by better insurance through asset holdings. Human capital differences between employed young and old contribute to the difference but are quantitatively less important, while differences in job arrival rates play a limited role.
Essays In Household Finance And Macroeconomics
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Author : Franco Zeccchetto
language : en
Publisher:
Release Date : 2017
Essays In Household Finance And Macroeconomics written by Franco Zeccchetto and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with Economics categories.
In the first chapter, we analyze the removal of the credit-risk guarantees provided by the Government Sponsored Enterprises (GSEs) in a model with agents heterogeneous in income and house price risk. We find that wealth inequality increases, driven by higher mortgage spreads and housing rents. Housing holdings become more concentrated. Foreclosures fall. The removal benefits high-income households while hurting low and mid-income households (renters and highly leveraged mortgagors with conforming loans). GSE reform requires compensating transfers, sufficiently high elasticity of rental supply, or linking GSE reform with the elimination of the mortgage interest deduction.
Essays In Household Finance And Housing Economics
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Author : Cindy K. Soo
language : en
Publisher:
Release Date : 2013
Essays In Household Finance And Housing Economics written by Cindy K. Soo and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with categories.
Essays On Dynamic Markets With Heterogeneous Agents
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Author : Borghan Nezami Narajabad
language : en
Publisher:
Release Date : 2007
Essays On Dynamic Markets With Heterogeneous Agents written by Borghan Nezami Narajabad and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Competition categories.
Dynamic Economy With Heterogeneous Agents
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Author : Yulei Peng
language : en
Publisher:
Release Date : 2013
Dynamic Economy With Heterogeneous Agents written by Yulei Peng and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with categories.
This dissertation consists of three essays about heterogeneous agents in the dynamic economy and how to deal with the asymmetric information arose by heterogeneity. Firstly, I consider the optimal taxation issue in a dynamic endogenous growth model with considering human capital accumulation, and agents ability is heterogeneous and private information. Moreover, the agents with higher ability have positive external effects on others. By using the two-sector endogenous model, I show that it is optimal to impose different income and capital income taxes on people with different abilities. Specifically, positive marginal income tax is adopted for people with lower ability while no tax is imposed for people with higher ability; marginal capital income tax is zero whatever the agent's is low or high. As for people using the capital and labor for human capital accumulation, the government should subsidize them whatever their ability is. Secondly, I study the optimal monetary and fiscal policy with heterogeneous agents based on the search-theoretical environment where money is essential and consider the private information. I first solve the households' problem in the centralized and decentralized market, and find out the optimal conditions. Then, in this section, I describe the problem that social planner faces by involving uncertainty and agents whose types are continuous. By comparing the optimal conditions in this generous setting, I show that the Friedman rule is no longer optimal when jointed with nonlinear taxation of income. Moreover, the capital income taxation is not zero. Moreover, I constructs a general theoretical model to consider two kinds of financial frictions in the economy with financial intermediaries. By quantitative analysis the model with three separate shocks which are a negative collateral shock, a negative productivity shock and a positive shock to bankers' divert rate, I find that a negative collateral shock which tightens firms' financing constraints on investment can generate an equity price boom which is different from what is observed in recessions. Therefore, the collateral shock is not the main reason for the business cycle, while the negative productivity shock and bankers' moral hazard problem are more important aspects to explain current economy. The electronic version of this dissertation is accessible from http://hdl.handle.net/1969.1/151328