Type of Document Dissertation Author Zheng, Zhiyuan Author's Email Address firstname.lastname@example.org URN etd-06232011-134809 Title Three Essays on Econometric Analysis Degree PhD Department Economics Advisory Committee
Advisor Name Title Ashley, Richard A. Committee Chair Parmeter, Christopher F. Committee Co-Chair Du, Pang Committee Member Ge, Suqin Committee Member Haller, Hans H. Committee Member Keywords
- Income Inequality
- Data Sharpening
- Bootstrap Significant Testing
- LSCV Bandwidths
- Health Dynamics
Date of Defense 2011-05-02 Availability unrestricted AbstractThis dissertation consists of three essays on econometric analysis including both parametric and nonparametric econometrics. The first chapter outlines three topics involved and briefly discusses the motivations and methods, as well as some conclusions in each of the following chapters.
Both chapter 2 and chapter 3 are in the field of kernel smoothed nonparametric econometrics. Chapter 2 conducts large volumes of simulations to explore the properties of various methods proposed in the literature to detect irrelevant variables in a fully nonparametric regression framework. We focus our attention to two broadly sets of methods, the least square cross-validated bandwidth selection procedure and the conventional nonparametric significance testing frameworks.
In chapter 3, a bootstrap test statistic is proposed to test the validity of imposing some arbitrary restrictions on higher order derivatives of a regression function. We use data sharpening method to enforce the desired constraints on the shape of the conditional means and then measure the distance between the unrestricted and restricted models. The empirical distribution of the test statistic is generated by bootstrapping and the asymptotic distribution for the bootstrap test statistic is also provided.
The last chapter examines the relationship between population health and income inequality in China. We use a multilevel dynamic panel model to test the absolute income hypothesis, various versions of relative income hypothesis, and health selection hypothesis empirically
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