We tackle two important theoretical problems in macroeconomics and international economics. First, in macroeconomics, especially monetary economics, the models with a standard Taylor rule have multiple equilibria. This multiplicity is problematic since we do not have a theory to determine a price level. We propose a theory to pin down...
This dissertation contains three chapters on two broad topics in labor economics: the determinants of early career outcomes and the impact of an aging population (and related policies). The first chapter investigates how the retirement slowdown among older Americans has affected the labor market prospects of younger Americans in recent...
I study how electricity generation firms exert market power, raising price above marginal cost. Typical studies of market power in electricity markets focus on how firms sustain markups in the short-run energy market. I explore other channels electricity generation firms use to strategically maximize profits. First, I analyze strategic investments...
This dissertation studies the forces that drive the allocation of patients to hospitals in the United States. Even though it seems there is some market discipline in the hospital industry, we observe that many patients go to hospitals far from the quality frontier and we still do not have a...
The first two chapters of my thesis are related to health economics, and explore how individual decisions affecting health can be impacted by different factors, including by government policy. The third chapter of my thesis (coauthored with Heyu Xiong) focuses on public economics in the Chinese context.
>In the first...
In the first chapter of my dissertation, I study the effects of an exogenous increase in government spending in models incorporating price and wage nominal rigidities. I find that the effects of price stickiness on the output multiplier depend crucially on the behavior of the monetary authority. If the monetary...
This dissertation develops dynamic models to examine markets with product differentiation where both firm conduct and consumer behavior is jointly influenced by switching costs, network effects and technological innovation. In Chapter 1 I propose a structural model of competition where firms set prices, introduce new products and scrap obsolete models....
This study investigates the causes and welfare consequences of unravelling in two-sided matching markets. "Unravelling" arises when agents contract with one another at an early stage, before much of the relevant information is available. Such early matches may lead to ex-post inefficiencies and are perceived as socially harmful. This study...