The first chapter of this dissertation, coauthored with Martin Eichenbaum and Riccardo Bianchi-Vimercati, addresses the question: how sensitive is the power of fiscal policy at the ZLB to the assumption of rational expectations? We do so through the lens of a standard NK model in which people...

This dissertation examines the trading behavior of retail investors using large datasets and both causal inference and structural estimation methods. The study has two main objectives: to understand the heterogeneity across different investors and to quantify the price impacts of various trading...

Public debt and taxation are central concerns of economic policy, with important implications for growth, equity, and stability. This dissertation consists of three essays that examine different aspects of these issues, using a combination of theoretical and empirical methods.The first chapter...

This dissertation consists of three essays that address important questions within the fields of labor economics and public economics. I use advanced empirical methods and a combination of restricted access and public-use data to study the role of inequality in labor markets and wealth.In...

This dissertation studies three markets with regulated prices. I focus on how these regulations shape the behavior of firms along non-price dimensions. Chapter 1 studies the effects of community rating regulations in the US individual health insurance exchange market. In this market, the...

The dissertation examines macroeconomic asymmetries and their implications for monetary policy. In the first chapter, we study a non-linear New Keynesian model with an asymmetry in price-adjustment costs (more severe downward rigidity in prices), and a number of its interesting implications. The...

This dissertation studies several economic questions related to decision making under uncertainty. In the first chapter, I consider the question of to what extent an external observer can infer the underlying information structure by observing an equilibrium action distribution in an incomplete...

Recent years have witnessed a surge in the significance of digital platforms and online retailers. The analysis of digital firms and the industries in which they compete is useful for both furthering general economic knowledge and for informing policy. First, digital firms’ activities...

This dissertation consists of three essays that delve into the intersection of econometrics and macroeconomics. The essays employ econometric tools to investigate various topics related to macroeconomic forecasting and policy-making. The first essay aims to help policy-makers conduct robust...