This dissertation studies three distinct problems in econometrics. Chapter 1 proposes an adaptive randomization procedure for two-stage randomized controlled trials. The method uses data from a first-wave experiment in order to determine how to stratify in a second wave of the experiment, where the objective is to minimize the variance...
In this dissertation, I cover three different topics in macroeconomics. In Chapter 1, I explore the macroeconomic implications of an increase in business competition and its micro transmission channels. In Chapter 2, I document a rise in savings and cash holdings by non-financial corporations across advanced economies and show that...
This dissertation proposes an oracle efficient estimator in the context of a sparse linear model. Chapter 1 introduces the penalty and the estimator that optimizes a penalized least squares objective. Unlike existing methods, the penalty is differentiable – once, and hence the estimator does not engage in model selection. This...
This dissertation examines three distinct empirical questions in macroeconomics and finance. Chapter 1 studies the reasons why households file for bankruptcy. The debt relief households obtain in bankruptcy provides insurance against wealth losses, but also distorts borrower incentives to repay debt, discouraging lending. Understanding how bankruptcy filings respond to changes...
In the first chapter I introduce the ideas that link selling information to surplus extraction. In my environment the seller may be uncertain about how much the buyer both has already learned before contracting with the seller (belief types) and is able to learn after contracting with the seller (information...
This dissertation explores our understanding of corporate credit ratings. In the first chapter I examine the issue of split ratings. S&P and Moody’s often differ in their initial ratings at bond issuance, producing what is referred to as a split rating. The consensus view in the literature and in practice...
I study three topics in applied microeconomics. My first chapter concerns the effect of daily school start times on academic achievement in Florida. Exploiting the sharp discontinuity in school start time relative to sunrise, I track children who move between schools on either side of the time zone boundary in...
Households in emerging markets hold significant amounts of dollar deposits while firms have significant amounts of dollar debt. Motivated by the perceived dangers, policymakers often develop regulations to limit dollarization. In this paper, I draw attention to an important benefit of dollarization, which should be taken into account when crafting...
Understanding the role of heterogeneity across agents is crucial in predicting how the macroeconomic outcomes are affected by these differences. This dissertation presents three papers in which I study labor market outcomes of different segments of the population according to their choice of education and how labor market characteristics affect...
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...