Leonard Goff
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View article: Identification of Causal Effects with a Bunching Design
Identification of Causal Effects with a Bunching Design Open
We show that causal effects can be identified when there is bunching in the distribution of a continuous treatment variable, without imposing any parametric assumptions. This yields a new nonparametric method for overcoming selection bias …
View article: Inference on the value of a linear program
Inference on the value of a linear program Open
This paper studies inference on the value of a linear program (LP) when both the objective function and constraints are possibly unknown and must be estimated from data. We show that many inference problems in partially identified models c…
View article: Testing Identifying Assumptions in Parametric Separable Models: A Conditional Moment Inequality Approach
Testing Identifying Assumptions in Parametric Separable Models: A Conditional Moment Inequality Approach Open
In this paper, we propose a simple method for testing identifying assumptions in parametric separable models, namely treatment exogeneity, instrument validity, and/or homoskedasticity. We show that the testable implications can be written …
View article: When does IV identification not restrict outcomes?
When does IV identification not restrict outcomes? Open
Many identification results in instrumental variables (IV) models hold without requiring any restrictions on the distribution of potential outcomes, or how those outcomes are correlated with selection behavior. This enables IV models to al…
View article: Identifying causal effects with subjective ordinal outcomes
Identifying causal effects with subjective ordinal outcomes Open
Survey questions often ask respondents to select from ordered scales where the meanings of the categories are subjective, leaving each individual free to apply their own definitions in answering. This paper studies the use of these respons…
View article: Treatment Effects in Bunching Designs: The Impact of Mandatory Overtime Pay on Hours
Treatment Effects in Bunching Designs: The Impact of Mandatory Overtime Pay on Hours Open
This paper studies the identifying power of bunching at kinks when the researcher does not assume a parametric choice model. I find that in a general choice model, identifying the average causal response to the policy switch at a kink amou…
View article: Essays in Applied Econometrics and Labor Economics
Essays in Applied Econometrics and Labor Economics Open
Recent decades have seen great advances in the methods we use to understand cause and effect in the world of work. Building on that tradition, this dissertation explores two broad topics in econometrics as tools to address specific questio…
View article: A Vector Monotonicity Assumption for Multiple Instruments
A Vector Monotonicity Assumption for Multiple Instruments Open
When a researcher combines multiple instrumental variables for a single binary treatment, the monotonicity assumption of the local average treatment effects (LATE) framework can become restrictive: it requires that all units share a common…
View article: INEQUALITY OF SUBJECTIVE WELL‐BEING AS A COMPREHENSIVE MEASURE OF INEQUALITY
INEQUALITY OF SUBJECTIVE WELL‐BEING AS A COMPREHENSIVE MEASURE OF INEQUALITY Open
The link between happiness and overall inequality is best studied using an index that incorporates different aspects of inequality, and is measured consistently in different countries. One such index is the degree to which happiness itself…
View article: Should We Treat Data as Labor? Moving Beyond 'Free'
Should We Treat Data as Labor? Moving Beyond 'Free' Open
In the digital economy, user data is typically treated as capital created by corporations observing willing individuals. This neglects users' role in creating data, reducing incentives for users, distributing the gains from the data econom…
View article: Interactions Between Family and School Environments: Evidence on Dynamic Complementarities?
Interactions Between Family and School Environments: Evidence on Dynamic Complementarities? Open
This paper explores whether conditions during early childhood affect the productivity of later human capital investments.We use Romanian administrative data to ask if the benefit of access to better schools is larger for children who exper…
View article: Inequality of Subjective Well-Being as a Comprehensive Measure of Inequality
Inequality of Subjective Well-Being as a Comprehensive Measure of Inequality Open
The link between happiness and overall inequality is best studied using an index that incorporates different aspects of inequality, and is measured consistently in different countries.One such index is the degree to which happiness itself …