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Leaderboards and Student Study Plans: Evidence from a Field Experiment (joint work with Dingyue Liu, Ruth Morales, and Caroline Zhang)

Procrastination is a common occurrence in everyday life, particularly among students. In this paper, we explore the implementation of a gamified leaderboard within an undergraduate economics course to assess its impact on class engagement and procrastination reduction. The leaderboard is integrated within weekly online assignments, auto-graded using an AI-assisted platform. Students achieving a full score and submitting their work earlier are ranked higher on the leaderboard. Our preliminary results suggest that the treated group, i.e., the group exposed to the leaderboard, spends significantly less time on assignments and exhibits earlier completion times relative to the control group. i.e., the group not exposed to the leaderboard. This points to the positive influence of gamified leaderboards on reducing procrastination tendencies and motivating students to complete tasks earlier.

Gunshot Noise and Birth Outcomes (joint work with Michael Topper)

Gun violence is ubiquitous across the United States, with gun-related deaths reaching an all-time high in 2021. The prevalence of gunfire results in loud and potentially stress-inducing sounds, which may adversely affect critical stages of in-utero development. However, gunfire is largely unreported, creating a unique challenge for researchers to understand its consequences. In this paper, we mitigate this shortcoming by leveraging data from ShotSpotter—an acoustic gunshot technology which uses an array of sensors placed on city structures to detect the sound of gunfire. We combine this unique data source with the universe of births in a large California city over a four-year period (2016-2020), each matched to a mother’s residence. Using the variation in gunfire detections from ShotSpotter at the census-block level, we employ a difference-in-differences methodology and find that gunshot noise creates substantial decreases in gestation lengths, resulting in an increase in preterm deliveries. These effects are driven entirely by times of the day when civilians are awake, and are particularly concentrated among mothers with low levels of education. These results suggest that gunshot noise is a major factor contributing to the income inequities in pregnancy outcomes.

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JOB MARKET PAPER: Anti-Black Hate Crimes and Black-White Health Gap

In 2019, hate crimes reported in the United States rose to the highest level in a decade. High exposure to race-motivated violence may induce psychological stress among Black individuals, contributing to racial disparities in health. In this paper, I conduct two separate yet complementary studies that document the adverse effects of anti-Black hate crimes on the health outcomes of Black infants and adults. First, I leverage a rich data set consisting of all nationwide birth records from the National Center for Health Statistics to show that in utero exposure to local anti-Black aggravated assaults is associated with lower birth weights and shorter gestation lengths among Black infants. These effects are substantial. For Black infants, exposure to eleven or more anti-Black aggravated assaults during gestation is linked to an over 70 gram decrease in birth weight. Second, using restricted-access Emergency Department Data from the California Department of Health Care Access and Information, I find a nearly 50% increase, relative to the mean, in the volume of chest pain-related Emergency Department visits among Black adults on the day of an anti-Black aggravated assault in their area of residence. In contrast to these results, I report that the effects on White infants and adults are negligible in magnitude and largely insignificant. Taken together, this suggests that stress associated with exposure to local anti-Black hate crimes may be a contributor to the racial health disparities present in the United States.

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Talk 1 on Relevant Topic in Your Field

This is a description of your talk, which is a markdown files that can be all markdown-ified like any other post. Yay markdown!

Conference Proceeding talk 3 on Relevant Topic in Your Field

This is a description of your conference proceedings talk, note the different field in type. You can put anything in this field.


ECON 10A: Intermediate Microeconomic Theory and ECON 107A: History of Economics

Teaching Assistant, UC Santa Barbara

I led in-person discussion sections with up to 25 undergraduate students and held in-person and Zoom office hours. I graded exams and essay assignments as well as proctored exams.

Fall 2018, Winter 2029, Spring 2019, Fall 2019, Winter 2020, Spring 2020

ECON 10A: Intermediate Microeconomic Theory and ECON 5: Statistics for Economics

Head Teaching Assistant, UC Santa Barbara

I coordinated a team of up to 17 Teaching Assistants, serving over 700 students. I facilitated the switch to remote learning during COVID-19 pandemic (set up Zoom discussion sections and office hours, implemented online assignments and exams). I created grading rubrics and led exam grading sessions to ensure inter-grader consistency. I also facilitated the transition from ParScore to GradeScope for grading of multiple-choice exam questions. Lastly, I set up and administered Moodle and Canvas course pages as well as managed email communication with students.

Summer 2020, Fall 2020, Winter 2021, Spring 2021, Winter 2022, Spring 2022, Summer 2023, Fall 2023

ECON 5: Statistics for Economics

Instructor of Record and Course Co-Author, UC Santa Barbara

I prepared course materials (pre-recorded online lecture videos using Panopto, homework assignments) for a new course in introductory statistics, together with 3 graduate student colleagues and a faculty supervisor. I moderated interactive, in-person lecture activities for up to 50 students and led in-person review sessions for up to 600 students. I also created multiple-choice and open-response exam questions and proctored in-person exams with up to 600 students. Finally, I collaborated with Disabled Student Program (DSP) advisors to ensure appropriate accommodations for DSP students.

Fall 2021, Summer 2022, Fall 2022, Spring 2023

INT 93LS: Pain and Prejudice - The Role of Discrimination in Generating Disparities in Health

Instructor of Record and Course Author, UC Santa Barbara

I designed an original, undergraduate-level summer course discussing the social scientific scholarship on the status and origins of health inequities in the United States. I evaluated applications for the course, selecting a cohort of 30 students. I also recruited, designed ASE contracts for, and coordinated a team of two Teaching Assistants. Throughout the course, I mentored student groups working on empirical research projects related to health disparities.

Summer 2023