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Evolution of Wealth and Consumption in the Aftermath of a Major Natural Disaster

By Ralph Lawton   

Natural disasters can have catastrophic personal and economic effects, particularly in low-resource settings. Major natural disasters are becoming more frequent, so rigorous understanding of their effects on long-term economic wellbeing is fundamentally important in order to mitigate their impacts on exposed populations. In this paper, I investigate the effects of the 2004 Indian Ocean tsunami on real consumption and assets at the individual level. I also examine the heterogeneity of those impacts, and the related effects on inequality. Taking individual-specific heterogeneity into account with fixed effects, I find individuals living in heavily damaged areas experience major declines in real consumption and assets, and do not recover in the long term. These results are strikingly different than results that do not consider price effects, as well as previously published macroeconomic results. I also find significant heterogeneity by age, education-level, pre-tsunami socioeconomic status, and whether an individual went into a refugee camp. The tsunami resulted in large, long-term declines in asset inequality, and a temporary increase in consumption inequality that returns to near pre-tsunami levels in the long run.

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Advisors: Professor Duncan Thomas, Professor Michelle Connolly | JEL Codes: D1, D15, H84

The Pen or the Sword: Determining the Effects of Different Types of Coups D’état on Income Inequality

By Jie Wei Chia

Existing literature on the relationship between income inequality and coup d’états focus on how the former cause the latter. No research has yet been done on how coup d’états affect income inequality after their occurrence. This study uses crosscountry panel data and fixed effects with instrumental variables models to examine the impact of successful armed coups, successful unarmed coups, failed armed coups and failed unarmed coups. I find that, on average, none of these coups have a significant impact on the Gini coefficient and the income share of the poorest quintile of a population relative to the richest quintile, save for successful armed coups when the subsample of data from 19912013 was used.

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Advisor: Duncan Thomas, Timur Kuran | JEL Codes: D7, D74 | Tagged: Coups, Inequality, Political Economy

The Professor and the Coal Miner: The effect of socioeconomic and geographical factors on breast cancer diagnosis and survival outcome

By Shelley Chen

Previous studies reported that patients who live farther from cancer centers do not necessarily experience delayed cancer detection and shortened survival. However, the results are biased because of the incomplete observation of patient survival, which cannot be properly accounted for with the multivariable regression model. In this thesis, I isolated the effect of the breast cancer patient’s distance to a comprehensive cancer center on the stage of diagnosis and survival using the Cox Proportional Hazards model. I linked data from the Kentucky Surveillance, Epidemiology, and End Results 18, the Kentucky Life Tables, and the Kentucky Area Health Resource Files and identified 37654 patients diagnosed with breast cancer. I estimated the effect of distance on marginal probability of cancer mortality, controlling for non-cancer related death, socioeconomic status, and demographic factors in patients. After controlling for covariates, travel distance between the patient and the nearest comprehensive cancer center was statistically significantly on the breast cancer mortality probability, but not on the stage of diagnosis. In the Kentucky population, patients who were located farther from comprehensive cancer centers experience an increased marginal probability of mortality (proportional hazard = 1.004; 95% CI: [1.000502 1.007311]). The linkage of SEER 18 and AHRF data provided more comprehensive information on the socioeconomic risk factors of cancer mortality than past study datasets. For the stage of diagnosis, a low physician to population ratio and high county-level Medicaid coverage were associated with more advanced stages of diagnosis. In turn, a more advanced stage of diagnosis, lower physician to population ratio, and identification as African American increased the marginal probabilities of mortality.

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Advisor: Charles Becker, Kent Kimbrough | JEL Codes: I1, I13, I14 | Tagged: Breast Cancer, Cancer Mortality, Health Outcomes, Inequality, Socioeconomic, Stage


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