Two-dimensional (2D) materials and heterostructures have attracted significant attention for a variety of nanoelectronic and optoelectronic applications. At the atomically thin limit, the material characteristics and functionalities are dominated by surface chemistry and interface coupling. Therefore, methods for comprehensively characterizing and precisely controlling surfaces and interfaces are required to realize...
This thesis consists of three chapters: two are empirical studies of policy design in small-business lending markets, while the final is a large-scale retrospective of retail mergers. Chapter 1 examines moral hazard in loan guarantee programs. To address credit constraints in small-business lending markets, policymakers frequently rely on loan guarantees,...
In the Maximum-a-Posteriori (MAP) Inference problem, for any given probability distribution, the goal is to find the point in the support of that distribution with the highest probability. Potts models and Determinantal Point Processes (DPPs) are probabilistic models that were introduced in the context of statistical physics several decades ago....
Throughout history, the development of materials has relied heavily on the empirical judgment of scientists and engineers and on prolonged experiments proton to errors. Due to the complexity of material behavior, successful discovery of new candidates has been serendipitous, and down-selection of candidates remains a time-consuming process that requires repetitive...
As machines take over the work of producing, organizing, and curating culture, it becomes increasingly important to examine the influence of algorithms in public memory work, through which the past is selectively and subjectively reconstructed to make meaning in the present. Accordingly, this dissertation intervenes at the intersection of public...
In my dissertation I explore several applications of collective household models with limited commitment to study the behavior of singles and couples in the modern US marriage markets in presence of endogenous risk of divorce. In the first chapter, I show that the model is capable of rationalizing the patterns...
Natural gas is likely to become one of the main sources of carbon-based chemicals in the next century due to rapidly increasing natural gas production levels. This has created new incentives to find materials that are active and selective towards alkane partial oxidation reactions that are relevant for natural gas...
The dissertation consists of three self-contained papers. In Chapter 1, we study the inventory management problem in a dual sourcing system, where there are two supply sources or modes with different sourcing costs and lead times. We provide closed-form solutions to a robust optimization model for inventory management in a...
We prove the Rigidity Conjecture of Goette and Igusa, which states that, after rationalizing, there are no stable exotic smoothings of manifold bundles with closed even dimensional fibers. The key ingredients of the proof are fiberwise Poincaré–Hopf theorems generalizing earlier such results about the Becker–Gottlieb transfer. These theorems show how...
This dissertation is divided into three chapters. Chapter one studies changes in market concentration and productivity growth in the United States from the 1990s to the 2010s. Chapter two measures the impact of a banking crisis, the British Panic of 1825, on non-financial firms. Chapter three examines how women's employment...
Cancer is a top leading cause of deaths worldwide, among which pancreatic cancer and liver cancer are top leading cause of cancer-related deaths. Despite recent developments in cancer treatment, pancreatic and liver cancers still have a high mortality and low life expectancy, especially when diagnosed at advanced stages. Earlier cancer...
This dissertation explores the reciprocal relationship between international politics and digital computation since the 1960s by examining the first attempts to use computer simulation to credibly forecast our planet’s economic and environmental future on a global scale. In particular, this project offers the first sustained historical analysis of the origins...
This dissertation investigates how US Americans in the nineteenth century began to apply the category of religious fanaticism to individuals and communities deemed dangerous. Contributing to scholarship on secularism, racial governance, and American religious history, this dissertation argues that fanaticism is not a neutral category of description. It tracks how...
A core problem in many computer vision applications is visual recognition (including object classification, detection and localization). Recent advances in artificial neural networks (aka ”deep learning”) have significantly pushed forward the state-of-the-art visual recognition performances. However, due to the lack of semantic structure modeling, most current deep learning approaches do...
The fact that informational asymmetries impose a significant barrier in path of smooth functioning of markets has been well known in Economics since the 1970s. Communication and information exchange allow to mitigate these barriers to a certain extent. The existing Economic literature allows to get a good grasp of static...
The unique ability of plasmonic nanoparticles to localize and enhance resonant electromagnetic fields has enabled a wealth of discoveries from enhanced spectroscopies to driving chemical reactions on the nanoscale. In this thesis, we strive to both drive and observe chemistry on plasmonic surfaces. First, we examine the possibility of driving...
Nature and Civilization is a focused interpretation of Kant’s politics insofar as it bears on the distinction between nature and civilization. It seeks to answer the question, How is Kant’s distinction between nature and civilization informing his global political thought? Kant thinks that in moving from the state of nature...
The prospect of being evaluated by others is oftentimes psychologically crippling. At the core of feeling evaluated is perceiving other minds capable of possessing (judgmental) thoughts and feelings. While research on mind perception in evaluative situations oftentimes examines positive aspects (e.g., increased prosocial behavior), this dissertation looks into how mind...
This dissertation studies three aspects of healthcare market regulation.
Chapter 1 studies the optimal design of quality scores for health insurance plans. Regulators often generate quality scores to help consumers with limited information about product quality, as in schooling, healthcare, and financial markets. When designing scores, regulators must not only...
In the nineteenth century, Jews across Europe entered a period of emancipation, at best a vaguely defined term that indicated the granting of equal civil and political rights, though sometimes conditionally and often incrementally. Concurrent to this, art music was dominated by deep divisions of stylistic and aesthetic approaches to...