Middle childhood is an important but often overlooked developmental period. Similarly, a large literature examines the importance of child care as a developmental context, focusing almost exclusively on pre-school child care experiences. Through three related empirical studies, this dissertation aims to address these two gaps in the extant literature. These...
The first chapter of this dissertation investigates the pricing of systematic variance risk in the equity options market. Cross sectional tests on synthetic variance swap returns reveal no evidence of a negative market variance risk premium. Furthermore, we show that a class of linear factor models cannot simultaneously explain index...
In the age of what George W. Bush has called a global democratic revolution, the freedom to consume an ever-expanding variety of images and goods in the global marketplace is often equated with the conditions of democratic freedom. With just such rhetorical elisions in mind, this dissertation examines the discursive...
Until the late twentieth century, the American small town at the turn of the century was popularly conceived as the quintessential nostalgic object: an "ideal" moment of lost "innocence," albeit one never existing in reality. This conception is belied, however, by my study of its representation in film and television...
Preventing the build-up of indoor pollutants represents an emerging goal in environmental chemistry. Heterogeneous catalysis provides an attractive method of remediating indoor air pollution, but optimization through rational catalyst design requires a detailed understanding of the catalytic surface and surface-pollutant interactions. In this work, a chemical ionization mass spectrometry (CIMS)...
Packaging of DNA into nucleosomes and chromatin not only enables DNA to fit within the nucleus, but it also protects and organizes DNA. However, the wrapping of DNA around histones occludes DNA from binding proteins in solution. Proteins that regulate, express and repair DNA are able to function only when...
What is the nature of the relation between a verb and its arguments? In this dissertation, I look to evidence from language acquisition for answers.
Any theory of ditransitives must explain certain structural asymmetries noted for both double-object (DO) datives (e.g. Alfonso gave Derek the bat) and prepositional datives (Alfonso...
This work investigates children's early semantic representations of gradable adjectives (GAs) and proposes that infants perform a probabilistic analysis of the input to learn about abstract differences within this category. I first demonstrate that children as young as age three distinguish between relative (e.g., 'big', 'long'), maximum standard absolute (e.g.,...
Nelson and Staum derived ranking-and-selection procedures that employ control-variate (CV) estimators instead of sample means to obtain greater statistical efficiency. However, control-variate estimators require more computational effort than sample means, and effective controls must be identified. In this dissertation, we present a new CV screening procedure to avoid much of...
This thesis contains four essays on the organization (both internal and external) of health care in the US. The first essay examines a mechanism through which individual workers acquire (or maintain) competence, namely that of experience. Specifically, I analyze whether cardiac surgeons who perform more procedures experience an improvement in...