Back to results

Virginia Tech

Three Essays in Applied Microeconomics

Abstract

dc:description.abstract

This dissertation consists of three research papers in Applied Microeconomics. Each paper uses an econometric technique to analyze a problem related to human behavior. The first paper examines the separate effects of time and location of the School Breakfast Program on participation and consumption of breakfast by elementary school children in northern Nevada. Controlling for potential selection bias and unobserved individual fixed effects with a panel version of the Heckman sample selection model, it is shown that extra time allowed for breakfast leads to an approximately 20% increase in average participation, and the transition from cafeteria to classroom adds another 40% for the typical student. The second paper uses the Hedonic Property Valuation Method to quantify the willingness-to-pay of residents in the Dan River region for three dimensions of an improved food environment---availability, accessibility, and acceptability of food. This paper accounts for potential omitted variables issue in the hedonic analysis by applying a spatial-lag model, and finds an overall negative or null preference of residents in this region for an improved food environment. The third paper investigates the effects of characteristics of human interpreters and images on the accuracy of cloud interpretation for satellite images in an online experiment, using a fractional logit model. The results indicate that an image with higher cloud coverage and/or larger brightness is more likely to receive higher accuracy, and the more time spent on the image and more image completed are also beneficial for improving the accuracy. This paper also uses a logistic regression model to compare the performance of human interpreters to that of an automated algorithm, and finds that human interpreters outperform the automated algorithm for an average satellite image out of our twelve selected images.

Degree

thesis:*
Name thesis:degree_name
Ph. D.
Level thesis:degree_level
doctoral
Discipline thesis:degree_discipline
Economics, Agriculture and Life Sciences
Department dc:contributor.department
Agricultural and Applied Economics
Grantor dc:publisher
Virginia Tech
Year dc:date.issued
2017

Author and committee

dc:creator, dc:contributor.*
Author dc:creator
  • Yu, Ling
Chairs dc:contributor.committeechair
  • Moeltner, Klaus
  • You, Wen
Committee members dc:contributor.committeemember
  • House, Leanna L.
  • Thomas, Valerie A.

Subjects

dc:subject × 3

Rights

dc:rights
Statement dc:rights
  • In Copyright

Identifiers

dc:identifier.*
Dc Identifier Other
vt_gsexam:12730
OAI identifier oai:identifier
oai:vtechworks.lib.vt.edu:10919/78860

Chain of custody

source
Harvested from
Virginia Tech
Base URL
vtechworks.lib.vt.edu/oai/request
Last updated
2026-07-22
Source record
OAI-PMH GetRecord
citation

Yu, Ling. Three Essays in Applied Microeconomics. doctoral thesis, Virginia Tech, 2017. http://hdl.handle.net/10919/78860