Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 18 of 18 for “"difference-in-differences analysis"”.
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The impact of peer-to-peer ridesharing on travel mode: Empirical study of Uber effects on travel mode in Seattle
Peer-to-peer ridesharing, as a new travel mode, could be a potential solution to two major transportation issues: congestion and air pollution by reducing inefficient driving and promoting public transit ridership. Uber, as one of the leader transport network company, launched in San Francisco in …
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The Causal Effects of Mandatory Quarterly Earnings Guidance on Corporate Information Environment and Corporate Short-Termism
I examine the causal effects of mandatory quarterly earnings guidance using a regulatory mandate in China that required a subset of listed firms to issue bundled quarterly earnings guidance from 2007 to 2018. A difference-in-differences analysis shows that when these firms are no longer required to …
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Curbing the Epidemic: Evolving Public Health Practices and Implications of Prenatal Syphilis Screening Patterns in Ontario, Canada
Background: Congenital syphilis rates increased significantly between 2018 and 2023 in Ontario, Canada. Timely prenatal syphilis screening is essential for preventing congenital syphilis. We examined the adoption and impact of universal rescreening recommendations on prenatal screening rates and …
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Improving farmers' and consumers' welfare in agricultural supply chains via data-driven analytics and modeling : from theory to practice
The upstream parts of the agricultural supply chain consists of millions of smallholder farmers who continue to suffer from extreme poverty. The first stream of research in this thesis focuses on online agri-platforms which have been launched to connect geographically isolated markets in many …
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The Effect of IFRS Adoption on the Predictive Ability of Aggregate Accruals for Economic Growth
<p>Using aggregate-level difference-in-differences analysis across 34 countries, I find that the extent to which aggregate accruals predict change in Gross Domestic Product (GDP) is greater for countries that adopted International Financial Reporting Standards (IFRS) than for countries that did …
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Essays in financial economics
This thesis consists of three essays in corporate finance and capital markets. The first chapter estimates the effect of competition from low-cost index funds on fees in the money management industry. A difference-in-differences analysis exploiting the staggered entry of index funds finds that …
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Three Essays on Corporate Finance
This thesis comprises three essays on corporate finance. The first study investigates the impact of common ownership on executive mobility by examining how it limits competition in the labor market for top managers. Our difference-in-differences analysis exploiting S&P 500 index additions as …
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Evaluation of Valley Healthcare System Inc. School-Based Health Clinic/Center at Dorothy I. Heights Elementary School in Columbus, Georgia
… (SBHCs) are an important strategy for addressing health disparities and improving educational outcomes among underserved students. In Columbus, Georgia, barriers such as limited insurance, transportation challenges, and provider shortages contribute to unmet health needs, which are linked to …
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State-Supported Postsecondary Merit Aid: Georgia's Helping Outstanding Pupils Educationally (HOPE) Scholarship and Its Effects on Student Schooling Decisions
In 1992, Georgia voters approved the Georgia Lottery for Education Act, which established the Helping Outstanding Pupils Educationally (HOPE) Scholarship program, a state-supported merit-based aid program that provides renewable full scholarships to qualifying Georgia residents who enroll in any of …
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Essays on Sustainability in Agriculture and Food Systems
… from climate change, population growth, and food insecurity. These unprecedented issues leave millions vulnerable to hunger and malnutrition, underscoring the urgent need for a transition toward sustainable agriculture and food systems. The first research stream in this thesis focuses on promoting …
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Investing in Clinical Trials for Older Adults: The Value and Challenges of Older Adult-Specific Clinical Trials
Conducting clinical trials for older adults can address the long-standing issue of the underrepresentation of older adults and the lack of clinical evidence for them. Examining the challenges and the value of such trials could facilitate discussion among trial sponsors on the investment in and the …
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Essays in Gender and Labor Economics
This dissertation investigates the multifaceted labor market outcomes for women, with a particular focus on mothers with young children. The first chapter examines how household bargaining affects childcare expenditure among heterosexual couples with children. Traditional models assume income …
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Towards Health Centered Drug Policy: An Analysis of Past and Developing Drug Policy
Drug criminalization has disproportionately impacted communities of color and has insufficiently addressed substance use disorder and its associated risk of death through overdosing. Decriminalization has the potential to restore justice to communities decimated by traditional U.S. drug policy and …
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The Consolidation of Power through Electoral Engineering
The dissertation is a combination of two distinct parts. Part 1 establishes the theory of the consolidation, while Part 2 applies it empirically by evaluating the effectiveness of electoral engineering at consolidating power. The main contributions of Part 1 are as follows: • The consolidation of …
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Three Studies on Hedging Activities and Managerial Opportunism
… presents three studies on managerial opportunism in hedging activities. The first study examines whether the implementation of mandatory derivative disclosures under Financial Accounting Standard No. 161: Disclosures about Derivative Instruments and Hedging Activities (FAS 161) altered the …
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Three Studies on Hedging Activities and Managerial Opportunism
… presents three studies on managerial opportunism in hedging activities. The first study examines whether the implementation of mandatory derivative disclosures under Financial Accounting Standard No. 161: Disclosures about Derivative Instruments and Hedging Activities (FAS 161) altered the …
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Decision Making and Reform Within the United States Criminal Justice System
<p>The United States Criminal Justice System has undergone massive legislative reform in the past decade. These reforms have prompted a demand to analyze the benefits and potential unintended consequences of proposed policies and legislation. The following dissertation measures policy implications …
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Essays in International and Monetary Economics
The forthcoming chapters delve into monetary and international economics, with a particular focus on the role of uncertainty and risk in driving the strategies of economic agents. They explore the interplay between individual behaviors and macroeconomic trends by leveraging micro data to answer …