VictorJuiz/thesis huggingface dataset:
Empirical Essays on Poverty, Inequality, and Social Welfare

This thesis consists of three empirical chapters related to distributional outcomes, such as poverty and inequality, in three different contexts. Chapter 1 outlines a class of statistical procedures that permit testing of a broad range of multidimensional stochastic dominance hypotheses. We apply the procedures to data on income and leisure hours for individuals in Germany, the UK, and the USA. We find that no country first-order stochastically dominates the others in both dimensions for all years of comparison. Furthermore, while in general the USA stochastically dominates Germany and the UK with respect to income, in most periods Germany stochastically dominates with respect to leisure hours. Finally, we find evidence that bivariate poverty is lower in Germany than in either the UK or the USA. On the other hand, poverty comparisons between the UK and the USA are sensitive to the subpopulation of individuals considered. Chapter 2 provides a detailed description of the evolution of income inequality in Vietnam between 1993 and 2006. We construct consistent estimates of annual household income using five nationally representative household surveys. Our main finding is that Vietnam’s rapid growth was accompanied by a reduction in inequality between 1993 and 2002 and an unchanged level of inequality between 2002 and 2006. We find that strong growth in employment income and robust growth of cropping income played an important role in decreasing rural inequality, while the growth of wage income and the stagnation of household business income similarly contributed to the reduction in urban inequality. Chapter 3 examines the impacts of the 2001 U.S.-Vietnam Bilateral Trade Agreement on provincial poverty level in Vietnam. My main finding is that provinces that were more exposed to the U.S. tariff cuts experienced faster decreases in poverty between 2002 and 2004. I subsequently explore three labour market channels from the trade agreement to poverty alleviation. Provinces that were more exposed to the tariff cuts experienced (1) increases in provincial wage premiums for low-skilled workers, (2) faster movement into wage and salaried jobs for low-skilled workers, and (3) more rapid job growth in formal enterprises.

Keywords: Poverty
Inequality
Social Welfare
Advisor: Brandt, Loren
Recasting Troy in Fifth-century Attic Tragedy

This thesis examines the characterization of Trojans in fifth-century Attic tragedy with a particular focus on their ability to shed light on the contemporary Athenian sense of identity. I argue against the notion that Trojans are displaced Persians, for they maintain a strong connection to their mythological heritage. The evidence I present draws on fifth-century Attic tragedies but also on the Iliad, iconography, and fragmentary tragedies. My discussion of passages from the Iliad creates a context for interpreting Trojan characters in fifth-century tragedy by establishing the tradition that tragedians could draw on as the background against which to set their Trojan characters. The iconographic evidence similarly adds depth to the project by stepping away from a textual focus to create a wider understanding of how Trojans were visually conceptualized. The fragmentary tragedies provide a tantalizing glimpse into the portrayal of Trojan men, who are otherwise almost entirely absent from tragedies. As a result, my discussion of tragedy focuses on Trojan women, and I suggest that they are representatives of an idealized culture designed to evoke an idealized sense of Athenian cultural identity. I examine Euripides’ Andromache to compare the portrayal of Spartans, contemporary fifth-century Athenian enemies, with that of Trojans to demonstrate the differences between them. Following that, I address the gendered nature of the aftermath of the Trojan War by focusing on one particularly feminine theme in each of three plays: exchange in Andromache, nostalgia in Trojan Women, and mourning in Hecuba. Finally, I discuss the role played by class in considering Trojan characters. Only Euripides’ Orestes presents a (male) character who was a slave in Troy before the fall, and this provides an excellent opportunity to contrast the treatment of that character with the treatment of the royal Trojan women. The purpose of this examination of Trojan characters is to demonstrate that there was an intellectual curiosity about them and their role in contemporary society. I argue in favour of a sympathetic treatment of Trojan characters, or more specifically, against the notion of a “Phrygianization of Troy,” and restore to the Trojans their own unique identity.

Keywords: Greek Tragedy
Troy
Trojan War
Identity
Trojan Women
Advisor: Revermann, Martin
Stylizing Lives: Selected Discourses in Instrumental Music Education

As a social practice, being part of the school band stylizes our lives—individually and collectively. The pedagogical band world, a world made up primarily of school and university wind bands, is in many ways similar to the world of community/civic bands of the late nineteenth and early twentieth centuries. Based on an examination of professional discourses, however, I argue that processes of institutionalization have altered the nature of music making via band participation. The pedagogical band world, like other bounded worlds, operates according to what Michel Foucault calls “regimes of truth”—the regulative norms that delimit what can be said and done. The specific ways in which the subject is fashioned, in other words, are a function of the truths we endorse about ourselves and, in the present case, about music making. Studying the discourses in the disciplinary practice of large ensemble (band) music making is of paramount importance for music educators to better understand the effects of disciplinary practices. Employing a conceptual framework based on the work of Michel Foucault, the following question guided this inquiry: “What ‘regimes of truth’ are fashioned in school music (bands) discourse, how did they come to be, and what are their potential effects on the subject?” Methods from the field of corpus linguistics were used to concordance the journal of the Canadian Band Association, 1978-2008. Concordance lists were used to introspectively examine each occurrence (approximately 25,000 in total) of a downsampled set of words related to subject formation in order to generate statements making truth claims. While there is no mistaking that a primary goal in music education discourse is to foster a “love of music,” this investigation suggests the kind of musicality fashioned in today’s pedagogical discourse has become a relationship to music (based on the study of music; music as something to know) rather than the kind of relationship fashioned in band participation in the late nineteenth and early twentieth centuries, which I describe as a relationship with music (music as something to do).

Keywords: music education
discourse
Foucault
philosophy
instrumental music
band
Advisor: Gould, Elizabeth
Governing Immunization in Canada

Modern immunization’s role in health systems is threefold: it is simultaneously a pharmaceutical product, a personal health care intervention, and a public health measure, each constituting a distinct, yet overlapping set of governance arrangements. This thesis examines immunization policy change and governance at the federal-provincial interface over the last decade (1997-2008) in Canada, situated against broader trends in public policy and public health. The research is based upon a case study design and a discursive approach to policy analysis, using documentary sources, supplemented with archival information, direct observations, and decision-maker informants. Over time, structures and instruments used to deal with immunization at the federal-provincial interface have undergone adaptation. New decision-making structures include the Public Health Agency of Canada and the Pan-Canadian Public Health Network; new instruments include the National Immunization Strategy, accompanied by targeted federal funding. Consistent with other sectors, however, the decade also witnessed an ongoing emphasis on fiscal prudence, risk-based regulation, and informal networks to accomplish policy goals. This thesis concludes that effective federal governance and lasting policy change for immunization requires resolution of two major tensions in the policy ideas underlying national processes. First, the interpretation of federal authority over matters of national concern remains ambiguous. While the National Immunization Strategy reflected dominant ideas around equitable access to vaccines and a broad conception of the federal sharing community, persistent gaps, particularly linking national-level decisions, financing, and delivery, have reinforced the existing notion of the appropriate degree of federal influence for immunization, rather than expanding it. Second, an increasing focus on personal security dimensions of immunization amid structural changes intended to address public security concerns is in tension with a situation that predisposes the state to avoid an unjust application of compulsory measures rather than to protect from harm those individuals who consent freely to immunization. Immunization in Canada requires a new paradigm that expands the notion of the state’s role in prevention as it applies to immunization, that addresses specific needs for protection in the life of the individual, and that reasserts the importance of strong, substantive, and sustained federal contributions to matters of national concern.

Keywords: public health
public policy
immunization
Canada
Advisor: Deber, Raisa Berlin
Stochastic Control of Time-varying Wireless Networks

One critical step to successfully integrate wireless data networks to the high-speed wired backbone is the design of network control policies that efficiently utilize resources to provide Quality of Service (QoS) to the users in the integrated networks. Such a design has remained a challenge since wireless networks are time-varying in nature, not only in terms of user/packet arrivals but also in terms of physical channel conditions and access opportunities. In this thesis, we study the stochastic control of time-varying networks to design efficient scheduling and resource allocation policies. In particular, in Chapter 3, we focus on a broad class of control policies that work based on a pick-and-compare principle for networks with time-varying channels. By trading the throughput for complexity and memory requirement, these policies require less complexity compared to the well-investigated throughput-optimal Generalized Maximum Weight Matching (GMWM) policy and also require only linear-memory storage with the number of data-flows. Through Lyapunov analysis tools, we characterize the stability region and delay performance of the studied policies and show how they vary in response to the channel variations. In Chapter 4, we go into further detail and consider the problem of network control from a new perspective through which we carefully incorporate the time-efficiency of underlying scheduling algorithms. Specifically, we develop a policy that dynamically adjusts the time given to the available scheduling algorithms according to queue-backlog and channel correlations. We study the resulting stability region of developed policy and show that the region is at least as large as the one for any static policy. Finally, motivated by the current under-utilization of wireless spectrum, in Chapter 5, we investigate the control of cognitive radio networks as a special example of networks that provide time-varying access opportunities. We assume that users dynamically join and leave the network and may have different utility functions, or could collaborate for a common purpose. We develop a policy that performs joint admission and resource control and works for any user load, either inside or outside the capacity region. Through Lyapunov Optimization techniques, we show that the developed policy can achieve a utility performance arbitrarily close to the optimality with a tradeoff in the average service delay of admitted users.

Keywords: Wireless Networks
Control of Wireless Networks
Time-varying networks
Resource Scheduling
Rate allocation
Resource Allocation
Time-varying Channels
Cognitive Radio Networks
Dynamic Population
Advisor: Liang, Ben
Sousa, Elvino Silveira
Sex and Cyberspace: The Internet in the Sexual Lives of Men Who Have Sex With Men

The Men, Internet, and Sex with Men Study was a qualitative inquiry into how men who have sex with men (MSM) use the Internet in their sexual lives. The study responds to calls for HIV prevention to become more resonant with men’s online experiences. Men’s use of the Internet in their sexual lives was explored through structural interactionist and social risk theories. The study was a focused ethnography, drawing on semi-structured interviews with 23 MSM from the Greater Toronto Area. The sample included men aged 20 to 61, from a variety of sexual orientations (gay, bisexual, and heterosexual) and HIV statuses. Data analysis focused on the contextual aspects of men’s use of the Internet for sexual purposes and their sexual risk behaviour. This study focused on how men’s use of the Internet for sexual purposes was situated within and influenced by the contexts of their use. The participants’ online experiences were socially-situated from the outset: men saw the Internet as a “solution” to challenges in their sexual lives; their online interactions were structured by online rules of engagement and discourse from the offline gay community; and their sexual risk behaviour was mediated by social context and sexual interactions. The participants’ stories revealed the existence of an online subculture for sex seeking. Men also talked about the links between their online and offline experiences, where the Internet played a role in developing their sexuality but could also foster isolation and addiction. The men emphasized the importance of online HIV prevention and offered suggestions on how prevention more generally might be improved. The Internet holds both promise and pitfalls for HIV prevention. The findings from this study underline the need for prevention efforts that focus on individual- and structural-level prevention which can respond to men’s experiences both online and offline.

Keywords: HIV/AIDS
Internet
HIV prevention
sexual risk
Advisor: Myers, Ted
Refactoring-based Requirements Refinement Towards Design

Building systems that satisfy the given requirements is a main goal of software engineering. The success of this process relies largely on the presence of an adequate architectural design. Traditional paradigms deal with requirements separately from design. Our empirical studies show that crossing the boundary between requirements and design is difficult, existing tools and methods for bridging the gap inadequate, and that software architects rely heavily on experience, prior solutions, and creativity. Current approaches in moving from requirements to design follow two schools. One is architecture-centric, focused on providing assistance to architects in reuse. The other is requirements-centric, and tends to extend established development frameworks and employ mappings to transition from requirements to architecture. Jackson indicates that clear understanding of requirements (the problem) is crucial to building useful systems, and that to evolve successfully, their design must reflect problem structure. Taylor et al. argue that design is the central activity in connecting requirements and architecture. Nonetheless, existing approaches either overlook underlying structure of requirements or design considerations. This dissertation presents a novel theory enabling requirements structuring and design analysis through requirements refinement and refactoring. The theory introduces a refinement process model operating on four abstraction levels, and a set of refactoring operators and algorithms. The method works in small, well-guided steps with visible progress. The theory provides a basis for designers to analyze and simplify requirement descriptions, remove redundancy, uncover dependencies, extract lower-level requirements, incorporate design concerns, and produce a system decomposition reflecting the underlying problem structure. A design built on top of this decomposition is better suited for evolution than one created without explicit structural analysis. The theory is validated on an industrial-sized project, wherein a suitable system decomposition is produced and a comparison made to a conventionally-devised solution. Examples demonstrate that the theory handles changes incrementally. It is explained how the theory addresses the existing challenges in going from requirements to design and supports fundamental software engineering principles. The method is assessed against common validation criteria. The approach is compared with prominent related work.

Keywords: Requirements Refactoring
Requirements Refinement
Requirements to Architecture
Architecting Requirements
Requirements to Design
Software Architecture
Requirements Engineering
Software Engineering
Advisor: Easterbrook, Steve
Management of Uncertainties in Publish/Subscribe System

In the publish/subscribe paradigm, information providers disseminate publications to all consumers who have expressed interest by registering subscriptions. This paradigm has found wide-spread applications, ranging from selective information dissemination to network management. However, all existing publish/subscribe systems cannot capture uncertainty inherent to the information in either subscriptions or publications. In many situations the large number of data sources exhibit various kinds of uncertainties. Examples of imprecision include: exact knowledge to either specify subscriptions or publications is not available; the match between a subscription and a publication with uncertain data is approximate; the constraints used to define a match is not only content based, but also take the semantic information into consideration. All these kinds of uncertainties have not received much attention in the context of publish/subscribe systems. In this thesis, we propose new publish/subscribe models to express uncertainties and semantics in publications and subscriptions, along with the matching semantics for each model. We also develop efficient algorithms to perform filtering for our models so that it can be applied to process the rapidly increasing information on the Internet. A thorough experimental evaluation is presented to demonstrate that the proposed systems can offer scalability to large number of subscribers and high publishing rates.

Keywords: publish/subscribe
uncertainty
filtering
routing
Advisor: Jacobsen, Hans-Arno
Improvements to Field-Programmable Gate Array Design Efficiency using Logic Synthesis

As Field-Programmable Gate Array (FPGA) capacity can now support several processors on a single device, the scalability of FPGA design tools and methods has emerged as a major obstacle for the wider use of FPGAs. For example, logic synthesis, which has traditionally been the fastest step in the FPGA Computer-Aided Design (CAD) flow, now takes several hours to complete in a typical FPGA compile. In this work, we address this problem by focusing on two areas. First, we revisit FPGA logic synthesis and attempt to improve its scalability. Specifically, we look at a binary decision diagram (BDD) based logic synthesis flow, referred to as FBDD, where we improve its runtime by several fold with a marginal impact to the resulting circuit area. We do so by speeding up the classical cut generation problem by an order-of-magnitude which enables its application directly at the logic synthesis level. Following this, we introduce a guided partitioning technique using a fast global budgeting formulation, which enables us to optimize individual “pockets” within the circuit without degrading the overall circuit performance. By using partitioning we can significantly reduce the solution space of the logic synthesis problem and, furthermore, open up the possibility of parallelizing the logic synthesis step. The second area we look at is the area of Engineering Change Orders (ECOs). ECOs are incremental modifications to a design late in the design flow. This is beneficial since it is minimally disruptive to the existing circuit which preserves much of the engineering effort invested previously in the design. In a design flow where most of the steps are fully automated, ECOs still remain largely a manual process. This can often tie up a designer for weeks leading to missed project deadlines which is very detrimental to products whose life-cycle can span only a few months. As a solution to this, we show how we can leverage existing logic synthesis techniques to automatically modify a circuit in a minimally disruptive manner. This can significantly reduce the turn-around time when applying ECOs.

Keywords: Logic Synthesis
Computer-Aided Design
Field-Programmable Gate Array
Boolean Satisfiability
Binary-Decision Diagram
Advisor: Brown, Stephen
Essays on Environmental Policy, Heterogeneous Firms, Employment Dynamics and Inflation

This thesis covers three issues: the aggregate and welfare effects of environmental policies when plants are heterogeneous; what causes the different patterns of employment dynamics in small versus large firms over business cycles; and the welfare costs of expected and unexpected inflation. In the first chapter, we show that accounting for plant heterogeneity is important for the evaluation of environmental policies. We develop a general equilibrium model in which monopolistic competitive plants differ in productivity, produce differentiated goods and choose optimally a discrete emission-reduction technology. Emission-reduction policies affect both the fraction of plants adopting the advanced emission-reduction technology and the market shares of those with high levels of productivity. Calibrated to the Canadian data, the model shows that the aggregate costs of an emission tax to implement the Kyoto Protocol are 40 percent larger than the costs that would result with homogenous plants. In the second chapter, we incorporate labor search frictions into a model with lumpy investment to explain a set of firm-size-related facts about the United States labor market dynamics over business cycles. Contrary to the predictions of standard models, we observe that job destruction is procyclical in small firms but countercyclical in large ones. Calibrated to U.S. data, the model generates this asymmetric pattern of employment dynamics in small versus large firms. This is because a favorable aggregate productivity shock tightens the labor market. A tighter labor market hurts investing small firms. As a result, workers move from small to large firms during booms. In the third chapter, we analyze the welfare costs of inflation when money is essential to facilitate trades among anonymous agents and information about nominal shocks is incomplete as in Lucas (1972). In the model, the transactions in which money is essential coincide with those in which agents are affected by monetary shocks. Consequently, the average value of money and its variation in value in different markets affect agents simultaneously when the supply of money changes. Calibrated to U.S. data, we find that the welfare costs of expected inflation are almost three orders higher than the welfare costs of unexpected inflation.

Keywords: Macroeconomics
Environmental Economics
Employment Dynamics
Inflation
Advisor: Shi, Shouyong