Social and Behavioral Sciences Commons^™

On Time-Varying Factor Models: Estimation And Testing, Liangjun Su, Xia Wang

Research Collection School Of Economics

Conventional factor models assume that factor loadings are fixed over a long horizon of time, which appears overly restrictive and unrealistic in applications. In this paper, we introduce a time-varying factor model where factor loadings are allowed to change smoothly over time. We propose a local version of the principal component method to estimate the latent factors and time-varying factor loadings simultaneously. We establish the limiting distributions of the estimated factors and factor loadings in the standard large N and large T framework. We also propose a BIC-type information criterion to determine the number of factors, which can be used …

Asymptotic Distribution And Finite-Sample Bias Correction Of Qml Estimators For Spatial Dependence Model, Shew Fan Liu, Zhenlin Yang

Research Collection School Of Economics

In studying the asymptotic and finite sample properties of quasi-maximum likelihood (QML) estimators for the spatial linear regression models, much attention has been paid to the spatial lag dependence (SLD) model; little has been given to its companion, the spatial error dependence (SED) model. In particular, the effect of spatial dependence on the convergence rate of the QML estimators has not been formally studied, and methods for correcting finite sample bias of the QML estimators have not been given. This paper fills in these gaps. Of the two, bias correction is particularly important to the applications of this model, as …

A Bayesian Specification Test, Yong Li, Tao Zeng, Jun Yu

Research Collection School Of Economics

A Bayesian test statistic is proposed to assess the model specification after the model is estimated by Bayesian MCMC methods. The proposed approach does not require an alternative model to be specified and is applicable to a variety of models, including latent variable models, structural dynamic choice models, and dynamics stochastic general equilibrium (DSGE) models, for which frequentist methods are difficult to use. The properties of the test statistic are established and its implementation is discussed. The test is easy to use and the test statistic can be calculated from MCMC outputs even when there are latent variables. The method …

Limit Theory For Vars With Mixed Roots Near Unity, Peter C. B. Phillips, Ji Hyung Lee

Research Collection School Of Economics

Limit theory is developed for nonstationary vector autoregression (VAR) with mixed roots in the vicinity of unity involving persistent and explosive components. Statistical tests for common roots are examined and model selection approaches for discriminating roots are explored. The results are useful in empirical testing for multiple manifestations of nonstationarity - in particular for distinguishing mildly explosive roots from roots that are local to unity and for testing commonality in persistence.

The Nine Pillars Of Productivity, Augustine H. H. Tan

Research Collection School Of Economics

The report in The Straits Times on April 30, "S'pore cannot count on global demand to drive economy" makes for sober reading.Quoting Deputy Prime Minister Tharman Shanmugaratnam, the report notes that inflows of foreign workers slowed from 80,000 in 2011 to 20,000 last year. Meanwhile, resident labour force growth is tapering off severely. Hence the conclusion of Mr Tharman that restructuring the domestic sector to achieve higher productivity would be essential. Upgrading skills and allowing more market forces to work in weeding out the less innovative and efficient firms would be the keys to achieving this objective.Prime Minister Lee Hsien …

Employment Duration And Match Quality Over The Business Cycle, Ismail Baydur, Toshihiko Mukoyama

Research Collection School Of Economics

This paper studies the cyclical behavior of employment duration using data from the National Longitudinal Survey of Youth 1979 cohort. We estimate a proportional hazard model with competing risks, distinguishing different types of separations. A higher unemployment rate at the start of an employment relationship increases the probability that the worker quits to take or look for another job, but it decreases the probability that the firm fires the worker. The net effect of these opposing forces on the overall duration of the employment is negative, but small, implying that match quality is weakly pro-cyclical. We also build a simple …

Work Across The Generations: Communication Narratives Of Stay-At-Home Fathers In Early And Middle Adulthood, Alice L. Jones

Communication & Theatre Arts Theses

The notion of work whether it is done inside or outside the home represents a complex and shifting pattern of social relationships, gender role identities, and ideologies. For an increasing numbers of men, who represent the population of fathers labeled as "stay-at-Home Dad" [SAHD] or "stay-at-home father" [SAHF], these changes have created special challenges, controversies, and raised questions about cultural expectations concerning the transition from that of a stigmatized role to that of a "new, involved father" (Eranta & Moisander, 2011; Rochlen, 2008). Increased participation by men in roles that challenge traditional and long standing gender role norms and expectations …

Power To The People: A Comprehensive Look At Crowdsourcing Initiatives In Cultural Institutions, Danielle Pace

Seton Hall University Dissertations and Theses (ETDs)

Today, crowdsourcing has become an integrative approach to completing projects using the help of the general populous. These projects aid museum staff by processing large quantities of data, which otherwise could not be completed due to time and/or staff restraints. Through crowdsourcing, cultural institutions have the ability to outsource these tasks to volunteers, who can complete them at much faster rates. Although staff members are needed to validate and supervise these projects, crowdsourcing remains a useful tool in increasing public interactions and project efficiency.

This thesis presents a thorough outline of what crowdsourcing is, how it is being utilized, and …

Becoming The Gothic Archive: From Digital Collection To Digital Humanities, Rose Fortier, Heather G. James

Library Faculty Research and Publications

The Gothic Archive is the flagship digital humanities project for the Marquette University library. The project was birthed from a simple digital collection, and through the partnership of faculty and librarians, was transformed into something more. The core tenets of digital collection creation were adhered to in order to create a solid foundation upon which to build the Archive. The expertise of both groups and communication were key in the evolution of the collection, and in discovering and highlighting the relationships between the objects. This case study reviews the steps Marquette took in creating the collection and taking it to …

Presence-At-Hand, Eric Lyle Schultz

Graduate School of Art Theses

Abstract

The writing that follows is intended to provide a theoretical framework for the motives behind my practice. The primary concerns addressed are the reception, transmission, and physical shape of knowledge. I will discuss a human condition that exists as a byproduct of both the legacy of representation as well as the innate biology of the brain. I will argue that as a society we are governed by the residue of an extreme logic, and that this condition places severe margins on our potential for creative solutions. I will propose that our ability to create meaning is stifled by the …

Specification Test For Panel Data Models With Interactive Fixed Effects, Liangjun Su, Sainan Jin, Yonghui Zhang

Research Collection School Of Economics

In this paper, we propose a consistent nonparametric test for linearity in panel data models with interactive fixed effects. To construct the test statistic, we need to estimate the model under the null hypothesis of linearity and then obtain the restricted residuals. We show that after being appropriately centered and standardized, the test statistic is asymptotically normally distributed both under the null hypothesis and a sequence of Pitman local alternatives. To improve the finite sample performance, we propose a bootstrap procedure to obtain the bootstrap p-values. A small set of Monte Carlo simulations illustrates that our test performs well in …

Solving Multi-Vehicle Profitable Tour Problem Via Knowledge Adoption In Evolutionary Bi-Level Programming, Stephanus Daniel Handoko, Abhishek Gupta, Chen Kim Heng, Hoong Chuin Lau, Yew Soon Ong, Puay Siew Tan

Research Collection School Of Computing and Information Systems

Profitable tour problem (PTP) belongs to the class of vehicle routing problem (VRP) with profits seeking to maximize the difference between the total collected profit and the total cost incurred. Traditionally, PTP involves single vehicle. In this paper, we consider PTP with multiple vehicles. Unlike the classical VRP that seeks to serve all customers, PTP involves the strategic-level customer selection so as to maximize the total collected profit and the operational-level route optimization to minimize the total cost incurred. Therefore, PTP is essentially the knapsack problem at the strategic level with VRP at the operational level. That means the evolutionary …

Thinking Bigger: Pushing Singaporean Entrepreneurship To The Next Level, Arcot Desai Narasimhalu

Research Collection School Of Computing and Information Systems

The environment in Singaporehas become more conducive forentrepreneurship. What lies aheadand what lessons can other Asiancountries learn?

Characterizing Silent Users In Social Media Communities, Wei Gong, Ee-Peng Lim, Feida Zhu

Research Collection School Of Computing and Information Systems

Silent users often constitute a significant proportion of an online user-generated content system. In the context of social media such as Twitter, users can opt to be silent all or most of the time. They are often called the invisible participants or lurkers. As lurkers contribute little to the online content, existing analysis often overlooks their presence and voices. However, we argue that understanding lurkers is important in many applications such as recommender systems, targeted advertising, and social sensing. This research therefore seeks to characterize lurkers in social media and propose methods to profile them. We examine 18 weeks of …

Efficient Data Communication In Unmanned Aerial Vehicles, Farhan Mohamed

Theses

A large number of recent advancements in the technology of Unmanned Aerial Vehicles (UAVs) have enabled them to be very useful and effective in many applications in today’s society. They demonstrate a high degree of stability and agility in the air. A few years ago military applications were the main driving force behind the development of UAVs and UAV systems. Many of their applications included monitoring, surveillance, data transmission and communication. Recently, several opportunities have emerged and participated in driving the development of UAV technology further ahead. Such opportunities include integration of UAVs with smart cities, disaster recovery, military and …

Shaping American Foreign Policy A Game Theoretic Analysis Of The United States'--North Korean Relationship, Kimberly Michelle Ganczak

Graduate Program in International Studies Theses & Dissertations

Over the past two decades, international relations researchers have developed increasingly nuanced game theoretic models to analyze interstate interactions. This study is a modem, case-specific Bayesian analysis that aims to make contributions to the scholarly analysis of conflict while offering practical advice to policymakers interested in relations between the United States and North Korea.

This study develops a new model of United States - North Korea relations in order to develop insights useful for understanding and hopefully refining, management of this relationship. This study utilizes the extensive form of a signaling game to model the interactions between both states. This …

The Influence Of Texting And Virtual Peers On Adolescent Alcohol Use, Eric Steven Gregory

Dissertations

The Social Development Theory has guided substance abuse prevention planning and programming for the past two decades. One of the key risk factors cited in and targeted by Social Development Model strategies is that of the influence of peers on adolescent substance use. With the advent of modern cellular technology, the manner in which adolescents currently interact has shifted in preference from that of traditional face-to-face to interaction through text messaging. Recent research has suggested a link between the frequency of adolescent texting behavior and adolescent substance use. This shift in interaction may influence the mechanisms of peer influence and …

Rod Library Newsletter: Rod Notes, V7n9, May 2015, University Of Northern Iowa. Rod Library.

Rod Library newsletter: Notes for the Stalled

Contents:

-- Don't Forget
-- Did You Know?
-- ScholarWorks
-- Finals Week Stress Buster

Professional Baseball Players Transition From The Sport, Amy Moviel

Graduate Student Dissertations, Theses, Capstones, and Portfolios

This phenomenological research study explored the perceptions and lived experiences of professional baseball players related to their level of preparedness for retirement from the sport. The study was guided by three research questions. The data were collected from eight professional baseball players at different stages of their career. Data collection occurred through interviews with four actively playing professional baseball players and four former professional baseball players. The findings of the study reveal that during their careers, professional baseball players typically devote exclusive focus to training and skill development in an effort to remain in the game as long as possible. …

Hague Convention On Choice Of Court Agreements 2005: A Singapore Perspective, Tiong Min Yeo

Research Collection Yong Pung How School Of Law

When Singapore joined the Hague Conference on 9 April 2014, it was widely anticipated that it would adopt the Hague Convention on Choice of Court Agreements 2005. This article explores the differences between the Convention regime and the common law position in Singapore, the likely effects of the adoption of the Convention under Singapore law, as well as the considerations that are likely to influence Singapore's approach to the adoption of the Convention.

Drug Traffickers' Deaths: Criticisms Of Laws Not All Fair, S. Chandra Mohan

Research Collection Yong Pung How School Of Law

This is a comment on the western media frenzy over the executions of eight drug traffickers in Indonesia. The commentary looks at whether the anguish over the executions following a conviction and appeals to higher courts in accordance with Indonesian law, apart fromn the loss of life,was well placed.

Killing New Vistas With The Over-Regulation Of Recreational 'Drone' Use, Siyuan Chen

Research Collection Yong Pung How School Of Law

In the last few years, there has been a dramatic increase in the use of remote-controlled copters – often given the convenient but misleading epithets of unmanned aerial vehicles or “drones” – by recreational users to capture aerial photographs and videos on an unprecedented scale. Asia is no exception. The convergence of cutting-edge technological developments in gyroscopic gimbals, long-range wireless transmissions, GPS-enabled stabilisation, GPS-enabled flightpath-preprogramming, first-person-views, and compact digital imaging has led to the proliferation of affordable camera-carrying “drones” that even hobbyists can pilot with reasonable safety. Thus far, despite purported controversies there have not been any reports of serious …

Letting In The Light – Finding Your Tragic Hero, Nadja Alexander

Research Collection Yong Pung How School Of Law

In this essay, Nadja Alexander explores the melodramatic nature of the tales we tell when we are stuck in difficult conversations and tense situations. Whether in public or private life, when we find ourselves in conflict we tend to use particular storytelling patterns called melodramatic narratives. Here we explore the potentially destructive nature of these conflict storytelling patterns and consider the extent to which they are wired into the default mechanisms of our DNA. Drawing upon ideas from the practice of storytelling, narrative structures, and conflict coaching theory, Nadja shows how we can mindfully engage our emotional intelligence, to find …

An Academic Library-Biotech Industry Partnership: Defining A Collaboration, Deborah A. Crooke, Marie T. Ascher, Marta Ambroziak

NYMC Faculty Posters

New York Medical College opened BioInc@NYMC, a multimillion-dollar government-funded biotechnology incubator, in October 2014. To spur medical innovation and economic development, the public and private sectors collaborated to provide biotech start-ups with state-of-the-art facilities. By April 2015 four start-up companies had joined the incubator. The Health Sciences Library was given a unique opportunity to interface with the private biotechnology industry and define an academic library-biotechnology industry partnership.

The Relationship Of Social Philosophy (Aka Ideology) To Social Policy (Access The Benefits Of Society), Gil Villagran

Faculty Research, Scholarly, and Creative Activity

Biology scientist Charles Darwin, author of "The Origin of Species," concluded that "the survival of the fittest" is an axiom descriptive of observed nature in his native England and on his two-year voyage on the MSS Beagle to South America. From Darwin's ideas social philosopher Herbert Spencer posited the theory that for society/civilization to succeed, only the fittest humans, societies, nations will/should survive. Therefore, helping the infirm, the sick, and the "lower" members of any community/society/nation is contrary to the law of nature, and will lead to the "imperfection of mankind." This idea came to be called Social Darwinism.

Resistance, Acquiescence Or Incorporation? An Introduction To Land Grabbing And Political Reactions ‘From Below’, Marc Edelman, Ruth Hall, Saturnino M. Borras Jr., Ian Scoones, Ben White, Wendy Wolford

Publications and Research

Political reactions ‘from below’ to global land grabbing have been vastly more varied and complex than is usually assumed. This essay introduces a collection of ground- breaking studies that discuss responses that range from various types of organized and everyday resistance to demands for incorporation or for better terms of incorporation into land deals. Initiatives ‘from below’ in response to land deals have involved local and transnational alliances and the use of legal and extra-legal methods, and have brought victories and defeats. The relevance of political reactions to land grabbing is discussed in light of theories of social movements and …

Multimodal Frontostriatal Connectivity Underlies Individual Differences In Self-Esteem, Robert S. Chavez, Todd F. Heatherton

Dartmouth Scholarship

A heightened sense of self-esteem is associated with a reduced risk for several types of affective and psychiatric disorders, including depression, anxiety and eating disorders. However, little is known about how brain systems integrate self-referential processing and positive evaluation to give rise to these feelings. To address this, we combined diffusion tensor imaging (DTI) and functional magnetic resonance imaging (fMRI) to test how frontostriatal connectivity reflects long-term trait and short-term state aspects of self-esteem. Using DTI, we found individual variability in white matter structural integrity between the medial prefrontal cortex and the ventral striatum was related to trait measures of …

Racial Disparities In Infant Mortality, 1990 To 2004: Low Birth Weight, Maternal Complications And Other Causes, Ginny Garcia-Alexander, Hyeyoung Woo

Sociology Faculty Publications and Presentations

Demographers have long studied the unacceptably high rates of infant mortality in the U.S., relative to other advanced countries. These higher rates are largely attributable to persistent racial gaps in infant health outcomes and are likely a reflection of social inequalities, which manifest as poorer infant health outcomes in certain groups. We extend on previous research in this area by utilizing the restricted 1990 and 2000 cohort linked birth-death files to examine the risk of infant death due to several main causes including: maternal complications, low birth weight, and other causes, and how it has changed over time. We estimate …

Trends And Disparities In Postpartum Sterilization Following C-Section, 2000-2008, Ginny Garcia-Alexander, Dawn M. Richardson, Kelly Gonzales, Adolfo Gabriel Cuevas

Sociology Faculty Publications and Presentations

Objectives. We examined variations in the prevalence of postpartum tubal sterilizations following cesarean sections (C-sections) from 2000 to 2008. Methods. We used data from the National Hospital Discharge Survey (NHDS) to estimate odds ratios for patient- (race, marital status, age) and system-level factors (hospital size, type, region) on the likelihood of receiving tubal sterilization after C-section. Results. A disproportionate share of postpartum tubal sterilizations following C-section was covered by Medicaid. The likelihood of undergoing sterilization was increased for Black women, women of older age, and non-single women. Additionally, they were increased in proprietary and government hospitals, smaller hospital settings, and …

2014 Transit Oriented Developments Survey, Jennifer Dill, Nathan Mcneil

TREC Final Reports

This report presents results from surveys of residents at several transit-oriented developments (TODs) in Portland, Hillsboro, Tigard, and unincorporated Clackamas County. The research complements our previous survey work for Metro done at eight TODs in 2010 and 11 TODs in 2007.