College of Behavioral & Social Sciences
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The collections in this community comprise faculty research works, as well as graduate theses and dissertations..
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Item Examining the Joint Contribution of Trauma and Adverse Neighborhood Characteristics to Paranoid Ideation: A Multi-Method Approach in a Transdiagnostic Sample.(2024) Todd, Imani; Blanchard, Jack J; Psychology; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)Paranoid ideation is common in psychosis and is associated with impairment. Multiple cognitive factors influence paranoid ideation, including lack of belief flexibility and hostile attributions. Separately, negative affect precedes and maintains later paranoid ideation. Research on what provokes these cognitive and affective biases highlights the influence of trauma and environmental stress. Traumatic experiences are a reliable risk factor for psychotic disorders and suspiciousness. Prior literature examining trauma and paranoid ideation only uses broad indicators of positive symptoms or single-item assessments. Aside from trauma, environmental research identifies two major facets that contribute to the development and maintenance of psychotic symptoms: neighborhood deprivation and crime. Population studies show that individuals who reside in deprived neighborhoods are more likely to experience increased paranoid ideation. Crime may also influence perceptions of threat and hostility and has been related to paranoid ideation. Neighborhood deprivation and crime can be measured through objective assessments and neighborhood perceptions. Evidence suggests that neighborhood perceptions impact paranoid ideation, above and beyond area-level assessments of neighborhood features, but findings vary. Although trauma, neighborhood deprivation, and crime have been shown to impact paranoid ideation, few have examined these constructs in Tandem. The current study seeks to examine the association between individual-level (i.e., trauma, neighborhood perceptions) and system-level (i.e., neighborhood deprivation and crime) factors and paranoid ideation. Results indicated that greater trauma and perceptions of neighborhood violence concurrently contributed to more severe paranoid ideation. However, administrative data on neighborhood deprivation and crime were not related. These results indicate that violence perceptions interact with existing vulnerabilities in exacerbating perpetuating psychotic symptomatology. Thus, interventions focused on reducing paranoia in this population would benefit from considering past traumas and one's current environment.Item ESSAYS ON INTERNATIONAL TRADE AND THE ENVIRONMENT(2022) Lim, Heehyun Rosa; Limão, Nuno; Lee, Eunhee; Economics; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)This dissertation examines the relationship between international trade and environmental outcomes. In particular, I study the impact of international trade on airborne pollutants, including the change in emissions and concentration as well as their welfare consequences. In the first chapter, I suggest the intermediate import channel as a new perspective to understand the linkage between international trade and air pollutant emissions. I first review the existing literature's understanding of the impact of trade on emissions. The review shows that the literature mostly focuses on the increased market access but overlooks the increased access to imported inputs. Using the data on the US manufacturing industries, I then document a few stylized facts that are suggestive of the linkage between intermediate imports, input usage, and emissions. I show that in the US, the import penetration among inputs used has increased while the energy intensity of US manufacturing has declined, the latter of which explains a third of the within-industry reduction in $NO_x$ emission intensity. To analyze the channels by which trade in intermediate inputs affects emission intensity, I build a model of heterogeneous firms, intermediate trade, and inputs with different emission profiles. By focusing primarily on the emissions linked with input usage, my model examines the effect of improved access to foreign intermediates on firms' input choices and emission outcomes. The model shows that with lower intermediate import costs, firms become less energy-intensive by either increasing their intermediate intensity, using energy-saving technology, or both. Moreover, the general equilibrium force, as well as amplification through the input-output linkage, bring a further decrease in emission intensity in all firms. The model also presents the selection and reallocation effect which further amplifies the within-firm improvements. In the second chapter, I run empirical and quantitative analyses to test the theoretical model from the first chapter against the US manufacturing data. In the empirical analysis, I estimate the model prediction, which states that industry-level emission intensity can be expressed in the producer price index when the cost of energy and market access are controlled,using the industry-level panel data between 1998 and 2014. By using the import price of intermediates as an instrumental variable for the producer price index, I find evidence that a lower producer price, driven by a lower intermediate import price, leads to lower $NO_x$ emission intensity. The reduced-form evidence supports the model mechanism that states that a lower import price of intermediates decreases emission intensity. I then calibrate the model to 1998 aggregate US manufacturing and quantify the change in emission intensity driven by the change in intermediate import cost. The quantification shows that the fall in intermediate import cost between 1998 and 2014 explains about 8-10\% of the observed technique effect in $NO_x$ emissions. 68\% of the decrease comes from the within-firm changes via firms' substituting away from energy inputs, global sourcing, and adopting energy-saving technology, which highlights the importance of taking within-firm channels into account to understand the effects of trade policies on emissions. The third chapter (co-authored) re-examines the welfare gains from international trade by incorporating the transboundary nature of air pollutants.\footnote{This chapter is from a joint work with Eunhee Lee.} We run country-level panel regressions and find that concentration is correlated with transboundary pollution, constructed as the weighted sum of other countries' emissions. We then build a general equilibrium model of international trade and environmental externality from local pollutants of transboundary nature, in which the concentration of a country is affected by both its own and other countries' emissions. The model shows that the change in welfare can be decomposed into the change in real income and the change in air pollutant concentration, the latter of which can further be decomposed into that driven by own emissions and by other countries' emissions. We use this model to quantify the welfare implications of two trade shocks -- China shock and the EU 2004 enlargement. The results show multiple channels that shape heterogeneous welfare consequences across countries. First, liberalizing countries experience an increase in emissions due to an increase in production. Second, the emissions of other countries move in either direction, depending on the effects of pollution relocation and increased production due to cheaper inputs. Third, the levels of concentration increase in liberalized countries and some other countries due to the increase in own emissions or transboundary pollution, or both. We run additional counterfactual exercises with stricter environmental regulations imposed on liberalized countries and show that there can be welfare gains in many countries by lowering emissions and transboundary pollution, suggesting the potential effects of combining trade and environmental policies.Item Understanding Values in Organizational Contexts: The Case of Species Conservation(2021) Dewey, Amanda Michelle Milster; Ray, Rashawn; Sociology; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)Biodiversity loss poses an existential threat to human life, and human activities both intentionally and unintentionally affect other species. Values provide an important tool for explaining such human behavior. While we have evidence of the causes and consequences of wildlife values at the individual level, much human activity that influences wildlife occurs in organizational settings. This project seeks to uncover the roles and negotiation of values in conservation organizations, filling an important research gap. The project uses a case study approach to illuminate the role and negotiation of values in case studies of three wildlife conservation contexts: national wildlife conservation, red wolf conservation, and horseshoe crab conservation in the mid-Atlantic. Through strategic selection of two organizations in each case, I explore how values function in these varied conservation contexts using interviews with staff and volunteers and content analysis of websites and social media. I argue that a broader typology of value frames exists within wildlife conservation organizations than is traditionally discussed in wildlife value literature. I find that frames include moral conservationist, community-steward, and complex utilitarian values, adding nuance to the previously understood value spectrum of humans versus nature. While findings indicated that values were behavior motivators for volunteers, volunteers were more likely to perceive and attempt to construct value alignment than to actively seeking organizations that were compatible with their values. While organizations proclaimed their values and described using values in determining tactics and approaches, they also did not report consciously attempting to align values in processes of volunteer recruitment. Findings indicated differences in value processes in local versus national organizations, and a complex value framing in organizational settings. Despite the fact that the COVID-19 pandemic is an extremely disruptive social event that was directly tied to wildlife and biodiversity issues, this connection was not highlighted equally by volunteers or organizations, nor did organizations equally or significantly respond to a nationwide call to reckon with racial injustice. I argue that the organizations and volunteers who framed their values and approaches more broadly and included moral value of the wellbeing of both humans and other species were more responsive to changing social contexts.Item Sustaining Peace? Environmental and Natural Resource Governance in Liberia and Sierra Leone(2011) Beevers, Michael David; Conca, Ken; Government and Politics; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)Over the last decade environmental and natural resources governance has received a growing share of attention on the international peacebuilding agenda. Few studies have scrutinized in detail the role of international peacebuilders or whether reforms and policies help or hinder peacebuilding outcomes. This dissertation examines international efforts to shape the governance of forests in Liberia and diamonds and minerals in Sierra Leone. I find that international peacebuilding organizations frame the challenge in both cases as transforming conflict resources into peace resources for the purpose of reducing the propensity for violence. To accomplish this transformation, international peacebuilders promote and establish governance reforms and policies designed to securitize and marketize the environment and natural resources. I find that, despite producing the potential peace enhancing benefits of increased stability and revenue, rapidly pushing such a transformation strategy comes with significant linked pathologies that run the risk of recreating pre-war political arrangements, provoking societal competition, undermining environmental management and sustainable livelihoods, and creating unrealistic expectations. These effects can produce contention, foster resistance and increase the likelihood of violence in ways that undermine the conditions essential for achieving a long-term peace. An alternative approach would be to mitigate the effects of securitization and marketization by first addressing issues that have historically led to violence and contention in the environmental and natural resources sector, including land ownership and tenure issues, genuine public participation, government corruption and a lack of sustainable livelihoods.