Elizabeth Tennant, Ph.D.

  • Research Associate

Research

Working Papers

Dynamics of armed civil conflict in the wake of tropical cyclones

In settings with weak institutions and underdevelopment, both disasters and violence are more likely to occur and to be more severe. Recent research highlights how these same vulnerabilities condition relationships between hazards and violent conflict. Isolating these separate effects empirically is therefore challenging, although critical for forecasting and developing interventions to mitigate risks to human security. Paying increased attention to hazard exposure can improve these estimates by: (1) addressing endogeneity issues that arise from overlapping vulnerability to disasters and to violent conflict, and (2) identifying heterogeneities across contexts, types of hazard, and spatial and temporal scales. Looking at tropical cyclones, we model storm winds at high spatial resolutions from historical storm tracks using a parametric wind speed model. We then estimate a set of fixed-effects models to quantify how storm hazard relates to the incidence of armed intrastate conflicts at multiple scales. We find evidence of localized risk enhancement in tropical cyclone affected regions peaking approximately a year after the storm; but little evidence that tropical cyclones, on average over a two-year time horizon, enhance or diminish violent conflict in exposed countries. Results vary with the intensity of hazard exposure and are highly heterogeneous -- possibly due to the quality of institutions and other contextual factors which shape tropical cyclone impacts and subsequent pathways to violence.

COVID-19 and food insecurity in rural Africa: Evidence from Malawi

  • with Joanna Upton, Hope Michelson, and Erin Lentz
  • (abstract)
Although COVID-19 is widely assumed to have increased food insecurity across the globe, rigorous micro-level evidence remains limited, especially for rural areas of low income countries. To address this need, we use a 38-month, 2250 household panel from Southern Malawi to compare household-level food security status during the pandemic to a counterfactual we construct using machine learning methods. Our data start two years before the onset of the pandemic, allowing us to control for two potentially-critical confounders: seasonal food security dynamics and inter-annual production shocks. We find evidence that COVID-19 negatively impacted household food security for the poorest households and exacerbated pre-existing inequalities: 74% of the most food insecure households pre-pandemic were a full standard deviation worse-off in 2020 than they would have been otherwise. Our results show that failure to account for seasonal and inter-annual variation risks mischaracterizing the inequitable food insecurity impacts of COVID-19. Our qualitative work suggests that while the food security status of the most food secure residents remained relatively stable, the pandemic prompted these households to cut their labor demand. As a result, off-farm earning opportunities for the poorest households declined, likely harming their food security status during the pandemic.

Local governance, poverty, and tropical cyclone mortality in the Philippines

The Philippines is highly exposed to natural hazards, including tropical storms and cyclones. Between 2006 and 2016, eighty-five storms caused over eleven thousand fatalities in the country. Many of the areas affected by tropical cyclones also suffer from chronic poverty and weak institutional capacity. The disproportionate vulnerability of the poor to natural hazards amplifies concerns that the people and communities most in need of adaptation lack the financial resources and institutional capacity to address the risks associated with climate change. In this paper, I investigate whether short-term changes in local poverty rates and government fiscal capacity impact tropical cyclone mortality in the Philippines. I construct and analyze a new panel dataset of tropical cyclone mortality, poverty rates, and local government financial flows for 78 provinces from 2005-2016 and 1,468 municipalities from 2007-2016. I also control for hazard exposure using high-resolution parametrically modeled wind speeds and population data. This improves precision of the estimates and corrects for biases that would otherwise be introduced by the correlation of poverty and cyclone exposure in the data. I demonstrate that aggregate statistics at the national and even provincial scales can obscure large heterogeneities in socioeconomically produced vulnerabilities. I find evidence that short-term changes in the share of people living in poverty impact tropical cyclone mortality risk at the municipal level.

Publications

COVID-19, household resilience, and rural food systems: Evidence from southern and eastern Africa

  • with Joanna Upton, Kathryn Fiorella, and Christopher B. Barrett
  • In C. Béné & S. Devereux (Eds.), Resilience and Food Security in a Food Systems Context, March 2023, 281–320.
  • (abstract) (paper)
Resilience offers a useful lens for studying how human well-being and agri-food systems absorb and recover from a range of shocks and stressors, including the COVID-19 pandemic. Looking beyond the direct effects of observable shocks to the mechanisms that shape their impacts can guide our understanding of COVID-19 and leverage findings from the pandemic to better understand resilience to future shocks. We develop a conceptual framework for the multiple paths through which observed shocks interact with systemic mechanisms to influence resilience. We illustrate this framework with reference to the pandemic and policy responses as they unfolded in three rural areas in Malawi, Madagascar, and Kenya. Consistent with this framework, we find multiple pathways through which the pandemic affected household food security and resilience. Our findings highlight that, in some settings, the direct effects—in this case severe illness and mortality from SARS-CoV-2—may impact fewer people than the indirect impacts that arise as behaviors, markets, and policies adjust. We illustrate that although COVID-19 is a new shock, its massive, broad-reaching impacts manifest through familiar stressors and uncertainties that frequently burden poor rural populations in much of the low- and middle-income world.

A scoping review of the development resilience literature: theory, methods and evidence

  • with Christopher B. Barrett, Kate Ghezzi-Kopel, John Hoddinott, Nima Homami, Joanna Upton, and Tong Wu (authorship shared equally)
  • World Development, Oct 2021, 146, 105612
  • (abstract) (paper)
Development and humanitarian agencies have rapidly embraced the concept of resilience since the 2008 global financial and food price crises. We report the results of a formal scoping review of the literature on development resilience over the ensuing period. The review identifies the theoretical and methodological underpinnings and empirical applications of resilience as the concept has been applied to individual or household well-being in low-and middle-income countries. From 9,558 search records spanning 2008-20, 301 studies met our pre-registered inclusion criteria. Among these, we identify three broad conceptualizations employed – resilience as capacity, as a normative condition, or as return to equilibrium – and explain how the resulting variation in framing leads to marked differences in empirical methods and findings. We study in greater depth a set of 45 studies that met five key criteria for empirical studies of resilience. The larger, more established, qualitative empirical literature yields insights suggestive that the concept of resilience can add value. The quantitative literature is thinner and divided among methods that limit cross-study comparability of findings. Overall, we find that development resilience remains inconsistently theorized and reliant on methods that have not been adequately reconciled to identify which tools are best suited to which questions. Despite much published evidence, most findings concentrate on just a few countries and natural shocks, and rely on cross-sectional data at just one scale of analysis. The result is a dearth of generalizable evidence, especially of rigorous impact evaluations, to guide whether or how agencies might build resilience among target populations.

Government effectiveness and institutions as determinants of tropical cyclone mortality

Strong institutions as well as economic development are generally understood to play critical roles in protecting societies from the adverse impacts of natural hazards, such as tropical cyclones. The independent effect of institutions on reducing these risks, however, has not been confirmed empirically in previous global studies. As a storm's path and intensity influence the severity of the damages and may be spatially correlated with human vulnerabilities, failing to accurately capture the physical exposure in an econometric analysis may result in imprecise and possibly biased estimates of the influence of the independent variables. Here, we develop a novel approach to control for the physical exposure by spatially interacting meteorological and socioeconomic data for over one-thousand tropical cyclone disasters from 1979 to 2016. We find new evidence that higher levels of national government effectiveness are associated with lower tropical cyclone mortality, even when controlling for other socioeconomic conditions such as GDP per capita. Within countries, deaths are higher when strong winds are concentrated over areas of the country with weaker or less inclusive institutions. These results suggest that policies and programs to enhance institutional capacity and governance can support risk reduction from extreme weather events.

Bridging Research and Policy on Climate Change and Conflict

  • with Elisabeth A. Gilmore, Lauren Herzer Risi and Halvard Buhaug
  • Current Climate Change Reports, Volume 4, Issue 4, October 2018, Pages 313–319
  • (abstract) (paper)
This special issue on “Bridging Research and Policy on Climate Change and Conflict” brings together the results of a 2018 workshop organized by the Peace Research Institute, Oslo (PRIO) and the Wilson Center with six papers that address different aspects of the translation of the research on climate change and conflict to policy and practice. Here, we provide an overview of the workshop and papers to highlight key opportunities and challenges to linking the climate-conflict scholarship with pressing issues in diplomacy, development, and security. Multiple methods, especially comparative case studies, should be applied to elucidate the more complex mechanisms of the climate-conflict link. This approach may also enhance engagement with the policymakers who draw on examples and narratives. There is also a need for both predictive models that capture contextual factors and policy interactions as well as decision-support tools, such as integrated assessment models, that can be used to test the implications of different theories and models in the literature. Scholars should engage the policy community to formulate research questions that are more policy relevant, such as the effectiveness of interventions. There is also the need for models and frameworks that help practitioners synthesize the academic results. Practitioners are encouraged to leverage the comparative advantages of academic researchers in new policy and projects to inform data collection and future analysis of effectiveness.

A Framework for Evaluating Implementation of Community College Workforce Education Partnerships and Programs

  • with Louise Yarnall and Regie Stites
  • Community College Journal of Research and Practice, Volume 40, Issue 9, 2016, Pages 750-766
  • (abstract) (paper)
Greater investments in community college workforce education are fostering large-scale partnerships between employers and educators. However, the evaluation work in this area has focused on outcome and productivity metrics, rather than addressing measures of implementation quality, which is critical to scaling any innovation. To deepen understanding of the field, sound metrics need to be assembled of the processes involved in workforce education (e.g., partnering with employers, designing and delivering instruction). This article addresses that gap with the Workforce Education Implementation Evaluation (WEIE) framework. Relying on five case studies of employer-community college collaborations, and drawing on labor market analysis methods, partnership capital and regional ecosystem theory, and the learning sciences, the WEIE framework provides tools to characterize implementation quality. To illustrate how it works, we have applied the framework to two contrasting cases that represent the predominant approaches to engaging employers in workforce education programming: large-scale partnership and employer outreach.