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Edited by
Bruce Campbell, Clim-Eat, Global Center on Adaptation, University of Copenhagen,Philip Thornton, Clim-Eat, International Livestock Research Institute,Ana Maria Loboguerrero, CGIAR Research Program on Climate Change, Agriculture and Food Security and Bioversity International,Dhanush Dinesh, Clim-Eat,Andreea Nowak, Bioversity International
The agricultural research for development (AR4D) domain is becoming increasingly complex, and theory of change (ToC) approaches can provide critical guidance through the maze of transformation concerning engagement, partnership, and research. Most of the major benefits that accrue through the use of ToCs relate to internal learning within project teams. Finding the balance between applying a ToC that is both useful and time- and resource-smart is challenging and may need iteration to get right. Quantitative impact assessment methods must be blended with qualitative methods in ToC-based AR4D, so that evaluation becomes about both the process and numbers, while new methods require developing for blended evaluation. The evidence base concerning the efficiency, efficacy, and failings of ToC-based AR4D urgently requires further development and synthesis, and the lessons must be applied broadly.
In this chapter I examine the statistical effect of industrialization on ethnic change. I first take Soviet-era cross-national data measuring ethnic diversity by country in 1961 and 1985 and regress the change in ethnic diversity across these twenty-four years on change in carbon emissions per capita over the same time period. The results demonstrate a strong relationship between decreasing ethnic diversity and increasing levels of industrialization, a result which is robust to the inclusion of several control variables and the use of various sub-samples, as well as alternative measures of industrialization such as cement production and urbanization. I also show that carbon emissions are robustly correlated with change in the percentage identifying with the largest ethnic group per state. I then use an alternative original dataset consisting of individual country censuses between 1960 and 2019, and show that the same effect holds, both as regards the effect of carbon emissions on ethnic fractionalization as well as robustness checks and multiple alternative measures such as electricity consumption and the share of labour in both agriculture and industry.
As the interface between plants and the environment, the leaf epidermis provides the first layer of protection against drought, ultraviolet light, and pathogen attack. This cell layer comprises highly coordinated and specialised cells such as stomata, pavement cells and trichomes. While much has been learned from the genetic dissection of stomatal, trichome and pavement cell formation, emerging methods in quantitative measurements that monitor cellular or tissue dynamics will allow us to further investigate cell state transitions and fate determination in leaf epidermal development. In this review, we introduce the formation of epidermal cell types in Arabidopsis and provide examples of quantitative tools to describe phenotypes in leaf research. We further focus on cellular factors involved in triggering cell fates and their quantitative measurements in mechanistic studies and biological patterning. A comprehensive understanding of how a functional leaf epidermis develops will advance the breeding of crops with improved stress tolerance.
Do attempts to level the financial playing field lead more candidates to run for office? In theory, public financing should increase competition, presumably because additional funding from taxpayers motivates more challengers to run for office. I provide a novel test of this logic with data on all candidates running for state legislature across all US states between 1976 and 2018. The results suggest that public financing exerts a generally positive effect on the total number of candidates running for state legislative office and specifically increases the number of candidates running in elections for every additional year after the passage of public financing. This effect is amplified in states that offer greater amounts of public funds. I conclude that the availability of public financing can be an equalizing force in elections, and that state legislative elections continue to experience increased competition in the years after the introduction of public financing.
As international trade flourishes, Americans can choose from an increasing number of foreign products even at their local grocery stores, allowing consumers to directly experience the consequences of globalized trade in a simple and intuitive way that does not require much political expertise. Yet, most prior scholarship on political consumerism assumes that consumers are aware of the political and economic implications of their choices at the checkout lane. We move away from this assumption, focusing instead on more fundamental psychological predispositions such as ethnocentrism that may guide daily consumer choices. Using a discrete choice conjoint experiment, we show that Americans, on average, exhibit ethnocentric consumer preferences, with demand for products falling as they are produced in more culturally and ethnically distant places. Additionally, we show that this effect is more pronounced among those with higher levels of ethnocentrism. Our results provide evidence for a “naïve” form of political consumerism.
Local government in China is largely responsible for funding social policy and has significant control over the specifics of program design and implementation. Therefore, the same policy can look quite different across provinces and even across counties within the same province. What accounts for local variation in social policy provision? This chapter provides a framework of provincial policy styles and demonstrates how these distinct ways of governing help explain variation in social policy implementation. First, the chapter presents an index of policy styles to classify Chinese provinces based on their dominant policy style: pragmatist, paternalist, or mixed. Then, the chapter examines how provinces diverge in their social policy priorities using provincial social policy spending to measure social policy priorities. The analysis finds that pragmatist provinces are more likely to prioritize education and healthcare, while paternalist provinces are more likely to prioritize poverty alleviation and housing.
Due to uneven economic reforms, Chinese provinces have developed distinct approaches to governing that impact social policy priorities and policy implementation. Ratigan shows how coastal provinces tended to prioritize health and education, and developed a pragmatic policy style, which fostered innovation and professionalism in policy implementation. Meanwhile, inland provinces tended to prioritize targeted poverty alleviation and affordable housing, while taking a paternalist, top-down approach to implementation. This book provides a quantitative analysis of provincial social policy spending in the 2000s and qualitative case studies of provinces with divergent approaches to social policy. It highlights healthcare, but also draws on illustrative examples from poverty alleviation, education, and housing policy. By showing the importance of local actors in shaping social policy implementation, this book will appeal to scholars and advanced students of Chinese politics, comparative welfare studies, and comparative politics.
This chapter examines the significance of attitudinal research in understanding the dynamics of language contact situations in multilingual societies from a cross-disciplinary perspective. This chapter provides practical guidance for the study of language attitudes and ideologies in multilingual communities by discussing issues relating to research planning and design (e.g. identifying which languages are to be explored, whose language attitudes are to be examined in the community), as well as data analysis and interpretation (e.g. quantitative data collected through questionnaires or matched-guise techniques, or qualitative data through interviews or ethnographies). Other important considerations for attitudinal research in multilingual communities are also covered (e.g. the mismatch between positive attitudes towards a language or languages and language use, or links between language policies and language attitudes in language revitalisation projects). The main points made in the chapter are illustrated by means of two case studies. The first relates to language attitudes in multilingual classrooms and the second focuses on language attitudes and ideologies amongst new speakers of minority languages with a focus on Galician in the Autonomous Community of Galicia in north-western Spain.
Recent developments in the experimental syntax program have challenged some of the standard practices for collecting and analyzing linguistic evidence. In doing so, the methodological and theoretical gap between other areas of language science has begun to close. It is more common than ever before for research in theoretical syntax to incorporate multiple methodologies in the same study. Online elicitation methods, adopted from psycholinguistics, have been the most visible new addition to the theoretical syntactician’s toolbox. Yet observational data, in the form of corpora, has begun to play a larger role in contemporary syntactic investigation. The aim of this chapter is to contextualize the evolving role of corpus studies in syntactic investigation as a methodology that can be used to externally validate results from other methods as well as generate hypotheses. I highlight theoretical and practical advantages of employing corpora in tandem with other methods and point to future directions where gains can still be made.
A central challenge in understanding public opinion shifts is identifying whose opinions change. Political economists try to uncover this by exploring voters’ economic vulnerability, particularly the relationship between labor-market risk and redistribution preferences. Predominantly, however, such work imputes risk from occupational or sectoral characteristics. Due to within-occupational inequality in exposure to risk, considerable variation remains unexplored. I propose an individual-level, dynamic account of risk inferred from job tenure, contract type, and expectations of job security. These aspects, importantly, account for individual variation in risk and the possibility that one's experience of risk may change across time. The results indicate the usefulness of this approach to risk in understanding changes in social spending preferences.
This chapter considers the importance of evaluation in understanding the effectiveness of your health promotion program and highlights the value of knowing why something does or does not work. It outlines basic evaluation methods used in health promotion, and considers the benefits and weaknesses of qualitative and quantitative methods respectively.
Scholars often examine the effect of generic job demands and resources on burnout, yet to increase ecological validity, it is important to examine the effects of occupation-specific characteristics. An extended version of the job demands-resources model with work−home interference as a mediator is examined among a cross-sectional sample of 178 general practitioners (GPs). Interviews with GPs were used to develop questions on occupation-specific work characteristics. Hypotheses were tested in MEDIATE. Both generic and occupation-specific job demands positively affected emotional exhaustion, while only occupation-specific job demands affected depersonalization. Only strain-based work−family interference mediated the relationship between generic and occupation-specific job demands, emotional exhaustion and depersonalization. This study offers an important extension of the job demands-resources model by including occupation-specific job characteristics. This broader perspective can aid in more targeted job design to reduce burnout among GPs.
Measuring Behaviour is the established go-to text for anyone interested in scientific methods for studying the behaviour of animals or humans. It is widely used by students, teachers and researchers in a variety of fields, including biology, psychology, the social sciences and medicine. This new fourth edition has been completely rewritten and reorganised to reflect major developments in how behavioural studies are conducted. It includes new sections on the replication crisis, covering Open Science initiatives such as preregistration, as well as fully up-to-date information on the use of remote sensors, big data and artificial intelligence in capturing and analysing behaviour. The sections on the analysis and interpretation of data have been rewritten to align with current practices, with advice on avoiding common pitfalls. Although fully revised and revamped, this new edition retains the simplicity, clarity and conciseness that have made Measuring Behaviour a classic since the first edition appeared more than 30 years ago.
Behaviour is the actions and reactions of an organism or group of organisms. Living organisms, robots and virtual agents all exhibit measurable forms of behaviour. Measuring behaviour involves assigning numbers to direct observations of behaviour using specified rules. Direct observation means collecting data that relates directly to the performance of the behaviour pattern in question. Measuring behaviour accurately and reliably is important because behaviour is central to answering many questions in the biological and social sciences. Measuring behaviour is challenging because behaviour has a temporal component, does not always occur in discrete bouts, is generally complicated, can be influenced by stimuli undetectable to humans and varies both within and between individuals. Studying behaviour can be broken down into a series of steps that starts with asking a question and ends with communicating findings.
This Element discusses how shiny, an R package, can help instructors teach quantitative methods more effectively by way of interactive web apps. The interactivity increases instructors' effectiveness by making students more active participants in the learning process, allowing them to engage with otherwise complex material in an accessible, dynamic way. The Element offers four detailed apps that cover two fundamental linear regression topics: estimation methods (least squares, maximum likelihood) and the classic linear regression assumptions. It includes a summary of what the apps can be used to demonstrate, detailed descriptions of the apps' full capabilities, vignettes from actual class use, and example activities. Two other apps pertain to a more advanced topic (LASSO), with similar supporting material. For instructors interested in modifying the apps, the Element also documents the main apps' general code structure, highlights some of the more likely modifications, and goes through what functions need to be amended.
This chapter uses an original dataset of rebel governance historically and globally to statistically analyze the strength and robustness of the association between rebel goals and rebel governance. The chapter begins with a preliminary test for selection that assesses whether rebel goals are systematically correlated with structural factors that might ease rebel groups’ provision of governance such that rebel goals and governance appear to be systematically correlated when this correlation is an artifact of some latent variable. The results of this analysis suggest that rebel goals are not associated with other factors that might make it easier for rebels with revolutionary goals to implement challenging governance projects. Next, it presents the multivariate regression results of rebel goals on governance. Results are consistent with expectations and robust to a number of different specifications. Third, this chapter examines whether rebels who introduced governance to a broader array of people were more likely to be victorious. The results indicate that more extensive governance confers no military advantage, further suggesting that rebels’ governance is not necessarily militarily advantageous.
This chapter begins by outlining the mixed-methods approach used to test the argument. To assess causal mechanisms, it relies on process-tracing techniques drawing on archival and primary data, in addition to secondary sources, within a paired case comparison framework. To assess generalizability, the chapter tests an observable implication of the theory using a large-n quantitative analyses with an original dataset. Next, it delineates the observable implications of theoretical contentions, then it discusses three rival explanations that are simultaneously evaluated in each chapter. The chapter explains the case selection strategy and presents an overview of the results. It concludes with a discussion of data and measures for the key variables.
In this article, we develop and make available measures of public ideology in 2010 for the 50 American states, 435 congressional districts, and state legislative districts. We do this using the geospatial statistical technique of Bayesian universal kriging, which uses the locations of survey respondents, as well as population covariate values, to predict ideology for simulated citizens in districts across the country. In doing this, we improve on past research that uses the kriging technique for forecasting public opinion by incorporating Alaska and Hawaii, making the important distinction between ZIP codes and ZIP Code Tabulation Areas, and introducing more precise data from the 2010 Census. We show that our estimates of ideology at the state, congressional district, and state legislative district levels appropriately predict the ideology of legislators elected from these districts, serving as an external validity check.
We develop a theoretical framework that accounts for complex dependence in foreign direct investment (FDI) relationships. Conventional theories of FDI focus on firm-, industry-, country-, or dyad-level characteristics to account for cross-border capital movements. Yet, today's globalized economy is characterized by the increasing fragmentation and dispersion of production processes, which gives rise to complex dependence among production relationships. Consequently, FDI flows should be represented and theorized as a network. Specifically, we argue that FDI relationships are reciprocal and transitive. We test these hypotheses along with conventional covariate determinants of FDI using an exponential random graph model (ERGM) for weighted networks. We find that FDI networks exhibit strong reciprocity and transitivity. Our network approach to studying FDI provides new insights into cross-border investment flows and their political and economic consequences, and more generally the dynamics of globalization. In addition to our substantive findings, we offer a broad methodological contribution by introducing the ERGM for count-weighted networks in political science.
Paradoxically, doing corpus linguistics is both easier and harder than it has ever been before. On the one hand, it is easier because we have access to more existing corpora, more corpus analysis software tools, and more statistical methods than ever before. On the other hand, reliance on these existing corpora and corpus linguistic methods can potentially create layers of distance between the researcher and the language in a corpus, making it a challenge to do linguistics with a corpus. The goal of this Element is to explore ways for us to improve how we approach linguistic research questions with quantitative corpus data. We introduce and illustrate the major steps in the research process, including how to: select and evaluate corpora, establish linguistically-motivated research questions, observational units and variables, select linguistically interpretable variables, understand and evaluate existing corpus software tools, adopt minimally sufficient statistical methods, and qualitatively interpret quantitative findings.