1,720,956 research outputs found
Does government or private support matter during crises? Panel data evidence from household response during the COVID-19 lockdown restrictions
Get PDFSocial protection policies are critical public policy measures to reduce livelihood vulnerability and enhance resilience amidst shocks. In this study, we exploit nationally representative panel data from Nigeria, the National Longitudinal Phone Survey (NLPS) on COVID-19, to assess the heterogeneous impact of different sources of support on households’ response to lockdown restrictions during the COVID-19 pandemic. We employed a Correlated random effect (CRE) model with cluster-robust standard errors for binary outcomes to examine the impacts of government support, remittance and private rental income on the probability of stopping work following the lockdown restrictions across different employment sectors - agricultural, informal and formal. We find mixed results across the three support sources and employment categories. Chiefly, government support and private rental income are positively associated with the probability of stopping work in the agricultural sector. However, these effects are negative and significant if working in the informal sector. Remittance appears not to play a significant role if working in the informal and formal sectors but has a significant negative association among households working in the agricultural sector. We also found heterogeneous effects of these sources of support depending on whether the households are in rural or urban areas. Our findings have important implications for social protection policies that target building resilience amidst shocks and risks to household livelihoods
The food security effect of a biomass value web concept among smallholder cassava households in Edo State Nigeria.
Get PDFAlthough cassava economic and development significance is gaining ground in Nigeria, the smallholding nature of production, processing, marketing and utilization persists. The smallholding and subsistence nature of most agricultural households in Nigeria means that welfare attributes may not be achieved. Operating within the concept of an economic based biomass value web is expected to increase both the productive capacity and food security outcome of the smallholders in the cassava web. The study examined the extent to which smallholders in the cassava system are involved in its biomass value web using a sample of 260 cassava smallholder households selected through a multistage sampling procedure in Edo state, Nigeria. The extent of participation in the value web was done using the composite score method; food security status of households was determined using the Foster, Greer and Thorbecke framework and covariates of food security determined through a probit regression. The results showed only about 28% of the smallholders are high level participants in the value web. While about 84% of the respondents are food insecure; food insecurity level is lowest among high level of participation in the value web. The probit regression shows that increasing levels of participation in the value web, education, and high monthly income increases food security, while household size, marital status and male headed household headship reduces food security. Policy implications suggests provision of infrastructure that help promote multiple involvement in the cassava value web
Does Collective Action Improve Gender Inclusiveness in Agrarian Change? Evidence from Cassava Based Smallholder Households in Nigeria
No full textDoes collective action have an enhancing effect on gender inclusiveness in the agrarian change matrix? This was investigated among 800 cassava-based smallholder households in a cross-sectional survey in Nigeria. Agrarian change was viewed as a function of access to productive resources (land, other assets), processes (Value addition and Nonfarm employment) and outcomes (income) in the study areas. Findings revealed that collective action was able to improve access to resources (land and assets) needed to drive the processes of agrarian change among male and female farmers. The study recommends strengthening institutions for collective action to drive positive and inclusive agrarian changes. 
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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