2,279,917 research outputs found
Can Habit Formation be Reconciled with Business Cycle Facts?
No full textMany asset pricing puzzles can be explained when habit formation is added to standard preferences. We show that utility functions with a habit then gives rise to a puzzle of consumption volatility in place of the asset pricing puzzles when agents can choose consumption and labor optimally in response to more fundamental shocks. We show that the consumption reaction to technology shocks are too small by an order of magnitude when a utility includes a consumption habit. Moreover, once a habit in leisure is included, labor input is counterfactually smooth over the cycle. In the case of habits in both consumption and leisure, labor input is even countercyclical. Consumption continues to be too smooth. 1 1 Introduction In recent years, models with habit formation 1 have been quite successful in linking consumption with asset prices. In particular, Constantinides (1990) has shown that once a habit is added to the standard model with power utility and lognormal distribution, the equity p..
Research Statement for Ranjita Bhagwan
No full textdaptively determine appropriate resources and mechanisms required to provide a specified level of availability. The focus of my research has been the design and implementation of TotalRecall, a highly available peer-to-peer storage system that automatically manages availability in a dynamically changing environment [6]. By adapting the degree of redundancy and frequency of repair to the distribution of failures, TotalRecall guarantees user-specified levels of availability while minimizing the overhead needed to provide these guarantees. To understand the requirements of such an adaptive system and to develop an efficient design for it, I first needed to answer two questions: Firstly, what are the characteristics of host availability in typical peer-to-peer systems? Secondly, given certain host availability characteristics, how much redundancy is required to tolerate host failures? My first steps addressed these questions, and the insight gained by answering them strongly guided the d
THE RELATIONSHIP BETWEEN POLICE AND OTHER GOVERNMENT AGENCIES: RECENT CHANGES IN PERSPECTIVE IN QUEENSLAND
No full textThis paper examines the changing relationships between police and other government agencies, in the context of recent experience in Queensland. Three aspects of the changing relationships are examined: divesting police of extraneous duties; responsibility for all government agencies to consider the law enforcement impact of their policies; and the moves for police to work alongside and play a key role in a broad range of policy and program developmen
The Reality of Sustainable Agriculture in Recent Years
No full textOne of the greatest current challenges for the farming sector is to find a compromise among agricultural
production to deal with the increased demand worldwide and the environmental impacts for more sustainable development. This is, in fact, a concern for the policymakers and international organisations
and led FAO (Food and Agriculture Organization of the United Nations) to propose the CSA (climatesmart agriculture) approach. This chapter intends to analyse the impacts of recent events, namely the
Covid-19 pandemic, on the sustainability of agriculture worldwide. Data from OECD (Organisation for
Economic Co-operation and Development) were considered for the agricultural land and nutrient balance over the period 2019-2021. There is a long way to run to improve the sustainability of agriculture
worldwide and the expectation about the contributions of the pandemic to open opportunities to mitigate
the environmental impacts from the farming sector are not yet visible.info:eu-repo/semantics/publishedVersio
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
Periocular capillary hemangioma: management practices in recent years
No full textJo Anne Hernandez,1,3,4 Audrey Chia,2 Boon Long Quah,1,2 Lay Leng Seah1,2 1Department of Ophthalmology, Kandang Kerbau Women's and Children's Hospital, Singapore; 2Singapore National Eye Centre, Singapore; 3National Healthcare Group Eye Institute, Tan Tock Seng Hospital, Singapore; 4Department of Ophthalmology, Cardinal Santos Medical Center, San Juan, Manila, Philippines Purpose: To present a case series on the management options for capillary hemangiomas involving the eyelid and orbit. Methods: This is a retrospective chart review of clinically diagnosed capillary hemangioma cases involving the periocular region treated at two local eye institutions. The patients' demographics and clinical presentation – including visual acuity, refractive error, periorbital and orbital examinations, and ultrasound and magnetic resonance imaging findings – were reviewed. The clinical progression, modalities of treatment, and treatment outcomes were studied. Results: Sixteen cases of capillary hemangiomas involving the eyelid and orbit were studied. The mean age at consultation was 9.6 months (range: 1 month–72 months). The majority were females (75%), with 50% presenting as upper-eyelid hemangiomas and the remaining as lower-eyelid (38%) and glabellar (12%) lesions. Combined superficial and deep involvement was common (64%). Cases whose lesions were located at the upper eyelid or superior orbit led to amblyopia (25%). Fifty-six percent of cases (9/16) were managed conservatively, and 44% (7/16) underwent treatment with either single-agent (n = 4) or combined treatments (n = 3). Conclusion: Close monitoring of visual development and prompt institution of amblyopia therapy for children with periocular capillary hemangiomas generally preserve vision. Extensive lesions that affect the visual axis require local and systemic treatments, alone or in combination, in order to reduce the size and impact of lesions on the eyeball, to reduce induced refractive error and visual occlusion, and to prevent the development of amblyopia, in order to achieve good visual outcomes. Keywords: vascular, vascular malformation, bleomycin, propranolol, prednisolone, amblyopi
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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