1,721,036 research outputs found
Household Decision Making and Valuation of Environmental Health Risks to Parents and Their Children
No full textThis paper empirically discriminates between household decision-making models for estimating parents’ willingness to pay for health risk reductions for their children and for themselves. Models are tested using data from a stated preference survey involving 432 matched pairs of married parents. Analysis builds on a collective model of resource allocation that incorporates household production of perceived health risks and allows for differences in preferences and risk perceptions between parents. Results are consistent with Pareto efficiency within the household. Thus, for a given proportionate reduction in health risk, (1) parents are willing to pay equal amounts at the margin to protect themselves and the child and (2) parents’ choices for their children are based on household valuations, rather than individual valuations. The marginal willingness to pay of mothers and fathers for health risk protection appears insensitive to shifts in their relative contributions to the household budget
THE EFFECT OF THE NUMBER OF CHOICE SETS ON RESPONSES IN A STATED CHOICE SURVEY
Full text linkAn important issue for the stated choice method is the effect of the number of choice sets on responses. Based on a study of this issue in a mailed survey, results indicate that the number of choice sets does not affect survey response rates or item non-response rates.Research Methods/ Statistical Methods,
Bibliographie rurale 2004-2006 (A-K)
Full text linkO. Abdallah, voir M. Pala. Ada ACOVITSIOTI-HAMEAU, Côté colline. Pratiques et constructions de l’espace sylvopastoral en Centre-Var, Marseille, Publications de l’Université de Provence, 2005, 400 p. Wiktor Adamowicz, voir Wuyang Hu. Hanne Kirstine Adriansen, voir Lene Møller Madsen. Nigel E. AGAR, Behind the Plough: Agrarian Society in Nineteenth-Century Hertfordshire, Hatfield, Hertfordshire Publications, an imprint of the University of Hertfordshire Press, 2005, 193 p. Franck Aggeri, « L’en..
Bibliographie rurale 2004-2006 (A-K)
Full text linkO. Abdallah, voir M. Pala. Ada ACOVITSIOTI-HAMEAU, Côté colline. Pratiques et constructions de l’espace sylvopastoral en Centre-Var, Marseille, Publications de l’Université de Provence, 2005, 400 p. Wiktor Adamowicz, voir Wuyang Hu. Hanne Kirstine Adriansen, voir Lene Møller Madsen. Nigel E. AGAR, Behind the Plough: Agrarian Society in Nineteenth-Century Hertfordshire, Hatfield, Hertfordshire Publications, an imprint of the University of Hertfordshire Press, 2005, 193 p. Franck Aggeri, « L’en..
Paying for Permanence: Public Preferences for Contaminated Site Cleanup
Full text linkWe use conjoint choice questions to investigate people’s preferences for income and reductions in mortality risks delivered by contaminated site remediation policies. Our survey is self-administered using the computer by residents of four cities in Italy with severely contaminated sites. We estimate the Value of a Statistical Life to be about €5.6 million for an immediate risk reduction. If the risk reduction takes place 20 years from now, however, the implied VSL is about €1.26 million. The discount rate implicit in the responses to the conjoint choice questions is about 7%. People are willing to pay for permanent risk reductions, but not just any amount. Risk reductions in the nearer future are valued more highly than risk reductions in the more distant future. We also find that the VSL is “individuated,” in the sense that it depends on observable individual characteristics of the respondents, familiarity with contaminated sites, concern about the health effects of exposure to toxicants, having a family member with cancer, perceived usefulness of possible government actions, and the respondent’s beliefs about the goals of government remediation programs. Additional questions suggest that respondents discount lives, and do so at a discount rate in the ballpark of that implicit in their risk v. money tradeoffs.Value of a Statistical Life, Latent Risk Reductions, Individual Discount Rates, Conjoint Choice Questions, Contaminated Sites, Remediation
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Full text link“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
Full text linkWe 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
Assessing the Impacts of Forest Management on Aboriginal Hunters: Evidence from Stated and Revealed Preference Data
Full text linkAssessing the impacts of forest harvesting activities on Aboriginal People and incorporating these considerations into forest management plans is one of the challenges facing Canadian forest managers. In this study we model hunting behavior using stated and revealed preference data on subsistence use of wildlife resources. We use this framework to assess the impacts of forest management changes on Aboriginal People in northwestern Saskatchewan. Innovative approaches to data collection are employed to address challenges in obtaining data in these contexts. The econometric analysis combines the stated and revealed preference information to account for limitations in the revealed preference data. Monetary measures of welfare are examined, but we also assess resource compensation and zoning as mechanisms for addressing the impact of forest harvesting on subsistence wildlife use. The results also demonstrate the use of GIS information in linking forest management and Aboriginal resource use.Forest management
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