126,474 research outputs found

    Identification of principal causal effects using secondary outcomes.

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    Unless strong assumptions are made, identification of principal causal effects in causal studies can only be partial and bounds (or sets) for the causal effects are established. In the presence of a secondary outcome, recent results exist to sharpen the bounds that exploit conditional independence assumptions (Mealli and Pacini, 2012). More general results, though not embedded in a causal framework, can be found on concentration graphs with a latent variable (Stanghellini and Vantaggi, 2013). The aim of this paper is to establish a link between the two settings and to show that adapting results contained in the latter paper can help achieving identification of principal casual effects in studies with more than one secondary outcome

    Long Term Care and the Role of In kind Transfers. Economic Analysis and Empirical Investigation

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    This chapter develops a simple economic model to analyze the role of in kind transfers, which can be interpreted as professional care to elderly people with severe disabilities. It is assumed that these people live with their children (in working age) who provide them health care: the amount of health care is determined by free public provision, by additional professional care bought in the market or by informal care directly given by the children in terms of leisure. The choice between professional and informal care depends on the wage rate and on the ``productivity'' of leisure in providing health care as compared to professional care. Within this model the effect of an increase of in kind transfers is examined combined with an equal cut in cash transfers: this can be interpreted as a generalized cut in pensions whose {\it{ratio}} could be found in a sort of intragenerational solidarity between elderly people with and without severe disabilities. The chapter deals with different alternatives and the conditions assuring a benefit to families with elderly people with severe disabilities, which is such to more than compensate the loss imposed to healthy elderly people. Moreover, the conditions assuring a budget surplus are derived: these stem from the incentive such policies give to increase labour supply diverting leisure from informal care. In order to confirm some of the assumptions of the economic model, we exploit microdata coming from different sources (primarily SHARE and EUSILC) to provide a statistical insight. We investigate to what extent available official statistics help in detecting various aspects of elderly care and estimate a statistical model for the probability of turning to professional home care, conditional on individual and household characteristics

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

    Active Labor Market Policies and Transitions to Permanent Employment. The Potential of Administrative Data

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    This chapter aims at shedding some light on the effectiveness of existing Active Labor Market Policies. The main goal of this contribution is to show how it is possible to combine three sources of administrative data, namely the system of Compulsory Communications (Comunicazioni Obbligatorie CO), the archives of local agencies in charge of active labor market policies, and the equivalent economic/financial status indicator (EES) data drawn from fiscal assistance centers. We also discuss possible identification strategies to assess the effectiveness of active labor market programs which exploit discontinuity stemming from labor market reforms. Finally, we use event history analysis to model the time to exit to a permanent job as a function of individual characteristics previous labor experience and participation to programs

    Dispelling the Myths Behind First-author Citation Counts

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    We 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

    Lawrence Anthony Retrospective: September 13-Octoer 26, 1996, Rhodes College, Clough-Hanson Gallery, page

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    This image was scanned from the catalogue that was created by Marina Pacini, Director of the Clough-Hanson Gallery for a exhibition of Anthony's work in 1996.This sculpture entitled Time Past and Time Future Contained in a Peanut Butter Sandwich appeared in the catalogue created by Marina Pacini, Director of the Clough-Hanson Gallery for an exhibition of Anthony's work in 1996. The piece is part of the Collection of Stephen B. Crump
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