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51.
We simulate a phased increase in the U.S. investment rate using a translog production function with technical progress (disembodied and/or embodied). We assume there will be an absorption lag implying that factors are underutilized during the transition to a higher investment rate. We find that the “sacrifice time” (the time that elapses until consumption surpasses the value it would have had under the initial investment rate) is roughly nine years. Across alternative specifications, phase-in periods, and absorption lags, the sacrifice time varies from seven to 13 years, and is insensitive to the percentage increase in the investment rate. With a three-year phase-in of a 20 percent increase in the investment rate with a one-year absorption lag, the average “ecade gain” in output (the percentage gain at the end of a decade) is roughly 4 percent; the decade gain in consumption, 0 percent; the five-decade gain, 10 percent in output and 6 percent in consumption; and the “investment rate return” (the internal rate of return on a permanent increase in the investment rate), 13 percent.  相似文献   
52.
How is the French labor market for lads organized (recruitment, careers, personnel management, retraining)? What changes are under way? A recent phenomenon - the vanishing of young lads with diplomas - helps answer these questions. Can this be explained other than by the discrepancy between dreams about this job and on-the-job reality? The latter can be understood only in relation to the economic and social changes in this working environment that have, in particular, threatened trainers’ positions. This happened during a period when the schooling of youth lasts longer and ends with a diploma even though this sector cannot absorb these young people. This difficult situation has several explanations. Working conditions have worsened (increasing precariousness, more stress, career obstructions) while young people have become more demanding, more critical and more qualified. Meanwhile, the old paternalistic system for managing personnel is falling apart.  相似文献   
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This paper seeks to give a sense of the diversity of work that falls within the boundaries of 'cultural citizenship'– a term it locates as emerging from the problematisation of traditional citizenship models by issues of identity and mediation. This paper outlines three distinct strands of cultural citizenship theory, which respectively emphasise multiculturalism, the politics of cultural texts, and dialogical communication. Subsequently, this paper conducts a brief analysis and critique of these strands, enabled by an interrogation of the ways in which they each define and deploy the term 'culture'. It is argued that for cultural citizenship to develop a more coherent terminological 'face', a balance must be struck between a commitment to specificity, and the appeal of abstracted re-imaginings of civil society.  相似文献   
55.
Miles and Snow, among others, argue that strategy content isan important influence on organizational performance. Theirtypology, applied recently to public organizations in the UnitedKingdom, divides strategic actors into four general types: prospectors,defenders, analyzers, and reactors. This article begins by integratingwork on strategy content or strategic management into the O'Toole-Meierformal theory of public management. This study shows that strategycontent is a subset of generally accepted management functionsin public organizations. The article then proceeds to test thestrategic management concepts in a large, multiyear sample ofpublic organizations. The results show that strategy can beseparated out from other elements of management for a distinguishableassessment of its impact on organizational performance. Unlikethe predictions of Miles and Snow and the empirical findingsof Boyne and Walker, however, we find that the defender strategyis the most effective for the primary mission of the organizationand that the prospector and reactor strategies work best inregard to the goals of the more politically powerful elementsof the organization's environment.  相似文献   
56.
This paper considers the estimation of multivariate random effects that are measured with error, but for which there are no replications. Using structural simplification of the correlation of the data, separate estimates are generated for the covariance of the random effects and the covariance of the error. An estimator of the random effects based on a truncated eigen structure is defined, and matrix mean squared error and its trace (risk) are analyzed, with comparison to the maximum likelihood estimator (m.l.e) and also to the Stein-like estimator of Efron and Morris (1972). It is shown that the estimator has risk which is smaller than the risk of the maximum likelihood estimator and the Efron-Morris estimator in most cases.  相似文献   
57.
In Quebec, since the adoption in 2002 of the Act instituting civil unions and establishing new rules of filiation, same sex partners can be officially recognized as the parents of a child. They are invested with all the rights and obligations related to parentage and parental authority, including naming. From a qualitative analysis of interviews realized in 2014 in Quebec with 18 mothers and fathers in lesbian and gay couple relationships, this article examines the nomination processes of children born from gay or lesbian couples in terms of the modalities of entry into parenthood (biological, social, adoptive). Beyond innovations and specificities related to means of family formation where filiation is only partially or not at all rooted in biology and their categorization as same‐sex families, the name passed to the child is often considered by those parents as a means to consolidate “social” parental statuses and fraternal links.  相似文献   
58.
Low back pain (LPB) is a major health problem among military rotary-wing aircrews worldwide. In order to define the etiology and propose remedies to LBP in helicopter aviators a review and critique of the literature was conducted. In-flight sitting posture and vibration generated by the aircraft were identified as high risk factors for LBP. Consequently, researchers recommended ergonomic modifications to the crew stations. The efficacy of these technical interventions has not been proven. As well, these design changes are not financially practical. Following an in depth kinesiological analysis of the physical demands of this type of flying, and preliminary experimentation, an alternative aeromedical approach focusing on the aircrew rather than the craft is presented. The authors propose a set of flight-specific exercises that might effectively deal with this problem. A thorough testing of this approach is envisioned.  相似文献   
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60.
We consider the problem of ranking distributions of opportunity sets on the basis of equality. First, conditional on a given ranking of individual opportunity sets, we define the notion of an equalizing transformation. Then, assuming that the opportunity sets are ranked according to the cardinality ordering, we formulate the analogues of the notions of the Lorenz partial ordering, equalizing (Dalton) transfers, and inequality averse social welfare functions – concepts which play a central role in the literature on income inequality. Our main result is a cardinality-based analogue of the fundamental theorem of inequality measurement: one distribution Lorenz dominates another if and only if the former can be obtained from the latter by a finite sequence of rank preserving equalizations, and if and only if the former is ranked higher than the latter by all inequality averse social welfare functions. In addition, we characterize the smallest monotonic and transitive extension of our cardinality-based Lorenz inequality ordering. Received: 2 May 1995 / Accepted: 11 October 1996  相似文献   
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