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101.
We show that given a value function approximation V of a strongly concave stochastic dynamic programming problem (SDDP), the associated policy function approximation is Hölder continuous in V. 相似文献
102.
The topography of metropolitan employment: Identifying centers of employment in a polycentric urban area 总被引:6,自引:0,他引:6
While it is well recognized that US metropolitan areas are polycentric, there is little consensus as to the appropriate method for identifying concentrations of employment within them. Existing methods suffer from strong assumptions about parametric form, misspecification, or reliance on local knowledge to calibrate model parameters. This paper introduces a new nonparametric method for identifying subcenters. Results indicate that this, more flexible, nonparametric approach yields greater accuracy with regard to both urban and suburban centers compared with other approaches. This approach should provide better data for the numerous topics that depend on the spatial accounting of employment within metropolitan areas. 相似文献
103.
Rosemary L. Walker 《Journal of Economics and Finance》2005,29(2):172-186
Previous research in the areas of tournaments, human capital, and learning theory have shown that promotion is a function
of human capital, experience, ability, and wage growth. These variables were used to estimate a Cox regression using data
from a single firm. The survival rates for a Cox regression and an up-or-out regression model are computed. The results suggest
that certain up-or-out models are valid even when the firm does not have such a policy and show that an up-or-out procedure
predicts the promotion and exit survival rates as well as a Cox regression. 相似文献
104.
The HIV/AIDS epidemic has focused increased attention on catastrophic illnesses in the workplace, and because of the stigmas associated with HIV/AIDS, it raises three primary concerns for organizations: (1) organizational avoidance of legal sanctions and litigation; (2) the maintenance of organizational legitimacy; and (3) organizational protection of employee rights. Although many organizations adopt legalistic responses to cope with these concerns, the analysis presented in this article suggests that while legalistic approaches function well to protect organizational interests in terms of both legal liability and legitimacy, the are only partially able to protect employee rights. Drawing upon the limited literature on HIV/AIDS in the workplace, this article presents an agenda for future research on organizational responses to HIV/AIDS. 相似文献
105.
Abstract . Developing countries face an inconsistency between the need for more equitable distribution of income and wealth between classes and groups and the goals of an industrial relations system in which the trade unions have a systematic commitment to allied political parties to support them in exchange for some control over economic and social policy, or where unions compete with parties for popular support of certain social and political goals. This is designated as 'political unionism' in contradistinction to 'business unionism' where unions support any party whose overall strategy and objectives are most compatible. The analysis shows that ‘political unionism’ led, in Jamaica and in Trinidad and Tabago, to lags in growth which make industrial relations reform a necessity of an effective program of social change. 相似文献
106.
Growth in U.S. agriculture is linked to the non-farm economy through domestic terms of trade and factor market adjustments. With almost stable input growth, the relatively large contributions from growth in Total Factor Productivity (TFP) are passed on to intermediate and final consumers in the form of declining real prices for primary farm products. The resulting net growth in the real value of farm output (GDP) is relatively low (0.25% per annum). The decomposition of TFP suggests that public agricultural stock of knowledge and infrastructure are LE" BORDER="0">robustlyLE" BORDER="0"> associated with TFP growth, while spill-overs from private agricultural and economy wide research and development (R and D) are positive but, relatively small. 相似文献
107.
Deborah L. Freedman Philip M. Podsakoff Scott B. MacKenzie 《Employee Responsibilities and Rights Journal》1993,6(2):115-137
The purpose of this study was to (a) compare the occupational sex stereotypes of 366 college students with those reported by Shinar in 1975, and (b) examine the relationships between demographic, experiential, and attitudinal variables and these occupational sex stereotypes. The results indicated a significant difference in occupational ratings from Shinar's study, with females' perceptions shifting more than males' perceptions. In addition, subjects' gender, tenure with female managers, and attitudes toward women as managers, were shown to be significant predictors of occuptational ratings. The implications of these findings for both employees and managers are then discussed. 相似文献
108.
We propose estimation of a stochastic production frontier model within a Bayesian framework to obtain the posterior distribution of single-input-oriented technical efficiency at the firm level. All computations are carried out using Markov chain Monte Carlo methods. The approach is illustrated by applying it to production data obtained from a survey of Ukrainian collective farms. We show that looking at the changes in single-input-oriented technical efficiency in addition to the changes in output-oriented technical efficiency improves the understanding of the dynamics of technical efficiency over the first years of transition in the former Soviet Union. 相似文献
109.
Group decision-making: Head-count versus intensity of preference 总被引:1,自引:0,他引:1
This paper puts forth a framework for reshaping the group decision-making process. The proposed framework extends from the usual one-issue-at-a-time decision-making to one that involves several related issues simultaneously. Weaknesses of the traditional majority voting mechanism are first identified, and then a different voting method that takes each individual voter's sentiment into account is discussed. Specifically, a decision-maker is asked to express his/her intensity of preference for the issues encountered. Three hierarchical structures—benefits, costs, and risks—are developed to evaluate the alternatives. Due to the nature of pairwise comparisons and synthesis, the proposed method is amenable to consensus building and has higher reliability and consistency. It can be used for candidate selection, e.g. governmental election, when a large population is involved. It is also effective for resource allocation and prioritization when a small group or business is concerned. We believe the proposed approach has potential for resolving deficiencies of the conventional voting mechanism, and can be applied to many real-world problems. Its implementation on the Internet is also discussed. 相似文献
110.
Collective Intentions and Collective Intentionality 总被引:1,自引:0,他引:1
By L.A. Zaibert 《American journal of economics and sociology》2003,62(1):209-232
A BSTRACT . John Searle believes that collective intentions are crucial to his philosophy, but he is yet to present a coherent account of these entities. No account whatsoever of collective intentions is presented in the book where Searle needs them the most ( The Construction of Social Reality ), or, for that matter, in any other of Searle's major books. The only account, and a defective one at that (so I argue), is found in a short, somewhat obscure article entitled "Collective Intentions and Actions," but in fact what Searle presents there is, at best, an account of collective actions , not of collective intentions. In light of Searle own ground-breaking work in the philosophy of mind, and in particular in light of his far-reaching analyses showing how intentions differ from related mental states, I argue that collective intentions are not consistent with Searle's philosophy of mind. 相似文献