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51.
Comparing products using data envelopment analysis 总被引:3,自引:0,他引:3
Using an application of linear programming known as Data Envelopment Analysis (DEA), a method is described to compare products which vary in excellence along a number of dimensions, and for each of which there might be a number of associated “costs”. The method is illustrated by comparing published benchmarks of 37 computer printers. Potential uses of a DEA analysis of products might be: to assist corporate buyers who may need to reconcile a diversity of present and future uses in one standardised purchase; in competitor analysis; in determining unexplored market niches; and as a normative model of product excellence against which product purchasing behaviour could be compared. 相似文献
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Summary The randomized response technique was used in a household survey of approximately 2,000 rural and 2,000 urban households in Misamis Oriental Province in the southern Philippines in order to determine the extent of purposive concealment of death. The estimated number of deaths deliberately not revealed to the interviewers was 50 per cent or higher. Adjusted crude death rates of 11.5 and 13.4 per 1,000 population were computed for urban and rural areas, respectively, by adding estimated concealed deaths to deaths reported to the interviewers. Application of stable population techniques and of model life tables suitable to the Philippine setting, while not permitting definite conclusions, provided reasons for believing that these adjusted death rates are close to the true mortality situation in the study areas. Randomized response data further indicate that approximately 75 per cent of urban deaths and 47 per cent of rural deaths of the population studied were not registered with municipal authorities. The authors postulate that failure to register deaths with municipal authorities, together with fear of legal involvement if this failure becomes known outside the immediate neighbourhood, is a major reason for the purposive concealment of death in household surveys. 相似文献
54.
Using data from the 1980 National Election Study, we examinethe claims (1) that those voters who shifted to Ronald Reaganin 1980 ("New Republicans") were drawn disproportionately fromthe lower to middle strata of the population: (2) that theywere social conservatives motivated by issues like abortionand ERA: and (3) that they were more religious and alienatedfrom the federal government than average. Our results stronglysuggest that all of these assertions are false and thus questionthe emergence of a "neopopulist" or "Middle American Radical"political constituency on the right wing of American politics.Our findings also have implications for prominent theories aboutconservative political movements and about the changing natureof party politics in a postindustrial society. 相似文献
55.
Claudia Bazzani Vincenzina Caputo Rodolfo M. Nayga JR. Maurizio Canavari 《Economic inquiry》2017,55(1):383-396
In choice experiments, it is commonly assumed that individuals make choices in static and certainty decision‐making conditions. Real‐world choices, however, are usually made in a dynamic setting. Committing a purchase decision under conditions of uncertainty might have a “Commitment Cost” (CC). In this study, we test CC theory using a nonhypothetical choice experiment. Specifically, we test whether choice behavior and willingness to pay estimates differ when individuals have the option to gain present or delayed information or reverse the transaction. Our results suggest that the construction of a dynamic decision context can be relevant in the design of choice experiments. (JEL C90, C93, Q18) 相似文献
56.
Many hospitals have historically used a fixed staffing policy for allocating nursing personnel, in which the daily demand in each ward is met by nurses who are permanently assigned to the specific wards. In recent years, the concept of variable staffing has been proposed as a means of increasing manpower efficiency. A variable staffing policy is one which provides for staffing adjustments to meet work load through the use of a common pool of cross-trained nurses. In this paper, a model is formulated to evaluate the relative benefits of variable and fixed staffing policies. Results from a Monte Carlo evaluation of the model demonstrate how the hospital administrator can assess the sensitivity of savings to changes in policy and operating parameters. Several criteria which an administrator might adopt for equating levels of patient care under alternative staffing schemes are suggested and studied. The proposed method of analyzing benefits of alternative allocation procedures shows promise for evaluating policy choices in hospitals, as well as other service organizations with similar characteristics. 相似文献
57.
Integrated manufacturing operations typically are organized along hierarchical lines. Characterized by product aggregation and time horizon, hierarchical decompositions aim at easing problems associated with the complexity and scale of the manufacturing function taken as a whole. Static models have been developed and employed which facilitate the analysis and functioning of these organizations. Existing models are valuable aids in assisting goal-planning functions, but provide little guidance for directing the pursuit of goals. This paper presents a new hierarchical model of integrated manufacturing operations based on concepts of management control. The model is congruent with commonly used static planning models, while at the same lime depicting real-time, goal-achievement efforts within a dynamic operating environment. Emphasizing the interactions between goal planning and goal achievement, the dynamic model provides a means of assessing the effects of decentralization and autonomy on the goal planning and achievement process. The model is used to identify two resource-consuming chain reactions linked to replanning and goal pursuit within the hierarchy. A simple example based on the dynamic extension of a typical static decomposition illustrates the key findings. 相似文献
58.
William B. Abernathy 《Journal of Organizational Behavior Management》2014,34(4):235-254
A discussion of the need for organizational behavior management practitioners to shift their application paradigm from a dyadic perspective to a systems perspective is presented. Such a shift would improve the identification of performance improvement opportunities, reduce the effects of unintended contingency interactions, and help ensure sustainable improvement efforts. Nine performance system tools are described that assist the analyst in the design of a performance system and its long-term management and maintenance. A manufacturing case study describing the application of these tools is provided. 相似文献
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60.
EVALUATING THE EFFECTIVENESS OF CHILD SAFETY SEATS AND SEAT BELTS IN PROTECTING CHILDREN FROM INJURY
Young children are required to use child safety seats, and the age threshold at which children can legally graduate to seat belts has steadily increased. This article tests the relative effectiveness of child safety seats, lap‐and‐shoulder seat belts, and lap belts in preventing injuries among motor vehicle passengers aged 2–6 yr. We analyze three large, representative samples of crashes reported to police, as well as linked hospital data. We find no apparent difference in the two most serious injury categories for children in child safety seats versus lap‐and‐shoulder belts. Child safety seats provide a statistically significant 25% reduction in the least serious injury category. Lap belts are somewhat less effective than the two other types of restraints but far superior to riding unrestrained. (JEL I18) 相似文献