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21.
Transient processes important to understanding technical change are modeled using a time-varying version of the Sequential Interindustry Model, SIM. A simple process of technical change is explored, where a new production technique replaces an old one for one of an industry's production processes. Using several measures internal and external to the industry the model can help in understanding the complex processes of technical change, point to difficulties in their analysis, and suggest guidance to further examinations. An earlier version of this paper was presented at the Eighth International Conference on Input-Output Techniques, Sapporo, Japan, July 1986. 相似文献
22.
We examine the effects of thin trading on the specification of event study tests. Simulations of upper and lower tail tests are reported with and without variance increases on the event date across levels of trading volume. The traditional standardized test is misspecified for thinly traded samples. If return variance is unlikely to increase, then Corrado's rank test provides the best specification and power. With variance increases, the rank test is misspecified. The Boehmer et al. standardized cross-sectional test (Event-study methodology under conditions of event-induced variance, Journal of Financial Economics 30, pp. 253–272) is properly specified, but not powerful, for upper-tailed tests. Lower-tailed alternative hypotheses can best be evaluated using the generalized sign test. 相似文献
23.
There has been significant concern in auditing about the effects of relying on prior working papers in planning audit procedures (“anchoring”). This study employed an experiment with varying information sets: prior working papers, current year information and “scenario” (summarized prior year information). Practicing auditors were asked to design a substantive audit program for a case where changes in the client's environment dictated additional procedures. A consensus program from three partners was used as a bench-mark. Experimental groups were about equally adaptive to the changing environment. However, auditors provided with prior working papers demonstrated lower efficiency. The scenario group exhibited both high relative effectiveness and efficiency, while current information subjects displayed the lowest overall level of performance. 相似文献
24.
PD Dr. Klaus Arnold 《Publizistik》2008,53(4):488-508
To determine the various performance criteria concerning journalism it is reasonable to develop a broad concept, which integrates the different theoretical approaches. In a functional and system-oriented perspective, fundamental performance criteria can be based on the social function and the specific code of journalism, which emerged in an historical process of mutual observation of journalists and audiences. In a normative-democratic perspective, performance criteria can be derived from societal and human values codified in diverse regulations. However, in this regard it has to be taken into account that specific claims of the political subsystem also play an important role. Finally from an audience and action oriented viewpoint, it is important to keep in mind that journalistic communication must be useful and applicable in the world the audience lives in. 相似文献
25.
David K. Levine Federico Weinschelbaum Felipe Zurita 《International Economic Review》2010,51(2):497-507
When a firm is forced to pay abnormally high wages, hiring transfers rents. This effectively endows the employer with the ability to grant favors, and he may wish to do so even at some cost to efficient production. We refer to this as the brother‐in‐law effect. This article analyzes its consequences. When the brother‐in‐law effect is due to unionization, decisions regarding both the number and type of workers employed could be inefficient; overemployment could obtain even relative to the workforce that would be employed without unionization. We also identify cases in which nepotism improves efficiency. 相似文献
26.
Mark J. Arnold Kristy E. Reynolds Michael A. Jones Meltem Tugut Colin B. Gabler 《心理学和销售学》2014,31(11):958-975
Previous research indicates that consumers differ in their evaluation of and response to similar retail experiences. Reporting results from three studies, the current research proposes consumers’ regulatory focus intensity as one possible source of this variation. Study 1 examines how consumers’ regulatory focus intensity influences their in‐store behavioral intentions following good and bad shopping experiences. Study 2 illustrates how consumers’ regulatory focus intensity impacts their future loyalty intentions after satisfactory retail experiences. In Study 3, the researchers explore how retailers can employ regulatory framing in their communication messages to increase the future loyalty intentions of those chronically less loyal consumers. Lastly, theoretical and managerial implications as well as limitations of this research are discussed. 相似文献
27.
We present a test to determine whether variances of time series are constant over time. The test statistic is a suitably standardized maximum of cumulative first and second moments. We apply the test to time series of various assets and find that the test performs well in applications. Moreover, we propose a portfolio strategy based on our test which hedges against potential financial crises and show that it works in practice. 相似文献
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29.
Namibia has a long history of providing a universal and non-contributory old age pension, child grants using means testing and quasi-conditionalities, and other cash transfers. Multivariate analysis presented in this paper confirms that these transfers play an important role in alleviating poverty, especially for the very poor. The poverty-reducing effects of the child grants are likely to increase further as access is being rapidly expanded. However, the impact in terms of reducing Namibia's extremely high inequality is limited. The targeting of the cash transfers towards the poorest groups takes place through two main channels. For the child grant, targeting occurs as a result of the orphan status eligibility criteria, as orphans are over-represented in lower-income households. For the universal social pension, it appears that some of the relatively less poor do not receive it even if they are eligible. Means testing of child grants appears ineffective, even without considering administrative costs. 相似文献
30.
Member clubs in professional sporting leagues can increase joint incomes by adopting measures that equalise playing performance. In the English Football League some degree of performance equalisation has traditionally been achieved by restricting financial competition and through income sharing arrangements. Elite clubs in the League have recently secured changes in these arrangements which will increase their dominance in the industry. This paper analyses the affects of these changes and of shifts in market demand on the recent financial positions and cash flows of ten of the most and ten of the least successful clubs, and concludes that collective management policies in the League are contrary to the normal economic objectives of a sporting league. 相似文献