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131.
George Kent 《Food Policy》1988,13(4)
The author reviews the potential for improved use of fisheries resources in nine southern African countries. These countries have serious problems of malnutrition and the author concludes that fisheries resources could make a substantially greater contribution to nutrition. Supply, processing and distribution of fisheries products are reviewed, and the benefits of improved kapenta and aquaculture production are discussed. 相似文献
132.
133.
Christopher L. Erickson Catherine L. Fisk Ruth Milkman Daniel J. B. Mitchell & Kent Wong 《英国劳资关系杂志》2002,40(3):543-567
We examine an important recent organizing success of the US labour movement: the 'Justice for Janitors' campaign in Los Angeles. This campaign has spanned a complete business cycle and shows the union's capacity for growth over time. It illustrates the potential for unions to overcome pro–employer bias of labour laws, as well as their efficacy in appealing to the wider public. It exposes the importance of building coalitions, as well as the value of union analysis of legal, industrial, and political conditions. Our analysis suggests conditions under which unions might survive and thrive in the service sector in the twenty–first century. 相似文献
134.
Summary. This paper examines the proposition that homotheticity is equivalent to the property that (e.g., in the context of a production
function) the marginal rate of substitution is constant along any ray from the origin. This claim is made in many places,
but hitherto the prerequisites have not been stated explicitly. In the present contribution it is demonstrated that an additional
condition is required for the claim to hold. We present a theorem that achieves equivalence by also assuming ‘nowhere ray
constancy’. It turns out that this condition is implied by assumptions often made, e.g., in production theory. Further, a
complete characterization is given of the class of functions that satisfy ray constant marginal rates of substitution or,
somewhat more generally, a condition of ray parallel gradients. In addition to homothetic functions this class contains functions
homogeneous of degree 0 (i.e., ray constant) and functions which are homothetic in disjoint regions separated by regions of
ray constancy.
Received: November 5, 1999; revised version: October 31, 2000 相似文献
135.
Agency and public choice theories, though commonly used, can only provide a static approach to the study of privatization and often neglect the cultural, contextual and organizational settings of the enterprises affected by privatization. The authors present a new model which can be used to understand the organizational processes involved in a successful privatization. This article analyses the academic literature on privatization, describes the cases of two privatized Swedish companies and then offers suggestions for further research. 相似文献
136.
Employing labor-supply theory to measure the reward value of electrical brain stimulation 总被引:1,自引:0,他引:1
A model drawn from labor-supply theory is shown to provide a good account of time-allocation decisions taken by rats working for rewarding brain stimulation. The model makes it possible to infer, from behavioral data, the growth of the rewarding effect as a function of stimulation strength. Measurement of this function provides information about the stage of the reward circuitry where drugs or lesions alter the rewarding effect. The labor-supply model is used to illustrate how approaches drawn from economics, psychology, and neuroscience can inform each other. The model is linked to a set of psychological processes, including those responsible for transformation of the transient neural signal produced by the rewarding stimulation into an enduring record of payoff, estimation of a mean effort price, delay discounting, and estimation of the substitutability of work and leisure goods. All of these processes seem germane to economic behavior. 相似文献
137.
W. Kent Anger Jeff Stupfel Tammara Ammerman Alys Tamulinas Todd Bodner Diane S. Rohlman 《International Journal of Training and Development》2006,10(4):269-284
The suitability of computer‐based instruction (CBI) for workers with limited education was evaluated in an Hispanic orchard workforce that reported little computer experience and 5.6 mean years of formal education. Ladder safety training was completed by employees who rated the training highly (effect size [d_gain] = 5.68), and their knowledge of ladder safety improved (d_gain = 1.45). There was a significant increase (p < 0.01) in safe work practices immediately after training (d_gain = 0.70), at 40 days post training (d_gain = 0.87) and at 60 days (d_gain = 1.40), indicating durability. As in mainstream populations, reaction or affective ratings correlated well with utility ratings, but not with behavior change. This demonstrates that an agricultural workforce with limited formal education can learn job safety from CBI and translate the knowledge to work practice changes, and those changes are durable. 相似文献
138.
Tor Eriksson 《Economics of Transition》2005,13(4):659-677
Despite the crucial role played by managers in changing the functioning of labour markets in transition economies, research on the determinants of executive pay and CEO turnover in these countries is almost non‐existent. The current paper aims to add to this minuscule literature. For this purpose I make use of a unique dataset containing relevant firm–manager information from the Czech and Slovak Republics in the late nineties. This allows me to examine the influence of individual and in particular firm characteristics, such as, size, ownership type, industry and region, as well as corporate performance on chief executive compensation levels and changes therein and on the extent of executive turnover. 相似文献
139.
The assumption that rational expectations always lie on a convergent path is subject to an empirical test using the German hyperinflation data. The estimation technique employs a Kalman filtering algorithm. After presenting a brief background for the convergent expectations problem and a derivation of the various model specifications, a generalized expectations model and its attendant Kalman filtering estimation technique are discussed. Additional estimation details and empirical results are then presented. Based on an assumption of normally distributed errors, the null hypothesis of convergent paths is rejected in all situations involving a deterministic specification of the evolution of the unobserved parameter which characterizes the convergent path. The same null hypothesis is rejected in four of the six cases corresponding to a stochastic specification of the evolution of the unobserved parameter which characterizes the convergent path. A discussion of these findings, their economic significance, and suggestions for further research concludes the paper. 相似文献
140.
Internal governance structures and earnings management 总被引:2,自引:0,他引:2
This paper investigates the role of a firm's internal governance structure in constraining earnings management. It is hypothesized that the practice of earnings management is systematically related to the strength of internal corporate governance mechanisms, including the board of directors, the audit committee, the internal audit function and the choice of external auditor. Based on a broad cross‐sectional sample of 434 listed Australian firms, for the financial year ending in 2000, a majority of non‐executive directors on the board and on the audit committee are found to be significantly associated with a lower likelihood of earnings management, as measured by the absolute level of discretionary accruals. The voluntary establishment of an internal audit function and the choice of auditor are not significantly related to a reduction in the level of discretionary accruals. Our additional analysis, using small increases in earnings as a measure of earnings management, also found a negative association between this measure and the existence of an audit committee. 相似文献