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21.
Abstract . The concept of “self-efficacy” is used to test the hypothesis that the negative self-concept of welfare recipients coniributes to long term psychological and material dependency on such assistance. Self-efficacy focuses on the extent to which people are able to produce and regulate events in their lives and is associated with self-imposed performance expectations. The extent to which the minority status which Blacks occupy in this society decreases self efficacy relative to Whites is examined, using information generated from structured interviews with 290 low income Black and White women. Operationalizing the concept of self-efficacy with appropriate controls for socioeconomic status, family composition and other factors results in finding no racial differences in sense of self-efficacy between Black and White women. Observed differences in patterns of receipt of public assistance are found to be more directly related to the persistence of structural barriers to upward mobility that have differential impacts on Blacks and Whites. Long term receipt of public assistance is found to adversely affect both self-worth and work orientation/perceived efficacy for all women.  相似文献   
22.
Competing theories on internal orientation versus external orientation are examined. The relevant theories are amalgamated and condensed into a number of competing propositions that are empirically tested. The findings suggest that the internally oriented businesses as well as the externally oriented businesses underperform the efficient, marketing oriented businesses.  相似文献   
23.
Large Bayesian VARs with stochastic volatility are increasingly used in empirical macroeconomics. The key to making these highly parameterized VARs useful is the use of shrinkage priors. We develop a family of priors that captures the best features of two prominent classes of shrinkage priors: adaptive hierarchical priors and Minnesota priors. Like adaptive hierarchical priors, these new priors ensure that only ‘small’ coefficients are strongly shrunk to zero, while ‘large’ coefficients remain intact. At the same time, these new priors can also incorporate many useful features of the Minnesota priors such as cross-variable shrinkage and shrinking coefficients on higher lags more aggressively. We introduce a fast posterior sampler to estimate BVARs with this family of priors—for a BVAR with 25 variables and 4 lags, obtaining 10,000 posterior draws takes about 3 min on a standard desktop computer. In a forecasting exercise, we show that these new priors outperform both adaptive hierarchical priors and Minnesota priors.  相似文献   
24.
Book Reviews     
Anthony J. Whitten, Sengli J. Damanik, Jazanul Anwar and Nazaruddin Hisyam, The Ecology of Sumatra, Yogyakarta: Gadjah Mada University Press, Second Edition, 1987, pp. 583 + xx.

Christine Drake, National Integration in Indonesia: Patterns and Policies, Honolulu: University of Hawaii Press, 1989, pp. 354 + xvi. Cloth: US$ 35.00.

Geoffrey B. Hainsworth (ed.), Environmental Linkages, Halifax: School for Resource and Environmental Studies, Dalhousie University, 1985, pp. 97.

R. Repetto et al., Wasting Assets: Natural Resources in the National Income Accounts, Washington DC: World Resources Institute, June 1989, pp. 69 + vi. Paper: US$10.00.

William E. James, Seiji Naya and Gerald M. Meier, Asian Development: Economic Success and Policy Lessons, Madison, Wisconsin: University of Wisconsin Press, 1989, pp. 281 + Xviii.

Robert B. Dickie and Thomas A. Layman, Foreign Investment and Government Policy in the Third World: Forging Common Interests in Indonesia and Beyond, London: MacMillan, 1988, pp. 240 + xxxi. £35.

Alan Gelb and Associates, Oil Windfalls: Blessing or Curse? New York: Oxford University Press, for the World Bank, 1988, pp. 357 + x. $32.50.

Benjamin Higgins, The Road Less Travelled: A Development Economist's Quest, History of Development Studies 2, Canberra: National Centre For Development Studies, the Australian National University, pp. 204 + x. Paper: A$20.00

BRIEFLY NOTED: Sarwar Hobohm, Indonesia to 1993: Breakthrough in the Balance, London: Economist Intelligence Unit, Special Report no. 2012, 1989, pp. 91, £190 for this Plus the Companion Report, Indonesia to 1991: Can Momentum be Regained?

Geoffrey Hainsworth and Hasan Poerbo (eds), Local Resource Management: Towards Sustainable Development, Halifax: School for Resource and Environmental Studies, Dalhousie University, 1987, pp. 69 + xii.

H.W. Dick, Industri Pelayaran Indonesia: Kompetisi dan Regulasi, Jakarta: LP3ES, 1990, 306 + xxv.  相似文献   

25.
Should government subsidize R&D and does it matter how these subsidies are allocated? We examine these questions in a dynamic model where R&D is described as sequential sampling from a distribution of new ideas. Successful discoveries affect future available resources and incentives for further R&D. Consequently, there may be under-investment in R&D. We study the effect of government interventions aimed at fostering growth through R&D. Calibrating the model with aggregate data from the Israeli business sector allows us to quantitatively compare two forms of support resembling those actually used to encourage R&D in the Israeli business sector: (i) an unrestricted subsidy that may be used at the recipients' discretion to finance R&D or other investments, (ii) a subsidy earmarked by the government for R&D activities only. While there is no theoretical way to determine which of the two subsidies will have a greater impact on search for new ideas and growth, we find that in the calibrated economy both subsidies have a significant but similar impact on the economy's output and TFP growth rates. Accordingly, in the case of the Israeli business sector, the incentives to conduct R&D were sufficiently strong, and no R&D-specific encouragement was needed. However, a sensitivity analysis reveals that for economies characterized by other parameter values this result may not be true. Correspondence to: B. Bental  相似文献   
26.
27.
Abstract.  This paper analyses the steel safeguards applied during 2001–3. Results reveal that for shareholders of U.S. steel companies safeguards generated positive 'abnormal' returns of approximately 6%. The cancellation of the safeguards resulted in wealth gains of about 5%. Steel shareholders experienced negative abnormal returns of −5% in response to the WTO ruling that the U.S. had violated WTO law. Our results are consistent with the neoclassical view that producers gain at the expense of consumers. Also, findings indicate that downstream-consuming firms that diversify production in NAFTA countries avert some trade policy risk associated with higher steel costs caused by safeguard protection.  相似文献   
28.
Leadership development and practice have traditionally been quite narrow, with a decided focus on the analytical realm of leadership. However, the contemporary climate of corporate scandal and resultant loss of societal confidence, coupled with the evolving demands, needs, and expectations of employees, point to the potential need for a more holistic approach to leadership. Thus, this article proposes how management education and leadership development programs can develop holistic leaders that are adept at operating in the analytical, conceptual, emotional, and spiritual domains of leadership practice. An integrated model for holistic leadership development and practice that addresses all four of these domains is proposed, and grounded in both established and emerging leadership development theory. Additionally, a leadership development classification scheme is proposed based on classroom, job, and organizational contexts.  相似文献   
29.
Conclusions For our purposes here, the analysis has been fruitful in that it has served to indicate and underscore in both general and specific terms the sources and determinants of migration movement and the destination of migrants. The qualitative analysis and the statistical test have led to several research conclusions. Both United States and Ghanaian migrants behave in accordance with the migration concepts examined. Common relationships between migration and economic opportunity are apparent. While push factors have generally initiated migratory movement among black Americans, particularly in respect to the South, both groups tend to move to regions with better economic opportunities. In both cases, migration is a negative function of distance, and a large labor force at the origin is a stimulus to out-migration at the origin.  相似文献   
30.
The Informational Role of Stock and Option Volume   总被引:8,自引:0,他引:8  
This article analyzes the intraday interdependence of orderflows and price movements for actively traded NYSE stocks andtheir Chicago Board Options Exchange (CBOE)-traded options.Stock net trade volume (buyer-initiated volume minus seller-initiatedvolume) has strong predictive ability for stock and option quoterevisions, but option net trade volume has no incremental predictiveability. This suggests that informed investors initiate tradesin the stock market but not in the option market. On the otherhand, both stock and option quote revisions have predictiveability for each other. Thus, while information in the stockmarket is contained in both quote revisions and trades, informationin the option market is contained only in quote revisions.  相似文献   
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