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排序方式: 共有1359条查询结果,搜索用时 15 毫秒
181.
This study investigates long run overreaction and seasonal effects for Malaysian stocks quoted on the Kuala Lumpur Stock Exchange (KLSE), for the period 1986–1996. Stocks exhibiting extreme returns relative to the market over a three year period experience a reversal of fortunes during the following three years. There is also evidence that employing a contrarian trading strategy may yield excess returns. Of particular interest is the apparent existence of a Chinese New Year effect in both the level of market returns, and the overreaction profile for KLSE stocks. These seasonalities mirror the January-effect observed in US markets. 相似文献
182.
Simon Lalancette Frank Leclerc David Turcotte 《The Quarterly Review of Economics and Finance》2004,44(5):710
This study presents how Hydro-Quebec manages its short-term financial risks. The quantitative hedging model is articulated over forward and volatility premia and constrained by a yearly risk limit provided by the firm's Finance Committee. The hedging solutions provide the optimal linear hedging parameters and option strike levels. The second part of the paper is devoted to a theoretical analysis of the sensitivity of the optimal solutions to changes in the premia, by means of the general implicit function theorem. 相似文献
183.
Simon Wren-Lewis 《Journal of Macroeconomics》1984,6(1):89-95
In IS-LM models, government expenditure is usually fixed in real terms. In this short note, we examine some of the implications of nominal government expenditure targets for both model stability and comparative statics. When a fixed money supply policy is in operation, nominal government expenditure targets may stabilize an otherwise unstable system. If this is the case, an increase in the nominal stock of money will reduce the price level in the long run. 相似文献
184.
J.C. Simon 《Technological Forecasting and Social Change》1979,13(1):1-11
As they are implemented in modern computers, computable languages and computable models allow a new approach to logical and scientific thinking. Complexity and decidability problems imply some fundamental limitations to deterministic models. Some striking examples are given by large interactive programs. Different complexity concepts may be distinguished for the representations of data and for algorithms, with consequences relative to the feasibility of models. They are applied to various domains: history, power and politics, economy, and living beings. 相似文献
185.
Hermann Simon 《International Journal of Research in Marketing》1984,1(4):249-261
This paper is a revised version of the key note speech which the author gave at the 1984 Annual Conference of the European Marketing Academy (EMAC). The author critically evaluates the contributions of marketing science with respect to practical relevance and managerial decision making. He diagnoses a number of substantial discrepancies between research efforts and adoption of marketing science models. Some causes for this situation are identified and new more comprehensive research avenues are proposed and discussed. It is the intention of the article to stimulate further discussion on these important issues. Necessarily, many statements in this position paper are based on subjective judgement and not validated in a scientific sense. 相似文献
186.
Simon Domberger Stephen Rimmer 《International Journal of the Economics of Business》1994,1(3):439-453
This paper is a survey of the role and impact of competitive tendering and contracting (CTC) policies in the public sector. The paper examines the theoretical rationale for introducing competition in the provision of public services and the methodology by which contracting decisions are reached. It investigates the extent of implementation and nature of outcomes in several countries. A broad sweep of the empirical findings suggests that CTC generates substantial cost savings. Lack of adequate data makes an assessment of the effect on quality more troublesome, and further research is needed 相似文献
187.
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190.
Simon Maxwell 《Food Policy》1979,4(1):52-54
Supplementary feeding programmes have been used as one outlet for the food aid which is sent to developing nations. In the November 1978 issue of Food Policy, Simon Maxwell analyzed the costs and benefits of supplementary feeding projects, in terms of both nutritional and non nutritional results.1 In considering the importance of such results, trie rate and health status of programme drop-outs can significantly affect conclusions. An exercise demonstrating the differences in results, depending on assumptions about dropouts, is presented here for a World Food Programme (WFP) feeding project in Mexico. 相似文献