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1.
6年来,国企经营者年薪制改革两次因故受阻,这其中存在一些亟待解决的深层次问题。要理性认识年薪制改革当前的目标和作用,认识这一改革的艰巨性和长期性,突出重点,化解主要矛盾,推进年薪制改革顺利进行。 相似文献
2.
An Empirical Analysis of Entrant and Incumbent Bidding in Road Construction Auctions 总被引:3,自引:0,他引:3
Dakshina G. De Silva Timothy Dunne Georgia Kosmopoulou 《The Journal of industrial economics》2003,51(3):295-316
This paper explores differences in the bidding patterns of entrants and incumbents in road construction auctions. We find that entrants bid more aggressively and win auctions with significantly lower bids than incumbents. The differences in their bidding patterns are consistent with a model of auctions in which the distribution of an entrant's costs exhibits greater dispersion than that of an incumbent's and relations of stochastic dominance in the distributions do not persist for the entire range of estimated costs. We also find that more efficient firms bid, on average, more aggressively and firms with greater backlogs bid less aggressively. 相似文献
3.
4.
Previously, few, if any, comparative tests of performance of Jackwerth's ( 1997 ) generalized binomial tree (GBT) and Derman and Kani ( 1994 ) implied volatility tree (IVT) models were done. In this paper, we propose five different weight functions in GBT and test them empirically compared to both the Black‐Scholes model and IVT. We use the daily settlement prices of FTSE‐100 index options from January to November 1999. With both American and European options traded on the FTSE‐100 index, we construct both GBT and IVT from European options and examine their performance in both the hedging of European option and the pricing of its American counterpart. IVT is found to produce least hedging errors and best results for American call options with earlier maturity than the maturity span of the implied trees. GBT appears to produce better results for American ATM put pricing for any maturity, and better in‐sample fit for options with maturity equal to the maturity span of the implied trees. Deltas calculated from IVT are consistently lower (higher) than Black‐Scholes deltas for both European and American calls (puts) in absolute term. The reverse holds true for GBT deltas. These empirical findings about the relative performance of GBT, IVT, and Standard Black‐Scholes models are important to practitioners as they indicate that different methods should be used for different applications, and some cautions should be exercised. © 2002 Wiley Periodicals, Inc. Jrl Fut Mark 22:601–626, 2002 相似文献
5.
The present study explores three uncertainty reduction mechanisms that arise in the context of business alliance formation to assess whether these same mechanisms also operate in the development of alliances between non-profits and businesses. Secondary data from field-based case studies of Latin American cross-sector alliances are the focus of this analysis. The findings show that the same mechanisms operate to reduce uncertainty in cross-sector alliance formation and that alliance experience appears to determine the presence of some mechanisms. 相似文献
6.
Silva Portela Maria Conceição A. Borges Pedro Castro Thanassoulis Emmanuel 《Journal of Productivity Analysis》2003,19(2-3):251-269
This paper draws attention for the fact that traditional Data Envelopment Analysis (DEA) models do not provide the closest possible targets (or peers) to inefficient units, and presents a procedure to obtain such targets.It focuses on non-oriented efficiency measures (which assume that production units are able to control, and thus change, inputs and outputs simultaneously) both measured in relation to a Free Disposal Hull (FDH) technology and in relation to a convex technology. The approaches developed for finding close targets are applied to a sample of Portuguese bank branches. 相似文献
7.
本文首先分析了西部地区集装箱运输发展面临的三大形势,即西部大开发、我国已经加入WTO和集装箱运输的第四次革命,然后从六个方面探讨了西部地区集装箱运输发展的制约因素,最后提出了西部地区集装箱运输进一步发展应采取的十大对策。 相似文献
8.
The paper investigates a climate-economy model with an iso-elastic welfare function in which one parameter measures relative risk-aversion and a distinct parameter measures resistance to intertemporal substitution.We show both theoretically and numerically that climate policy responds differently to variations in the two parameters. In particular, we show that higher but lower leads to increase emissions control. We also argue that climate-economy models based on intertemporal expected utility maximization, i.e. models where = , may misinterpret the sensitivity of the climate policy to risk-aversion. 相似文献
9.
The long-run relationship between nominal interest rates and inflation is examined, allowing for structural breaks and asymmetric mean reversion. From a Threshold AutoRegressive (TAR) test applied to the residuals of the cointegration relationship (while allowing for both a break in the mean of the long-run equation and a smooth regime-transition), there is strong evidence for non-linear mean reversion properties for the real interest rates of the US Treasury Bill market. This suggests asymmetric changes to inflation shocks in the Central Bank's reaction function. The existence of different regimes is consistent with some interpretations of the monetary policies run by the Fed, such as credibility and opportunism. 相似文献
10.
北京城乡结合部的发展演变及启示 总被引:10,自引:1,他引:10
在研究北京城乡结合部于改革开放后发展变化历程的基础上,对城乡结合部在北京发展中的四个作用作了详细的分析,对北京城乡结合部发展中存在的六个方面的问题也进行了分析并提出了相应的对策建议. 相似文献