控制费用为“取最大”形式的可控排序问题

本文讨论了一类新的加工时间可控的单机排序问题,其目标函数为正则函数与最大不满意程度函数之和,不满意函数刻划了对工件实际加工时间偏离其额定加工时间不满意的程度,本文对这类问题提出了几个多项式算法。     

对《形状和位置公差》新标准的理解和应用

通过对《形状和位置公差》新、旧国际的对比，综述了新、旧标准间的不同之处、便于迅速了解和应用新标准。     

上海服务业发展水平的国内与国际比较

本文首先比较了上海与国内18个副省级及以上城市服务业总体发展情况，将上海服务业各行业增加值及服务业内部构成与北京、天津、重庆、广州和深圳5个国内经济发展水平较高的城市进行了比较，采用“区位熵”的方法衡量了上海服务业各行业的比较优势。其次，将上海服务业发展水平与若干国际大都市进行比较，得出上海服务业仍处于较低的发展水平，尚未进入以知识型、生产型等高级服务业为主导的发展时期，大力发展现代服务业是上海当前的现实选择的结论。     

我国医药物流业面临的机遇、挑战、现状与对策

中国已加入WTO，在新形势下如何改善医药流通，提高医药企业的竞争力？中就此分析了我国医药物流业面临的机遇、挑战和发展现状，并提出了一些对策和建议。     

Are Expected Inflation Rates and Expected Real Rates Negatively Correlated? A Long‐Run Test of the Mundell‐Tobin Hypothesis

Some empirical evidence suggests that the expected real interest and expected inflation rates are negatively correlated. This hypothesis of negative correlation is sometimes known as the Mundell‐Tobin hypothesis. In this article we reinvestigate this negative relation from a long‐term point of view using cointegration analysis. The data on the historical interest rate on T‐bills and the inflation rate indicate that the Mundell‐Tobin hypothesis does not hold in the long run for the United States, the United Kingdom, and Canada. We also obtain similar results using the real interest rate on index‐linked gilt traded in the United Kingdom.     

Speculative attack against the Hungarian forint

In mid-January 2003 a severe speculative attack was launched against the exchange rate of the Hungarian forint. The attack was very unusual in the history of foreign exchange speculations, since it was aimed at enforcing the appreciation — and not the depreciation — of the currency targeted. The specific nature of this kind of speculation is closely related to Hungary’s accession to the European Union in general and to EMU in particular. Since the other Central and Eastern European acceding countries face similar problems and challenges, the Hungarian experience may involve some instructive lessons on monetary and economic policy for them too.