this study is an attempt to apply the market timing andsecurity selection models to evaluate the performance of iranianmutual funds. the research shed light on the questions of ‘howsuccessful are mutual funds in earning excess returns over those of themarket?’ ‘do the excess returns during research period have anymeaningful trend for these financial intermediaries or is it the result ofthe abil...

The efficient market hypothesis has been widely tested and, with few exceptions, found consistent with the data in a wide variety of markets: the New York and American Stock Exchanges, the Australian, English, and German stock markets, various commodity futures markets, the Over-theCounter markets, the corporate and government bond markets, the option market, and the market for seats on the New...

Objective-To determine if the oil spillage from the tanker Braer had any immediate health effects on the exposed resident population. Design-Cohort study with a comparison against controls, exposure status being assigned on the basis ofgeographical location. Setting-Rural Shetland. Subjects-All those resident on or after 5 January 1993 (day 0) within 4 5 km of the site of tanker's grounding. Co...

We investigate the complexity of the xed-points of bounded formulas in the context of nite set theory; that is, in the context of arbitrary classes of nite structures that are equipped with a built-in BIT predicate, or equivalently, with a built-in membership relation between hereditarily nite sets (input relations are allowed). We show that the iteration of a positive bounded formula converges...

Wind power forecasting is becoming an important tool in electricity markets as the amount of wind power rapidly increases. However, the use of wind power forecasting in market operations and among market participants is still at an early stage. We discuss the current use of wind power forecasting in U.S. ISO/RTO markets, and give recommendations for how to make efficient use of the information ...