Forex Trading Course

Category: glossary , Asked by: Mckinley V. From Switzerland

A: An implication surrounding the use of time-series data in which the final statistical conclusion can change based on to the starting or ending dates of the sample data. The concept discourages using a smaller time series, as chance events are more likely to be reflected in the conclusion. When testing various investment strategies, the time-series basis can be significant. Idiosyncratic events or using a time frame that only captures certain business cycles can make certain strategies appear more profitable than they really are. To help avoid the time-period basis when testing investment ideas, one should use very long periods of sample data. For example, let's test a momentum strategy in which an investor enters a long or short position in a stock that has a rapid price increase or decrease. The investor identifies a stock to buy for the testing period. If the strategy is tested during a period where the entire market was strengthening, it could make the momentum strategy appear very profitable. However, if the profits were driven only by the conditions of the market, then the strategy would become dangerous in an economic downturn. Extending the testing period to allow full business cycles would reveal the true profitability of the strategy.

Category: glossary , Asked by: L. F. From Westminster, United States

A: An official document issued by the Internal Revenue Service (IRS) permitting the undersigned to claim residency within the U.S. For income tax reporting purposes. The form is officially called a "Certificate of Alien Claiming Residence in the United States", and will make the undersigned's total income subject to the tax laws of the United States for the tax period specified. Form 1078 is used only if the undersigned became a resident alien before 2001. For all other cases, form W-9 is used instead. This form must be filled out by those people working within the United States by using either a work visa, or work permit. All income this individual earns during the tax year, either from within the U.S. Or from another country, will be subject to American tax law. Depending on the country the landed resident came from, they may be subject to not only U.S. Tax law for income earned in an additional country, but also from the originating country as well.

Category: general , Asked by: T. Serrano from United States

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