Sorry, something has gone wrong. Best Answer: The Enhanced Fujita Scale, or EF Scale, is the scale for rating the strength of tornadoes in the United States estimated via the damage they cause.
DEFINITION of 'Basis Trading'. An arbitrage trading strategy that aims to profit from perceived mispricing of similar securities.
For instance, oil, and various other materials can be. extracted and enter into trade. However, other resources. form theeconomic basis for various sectors of. economy, and therefore are only involved in. trade in an indirect way (Josling, 2009).