What is Keyword Effective Index?

what is Keyword Effective Index & What is its Basic use?

KEI is the ratio of searches for a keyword to the competition for that keyword i. e. KEI={(2 X Keyword search volume)}/(competition for the keyword). The keyword that has good searches and low competition has a good KEI and easy to rank.

I’m sorry, but this is too generic a topic and will end up being a fluff magnet. Please do some basic research, and if you have specific questions, please feel free to open a new topic with more specific questions.