In fact, they used the word element to talk about anything that was basic. Ancient Greek philosophers, for example, thought that everything consisted of four elements: earth, fire, water, and air. Other philosophers thought there were only two elements: sulfur and mercury.
The Internet was expected to eliminate search costs (Pereira 2005). For example, electronic commerce was predicted to cause disintermediation as search costs become low enough for end-consumers to incur them directly instead of employing retailers to do this for them.
Average monthly searches (Avg. monthly searches): The average number of times people have searched for a keyword and its close variants based on the targeting settings and date range you've selected. By default, we average the number of searches for the term over a 12-month period. Competition: The number of advertisers that showed on each keyword relative to all keywords across Google. Note that this data is specific to the location and Search Network targeting that you've selected. In the Competition column, you can see whether the competition for a keyword is low, medium, or high.