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.
How costs are calculated in AdWords - Choosing a bidding strategy based on your goals. 1  Every time someone searches on Google, AdWords runs an auction to determine the ads that show on the search results page, and their rank on the page. 2  This is known as a cost-per-acquisition, or CPA bid. 3  These are the different bidding strategies that you can set.