Cash equivalents refer to those short term highly liquid security investments such as marketable securities like commercial papers which can be converted into cash within 90 days or 3 months.
Cash equivalents are characterized by their maturity period being 3 months or lesser.
Commercial papers and certificate of deposits maturing in less than 3 months constitute cash equivalents.
Two major characteristics of cash equivalents being, their maturity period being 3 months or lesser and their maturity value is not subject to fluctuations i.e it is known in advance.
Marketing is promoting and selling goods and services. On a national level, it is promoting and selling the outputs or products of one country to another country.
Based on the scenario being described within the question it can be said that George is a creative salesperson, and is the main reason why he is so valued. This creativity allows George to come up with all the new ideas that others may not be able to come up with, and these ideas and tactics create value to the company.