Over 191 channels including local channels (in SD and HD) available in over 99% of U.S. households:1 ABC | CBS | FOX | NBC | PBS | CW & MyTV (available in select markets). Includes most MÃS LATINO channels, plus the channels shown in BOLD.
However, I would define economics as: the study of how individuals and groups make decisions with limited resources as to best satisfy their wants, needs, and desires. A more detailed definition and discussion is found in What is Economics?
When economics has this meaning, it is an uncountable noun. You use a singular form of a verb with it. Economics is a science. If you want to say that something relates to the subject of economics, you use economics in front of another noun. He has an economics degree.