In documentary making, what do we mean when we say every story has a hero and a villain?

Every story has heroes or villians

Explanation:

Because in every story we need some actions or dramas for eg: we need heroes to save the world or the girl main character and we need villian because as i said we need some dramas

cause you are attracted to the features of girls or if you are a boy you are attracted to the features of a boy.

trade regulation is a field of law, often bracketed with antitrust (as in the phrase “antitrust and trade regulation law”), including government regulation of unfair methods of competition and unfair or deceptive business acts or practices. antitrust law is often considered a subset of trade regulation law. franchise and distribution law, consumer protection law, and advertising law are sometimes considered parts of trade regulation law.

in general the theory of economics says that the more open to trade a country is the better   the result for the same country and the whole economies.

in real life countries impose taxes, quotas, etc which is not so good for the economies.

this kind of commercial war between the usa and china is slowing down the growth of the whole world so we can say that it is a draw back of trade regulations. and the free trade agreements are benefits of trade regulations.