If you are an unmarried taxpayer, with at least one child or dependemnt livinign wii\th you your filing status should be

It should be "Head of Household".

The filing status “Head of Household” is for single or people who are not married and they keep up a home for a Qualifying Individual. The filing status Head of Household has some vital tax focal points over the Single status. Head of Household must have a higher salary than Single filers based on the fact that they owe income tax.

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.