Is it illegal to open a shop without authorization and resell the purchased goods (with trademarks)? Are there any legal provisions that explicitly restrict it? Or is there any relevant precedent of the Supreme Court? in most cases, it is illegal to resell other people's goods without authorization, which may involve many legal issues. The following are some possible legal provisions:

1. Trademark law: reselling other people's goods may infringe the rights and interests of trademark owners. Trademark law protects the exclusive right of trademark owners to their trademarks, including prohibiting others from using, selling or reselling goods bearing the trademarks without authorization.

2.? Copyright law: if the resold goods involve works protected by copyright (such as works of art, books, music, etc.), then unauthorized resale may infringe the rights and interests of copyright owners.

3.? Patent Law: If the resold goods are protected by patents, then unauthorized resale may constitute patent infringement.

4.? Unfair competition law: reselling other people's goods may be regarded as unfair competition, especially if the reseller sells the goods at a price lower than the normal market price, thus causing competition damage to the original manufacturer or authorized dealer.

The specific application of laws and the determination of illegal acts will be different according to the legal systems of different countries and regions. In addition, in some cases, it may be legal to resell other people's goods, such as reselling items owned by individuals in the second-hand market.

If you have specific resale behaviors or situations that need to be consulted, it is recommended to consult local legal professionals for accurate legal advice and guidance.