Another element deemed are the transaction costs that can be added when making a copyright transactions. https://toptoto.org/%EA%B5%AD%EB%82%B4%EC%99%B8-%EC%9D%B8%EA%B8%B0-%EC%B9%B4%EC%A7%80%EB%85%B8%EC%82%AC%EC%9D%B4%ED%8A%B8-%EC%A6%90%EA%B8%B8-%EA%B1%B0%EB%A6%AC%EC%99%80-%EC%95%88%EC%A0%84%EC%84%B1%EC%9D%84-%EB%8F%99/
