Corporate Censorship Is a Serious, and Mostly Invisible, Threat to Publishing

When state or civil authorities blacklist books, the act is correctly labeled censorship. But what is the word when parent corporations act out political or ideological dissatisfaction by ordering their subsidiaries to snuff out information in the form of books, magazines, newspapers, radio, television, movies? There isn't a word or phrase that fully captures this form of censorship, at least not a negative phrase.