Defamation, Trade Libel and Disparagement of Goods and Services (e-book): Definitions, differences and Similarities - a law school tutorial _Electronic_Version__

Excerpt:

Business torts rules are not based on Defamation although many of them are defamation-like.

A business tort like Interference with advantageous relations (P has no contract with prospect yet and sues someone intentionally using unlawful means to stop him from contracting with the prospect) and Interference with contract (P has a contract with someone and D is intentionally using unlawful means to make that person break his contract with P) are clear.