All these are given protection by law. In leading developed countries such as the United States protection extends to such laws guarding against unfair business practices, including the marketing and packaging of goods.
先進國家還有所謂的「公平交易法」，以限制不公平的競爭行為。例如：採用與名牌相似或雷同的包裝方式，因名牌已投資大量行銷費用使此包裝在消費者心中留下印象，「拾人牙慧」者就違反了公平競爭的原則。