自20世纪30年代以来，大部分西方政府将保护已有企业不受竞争冲击视为自己的责任，即使参与竞争的新企业能提供新的调整或创新。
Since the 1930s, most Western governments have seen it as their duty to protect established enterprises from competition, even when it comes from new firms offering new adaptations or innovations.