Intellectual property transactions and enterprise innovation performance 并列题名：Intellectual property transactions and enterprise innovation performance Impact of tax incentives on enterprise innovation performance Research on problems related to enterprise innovation performance Intellectual property protection and business innovation 并列题名：Impact of tax incentives on enterprise innovation performance intellectual properties and innovation practices Study on the impact of intellectual property rights protection on Chinese enterprises' innovation and performance Research on the influence mechanism of intellectual property protection on enterprise innovation performance 并列题名：Study on the impact of intellectual property rights protection on Chinese enterprises' innovation and performance