Researches on tax costs, non-tax costs and enterprises' performance 并列题名：Researches on tax costs, non-tax costs and enterprises' performance Research on the business model and its effects on enterprise performance Research of the relationship between CEO succession and enterprise performance Research on the influence of ecological innovation on enterprise performance 并列题名：Research of the relationship between CEO succession and enterprise performance Research on service intermediate input, institutional environment and enterprises' performance investment environment of major countries and enterprise performance