关键词: 质量改进, 过程创新, 参考质量, 参考价格, 动态控制

Abstract: To explore the optimal control of product quality improvement and process innovation in a monopoly enterprise, considering the influence of reference quality and reference price on consumer demand, a dynamic control model under the double reference effects is established, and the steady-state equilibrium and investment strategy is analyzed. The results show that under the condition of enterprise profit maximization, there exist admissible parameter constellations such that the system is a saddle point equilibrium. The steady-state investment of the enterprise is affected by product quality, marginal production cost, reference quality, and reference price. With the increase of the reference quality, the instantaneous investment rate of the enterprise in quality improvement increases while that in process innovation decreases. The two instantaneous investment rates decrease with the increase of the reference price, and the portfolio with the same symbol is complementary. The enterprise enhances consumer demand and enterprise competitiveness through the choice of quality and innovation investment strategy.

Key words: quality improvement, process innovation, reference quality, reference price, dynamic control