First-Price Sealed Auction Price Game and Equilibrium Analysis Based on Trapezoid Distribution

This paper improves the traditional first‐price sealed‐bid auction model and makes some compari‐sons between the models by using the idea of trapezoid distribution ,which aims at overcoming the short‐age of the traditional first‐price sealed‐bid auction model and combines the characteristics of the actual auc‐tion in life .The final results show that compared with the traditional model ,the improved model can bet‐ter reflect the real situation and hence has certain realistic directive significance .