释义 |
HelpmanBNC²³⁶²¹³⁺¹ 基本例句 埃尔普曼¹⁰⁰ Grossman and Helpman, in particular, model producers as contributing financially to incumbent politicians in return for their providing or maintaining tariff protection. 特别是在格罗斯曼与赫尔普曼设立的模型中,生产者资助了当权政客,以换取关税保护的实行或维护。 iask.sina.com.cn |