Producer surplus is the region from your equilibrium issue and down until eventually it hits the horizontal axis. Here is the surplus of exactly what the producers were being ready to provide the item for and the things they are advertising it for. 相对友好的价格：我们所雇佣的华人留学生稿费相对比黑人和印度人贵，但是这样更符合我们的语言习惯。在文化和写作套路上的差异也不会让老师觉得莫名... https://essayv.com/essay/