溢出效应或外部效应是指个人或企业的行为直接影响到其他个人或企业,但其他个人或企业并没有因此而支付成本或得到补偿的情形。()
制度学派认为:由于知识完备与信息对称几乎是不可能(成本太高),所以,所谓的理性的经济人是不存在的,因而“经济人”的假设也是不成立的。()
____in an atmosphere of sirmple living was what her parents wished for.
A. The girl to be educated
B. The girl’s being educated
C. The girl educated
D. The girl was educated
This is the most beautiful national park_____.I have ever visited
A. which
B. where
C. that
D. what