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詹姆士·托宾的投资理论———设备投资的ｑ理论姜瑶英乔根森的新古典派投资理论提出之后，自６０年代后期以来受到了多种批评。其中最主要的批评意见认为，投资理论应区别投资的边际效率与资本的边际效率。对于投资的边际效率与资本的边际效率的区别，Ｔ·哈文芬莫１９６...
James Tobin’s Investment Theory - q Theory of Equipment Investment After Jiang Yaoying’s introduction of Jorgensen’s neoclassical investment theory, he has been criticized for several reasons since the late 1960s. The most important criticism is that investment theory should distinguish between the marginal efficiency of investment and the marginal efficiency of capital. For the difference between the marginal efficiency of investment and the marginal efficiency of capital, T. Harvard-Mo 196 ...