This is a specific investigation of the importance of technological change specific to new investment goods for postwar U.S. aggregate fluctuations. A growth model that incorporates this form of technological change is calibrated to U.S. data and simulated, using the relative price of new...

The role that investment-specific technological change played in generating postwar US growth is investigated here. The premise is that the introduction of new, more efficient capital goods is an important source of productivity change, and an attempt is made to disentangle its effects from the...

We analyze a general-equilibrium asset pricing model where a small subset of the consumers/investors have a short-run ldquo;urge to saverdquo;. That is, their attitude toward consumption in the long run is a standard one they do place zero weight on consumption far enough out in the future but...