Was 1994 a watershed ? It saw an inrease in the rate of technological change in the production of new equipment. It was the start of a sharp rise in income inequality. It signaled the beginning of the productivity slowdown. Were these phenomena related? Could they have been the result of an...

An overlapping generations model of marriage and divorce is constructed to analyze family structure and intergenerational mobility. Agents differ by sex, marital status, and human capital. Single agents meet in a marriage market and decide whether to accept or reject proposals to wed. Married...

Technological progress comes in waves. The birth of information technology (IT) may herald the start of a Third Industrial Revolution. This paper argues that (a) the market declined in the late 1960s because it felt that the old technologies either had lost their momentum or would give way to...

A prototypical vintage capital model of economic growth is developed, where the decision to replace old technologies with new ones is modeled explicitly. Technological change is investment specific. Depreciation in this environment is an economic , not a physical concept.

Was 1994 a watershed? It was dawning of the information age, a period of rapid technological advance associated with the introduction of information technologies. It also was the start of a sharp rise in income inequality and signaled the beginning of the productivity slowdown.

How much technological change progress has there been in structures? An attempt is made to measure this using panel data on the age and rents of buildings. The data are interpreted with the help of a vintage capital model where buildings are replaced with some chosen periodicity. The key is a...

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...