account for over half of personal computer (PC) units sold worldwide …

This study estimates rates of deterioration and depreciation for a sample of used privately owned single- and twin … new and used planes throughout the late 1970s and 1980s. This period of rapid price inflation coincides with a decrease in … the depreciation rates for used single- and twin-engine aircraft after 1975. In addition, our results indicate that the …

focuses on two effects - the effect of increased productivity in the computer-producing sector and the effect of investments … all of the recent acceleration in U.S. labor productivity. In calculating the computer-usage effect, standard NIPA … computer capital stock are developed that imply larger effects on growth of computer capital accumulation than are suggested by …

human capital depreciation in late adulthood. Studying human capital depreciation over the life cycle has powerful economic … consequences for decision-making in old age. Using data from China, we examine how a new retirement program affects cognitive … that the program leads to larger negative impacts among women. We demonstrate that retirement and access to a retirement …