This paper develops new estimates of investment in and output of information and communications technology (ICT). These new estimates imply that GDP growth has been significantly understated, particularly since 1994. A growth accounting approach is employed to measure the contribution of ICT to...

Neo-classical theory provides an integrated framework by means of which we can measure capital stocks, capital services and depreciation. In this paper the theory is set out and reviewed. It is found that the theory is quite robust and can deal with assets like computers that are subject to...

How should productivity and welfare be measured when the composition of the capital stock is shifting towards assets with shorter lives? What sort of adjustment, if any, should be made for depreciation? While GDP is still appropriate as a measure of output, in this paper it is argued that NDP...

This paper develops new estimates of investment in and output of information and communication technology (ICT). These new estimates imply that GDP growth has been significantly understated, particularly since 1994. A growth-accounting approach is employed to measure the contribution of ICT to...

According to Baumol's model of unbalanced growth, if resources are shifting towards industries where productivity is growing relatively slowly, the aggregate productivity growth rate will slow down. This conclusion is often applied to the advanced economies, where resources are indeed shifting...

Studies of firm-level data have shown that there is a huge dispersion of productivity across firms even when industries are narrowly defined. So there is a significant opportunity for the least productive firms to catch up to the most productive. The formers’ convergence could therefore...