This paper presents a non-technical overview of the recent investment literature with a special emphasis on the … connection between technological progress and the investment decision. First of all, we acknowledge that some dramatic advances …. Nonetheless, this new literature has not satisfactorily accounted for the investment-specific (or embodied) nature of technical …

motives for investment. Specifically, firms invest to expand capacity and to replace old machines. The model considers … irreversible investment under uncertainty and embodied technological progress. It is shown to be consistent with the following … empirical observations: Investment is lumpy and infrequent at the firm level; firms can invest even if they have not reached …