Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
We develop a model of costly technology adoption where the cost is irrecoverable and fixed. Households must decide when to switch from an existing technology to a new, more productive tecnology. Using a recursive approach, we show that there is a unique threshold level of whealth above which households will adopt the new technology and below which they will not. This threshold is independent of preference parameters and depends only on technology parameters. Prior to adoption, households invest at increasing rates, but consumption growth is constant. (Copyright: Elsevier)