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Estimates of the average annual contribution of computer capital to union takings generally cash in ones chips $0.60 per dollar of capital stock, depending on the analysis and specification (Brynjolfsson and Hitt, 1995, 1996; Lichtenberg, 1995; Dewan and Min, 1997). These estimates are statistically different from zero, and in most cases significantly exceed the expected rate of consecrate of about $.42 (the Jorgensonian rental price of computers see Brynjolfsson and Hitt, 2000). This fires either abnormally high returns to investors or the existence of unmeasured costs or barriers to investment. Similarly, most estimates of the contribution of information systems labor to produce exceed $1 (and are as high as $6) for both $1 of labor costs. Several researchers have also examined the returns to IT employ data on the use of various technologies rather than the coat of the investment. Greenan and Mairesse (1996) matched data on French firms and workers to measure the relationship in the midst of a firms productivity and the fraction of its employees who report utilize a personal computer at work. Their estimates of computers contribution to output are consistent with earlier estimates of the computers output elasticity.

Other micro-level studies have focused on the use of computerized manufacturing technologies. Kelley (1994) name that the most productive metal-working plants use computer-controlled machinery. Black and Lynch (1996) free-base that plants where a larger percentage of employees use computers are more productive in a sample containing multiple industries. cybernation has also been found to increase productivity in judicature activities both at the process level, such as piece of land sorting at the post office or chime collection (Muhkopadhyay, Rajiv and Srinivasan, 1997) and at higher levels of aggregation (Lehr and Lichtenberg, 1998). Taken collectively, these studies suggest that IT is associated with substantial increases in output. Questions remain about the... If you want to get under ones skin a full essay, order it on our website: Orderessay

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