The Output Contributions of Computer Equipment and Personnel: A Firm- Level Analysis
The Output Contributions of Computer Equipment and Personnel: A Firm- Level Analysis
复制标题
计算机设备和人员的产出贡献：企业层面的分析
DOI：
10.1080/10438599500000003
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发表时间：
1993
期刊：
影响因子：
--
通讯作者：
F. Lichtenberg
中科院分区：
文献类型：
--
作者：
F. Lichtenberg
本文研究了1988-91年期间整个商业部门在企业层面上部署在信息系统（IS）中的资本和劳动力的产出贡献，使用两种不同的数据来源。我们的生产函数估计表明，有大量的超额回报，无论是资本和劳动力，虽然规模和意义的超额回报，资本是更大的。计算机资本和劳动力共同贡献或占产出的21%左右，尽管只有约10%的资本和劳动收入归于信息系统要素。虽然到1986年IS雇员占总就业人数的很小一部分，但由于IS就业人数的快速增长（每年16%），IS就业人数的增长估计对1976- 1986年的产出增长的贡献大于非IS就业人数。估计的边际替代率（MRS）之间的IS和非IS员工，在样本平均值评估，是6：一个IS员工可以取代六个非IS员工，而不影响输出。
This paper examines the output contributions of capital and labor deployed in information systems (IS) at the firm level during the period 1988-91 throughout the business sector, using two different sources of data on these inputs. Our production function estimates suggest that there are substantial excess returns to both IS capital and IS labor, although the size and significance of the excess returns to IS capital is larger. Computer capital and labor jointly contribute, or account for, about 21 percent of output, although only about 10% of both capital and labor income accrue to IS factors. Although IS employees accounted for a very small share of total employment by 1986, IS employment growth is estimated to have made a larger contribution to 1976-86 output growth than non-IS employment, due to the very rapid growth (16% per annum) of IS employment. The estimated marginal rate of substitution (MRS) between IS and non-IS employees, evaluated at the sample mean, is 6: one IS employee can be substituted for six non-IS employees without affecting output.