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It is found that productivity impact of information network use is different, depending on application of network.
Finally, when the main network is achieved, its marginal productivity becomes similar to the productivity of other investment.
This increase in productivity is mainly due to technical progress.
On the contrary, when a minimum network is available, the marginal productivity of infrastructure investment is generally largely greater than the productivity of other investment.
Finally, we find that the profitability of the firm that offers a free product always increases in network effects intensity and market size, but this is not the case for the firm that sells the bundle.
Also, several productivity ratios may be defined, and the network of relationships between them demonstrates how one productivity ratio can improve at the expense of another.
Open accessReportDOI
Dominick Bartelme, Yuriy Gorodnichenko 
70 Citations
Specialization is a powerful source of productivity gains, but how production networks at the industry level are related to aggregate productivity in the data is an open question.
The productivity results indicate productivity progress under both models, albeit with a slower rate of change under the network model.