Revisiting the Impact of Information Technology Investments on Productivity: An Empirical Investigation Using Multivariate Adaptive Regression Splines (MARS).

This article revisits the relationship between IT and productivity, and investigates the impact on information technology (IT) investments. Using the MARS techniques, we show that although IT Stock is the greatest predictor variable for productivity (VaIue Added), it is only significant as an interaction variable, combined with Non-IT Capital, Non-IT Labor Industry, or Size. [ABSTRACT FROM AUTHOR]