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Exploring Supply Chain Relationships And Information Exchange In Uk Grocery Supply Chains: Some Preliminary Findings, Mark Barratt
Exploring Supply Chain Relationships And Information Exchange In Uk Grocery Supply Chains: Some Preliminary Findings, Mark Barratt
Management Faculty Research and Publications
No abstract provided.
Principles For Examining Predictive Validity: The Case Of Information Systems Spending Forecasts, Fred Collopy, Monica Adya, J. Scott Armstrong
Principles For Examining Predictive Validity: The Case Of Information Systems Spending Forecasts, Fred Collopy, Monica Adya, J. Scott Armstrong
Management Faculty Research and Publications
Research over two decades has advanced the knowledge of how to assess predictive validity. We believe this has value to information systems (IS) researchers. To demonstrate, we used a widely cited study of IS spending. In that study, price-adjusted diffusion models were proposed to explain and to forecast aggregate U.S. information systems spending. That study concluded that such models would produce more accurate forecasts than would simple linear trend extrapolation. However, one can argue that the validation procedure provided an advantage to the diffusion models. We reexamined the results using an alternative validation procedure based on three principles extracted from …