Handbook of Management Scales/Information sharing
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Information sharing (alpha = 0.7486) 
- Our supply chain members practice Electronic Data Interchange, either vie VAN or Internet.
- Our supply chain members regularly (at least once a quarter) exchange supply and demand forecasts with each other.
- Our supply chain members frequently (at least once a month) exchange demand change information with each other to facilitate operational plans and reduce reliance on second-guesses.
- Min/Mentzer (2004): Developing and measuring supply chain management concepts. Journal of Business Logistics, Vol. 25, No. 1, pp. 63-99.