... modeling. Design/methodology/approach Recent research has proposed the cross-validated predictive ability test (CVPAT) to compare theoretically established models. This paper proposes several extensions that broaden the scope of CVPAT and explains the key choices researchers must make when using them...

..., while the same increase in pre-launch search volume generates a 4.1% increase. Although searches are not an influencer of sales from the second week on, the random forest models and cross-validation studies find that weekly search volume is a strong predictor of weekly revenues in this period...