In recent decades, much comparative testing has been conducted to determine which forecasting methods are more effective under given conditions. This evidence-based approach leads to conclusions that differ substantially from current practice. This paper summarizes the primary findings on what...

Over the past decade, researchers have expressed concerns over what seemed to be a paucity of replications. In line with this, editorial policies of some leading marketing journals have been modified to encourage more replications. We conducted an extension of a 1994 study see whether these...

This review gives a description of the content of Dillman's book. It goes on to describe the flaws not only to alert the reader but also in the hope that Dillman will write a new edition to overcome these problems. He could convert a gold book into an excellent one

Research on forecasting is extensive and includes many studies that have tested alternative methods in order to determine which ones are most effective. We review this evidence in order to provide guidelines for forecasting for marketing. The coverage includes intentions, Delphi, role playing,...

Valid predictions for the direction of nonresponse bias were obtained from subjective estimates and extrapolations in an analysis of mail survey data from published studies. For estimates of the magnitude of bias, the use of extrapolations led to substantial improvements over a strategy of not...

Replication is rare in marketing. Of 1,120 papers sampled from three major marketing journals, none were replications. Only 1.8% of the papers were extensions, and they consumed 1.1% of the journal space. On average, these extensions appeared seven years after the original study. The publication...