The World Wide Web contains a vast corpus of consumer-generated content that holds invaluable insights for improving the product and service offerings of firms. Yet the typical method for extracting ...

https://doi.org/10.1899/04-085.1 • https://www.jstor.org/stable/10.1899/04-085.1 Copy URL AbstractTwo-phase sampling provides a statistical framework for combining ...

primary - information that is collected first-hand, eg tallies, measurements and photographs secondary - information that someone else has previously collected and made available, eg on the internet ...