Ask Customers This in 2018 (Jim Karrh On Marketing) by Jim Karrh Posted 11/20/2017 12:00 am Updated 1 year ago The benefit of escaping the assumption that your customers know all of the things you offer can mean increasing your revenue by 10 to 20 percent — or more. Want the Full Article? Get Unlimited Archive Access for $19.95 per Year Readers must pay to access articles older than 15 days. Articles newer than 15 days are not included in this offer. Purchase Now Already have archive access? Login to view this article.