I would agree. I noticed that when I increased my output, my earnings also increased. Another thing happened along the way: My writing process improved. I got more efficient, I thought more about my audience, my writing was just ... better. Writing/publishing every day helps you earn money b/c there's more exposure - but, if you hone your craft, it also helps you earn b/c it helps make your end product better.
Writer and policy advocate living in Nashville, TN —Public Policy Ph.D. — writes on education policy, consumer affairs, and more . . .