Clay Halton was a Business Editor at Investopedia and has been working in the finance publishing field for more than five years. He also writes and edits personal finance content, with a focus on ...

Correspondence to Professor Peter B O'Sullivan, School of Physiotherapy and Exercise Science, Curtin University, Perth, WA 6102, Australia; p.osullivan{at}curtin.edu ...

Greg DePersio has 13+ years of professional experience in sales and SEO and 3+ years as a writer and editor. Simple interest is calculated only on the principal balance of the loan each period.