Definitions and Basics. Definition: Market failure, from Answers.com An economic term that encompasses a situation where, in any given market, the quantity of a product demanded by consumers does not equate to the quantity supplied by suppliers.
MarketWatch News on NUVA. 1  Nasdaq traverses uncharted territory, S&P 500 holds the range top. 2  NuVasive stock price target raised to $74 from $55 at J.P. Morgan. 3  NuVasive upgraded to overweight from neutral at J.P. Morgan.  U.S. benchmarks digest Brexit-fueled whipsaw, S&P 500 tops near major resistance.
Nuva Ring is a flexible ring about the size of a ponytail holder that is full of hormones. It is a form of birth control that provides the hormones vaginally instead of orally. You place it inside your vagina towards the cervix and leave it there for 3 weeks. The Proper Use of NuvaRing Contraception NuvaRing was the first vaginal birth control method. 2  It is a plastic, flexible ring a woman inserts into her vagina monthly to prevent pregnancy.