The path that the price takes during an on-line auction plays an important role in understanding and forecasting on-line auctions. Price dynamics, such as the price velocity or its acceleration, capture the speed at which auction information changes. The ability to estimate price dynamics...

type="main" xml:id="rssc12050-abs-0001" <title type="main">Summary</title> <p>A major issue in non-inferiority trials is the controversial assumption of constancy, namely that the active control has the same effect relative to placebo as in previous studies comparing the active control with placebo. The constancy assumption...</p>