Online Auctions (IMAGE) Karlsruher Institut für Technologie (KIT) Caption Online auctions combine shopping with entertainment and thrill. When perceiving the competition of real contenders, people tend to increase their bids. Credit Photo: KIT Usage Restrictions The image may only be used with appropriate caption or credit. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.